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EAC Agenda 07/03/1995 COLLIER COUNTY ENVIRONMENTAL ADVISORY BOARD AGENDA JULY 3, 1995; 9:00 a.m. COMMISSION BOARDROOM, THIRD FLOOR--ADMINISTRATION BUILDING I. ROLL CALL II. APPROVAL OF MINUTES--June 5, 1996 III. ADDENDA IV. CONSENT/ADMINISTRATIVE APPROVAL AGENDA V. REGULAR AGENDA A. Preliminary Subdivision Plat Petition No. PSP-96-7 "Fakahatchee Single Family Subdivision at Port-of-the-Islands" Sections 4 & 9, Township 52 South, Range 28 East Collier County, Florida VI. OLD BUSINESS VII. NEW BUSINESS A. Habitat Protection Standards VIII. ADJOURNMENT IX. WORKSHOP ****************************************************************************** NOTES: A. [Board Members]: Notify the PLANNING SERVICES DEPARTMENT (643-8400) no later than 5 P.M. on Monday, July 1, 1996, if you cannot attend this meeting or if you have conflict and thus will abstain from voting on a particular petition. B. [General Public]: Any person who decides to appeal a decision of this board will need a record of the proceedings pertaining thereto; and therefore may need to insure that a verbatim record of the proceedings is made, which record includes the testimony and evidence upon which the appeal is to be based. ****************************************************************************** COMMUNITY DEVELOPMENT SERVICES DIVISION PLANNING SERVICES DEPARTMENT MEMORANDUM TO: EAB Members Engineering Reviewers Environmental Reviewers FROM: Earlene M. Weber Senior Secretary DATE: June 26, 1995 RE: July 5, 1995 EAB Meeting Please be advised the July 5, 1995 EAB meeting has been canceled. There were no petitions ready to be placed on this agenda. The next regularly scheduled meeting will be August 2 , 1995. If you have any questions, please call Barbara Burgeson, Environmental Specialist II at 643-8400. ew/doc: 9472 cc: Robert J. Mulhere, AICP,Planning & Technical Services Manager Thomas E. Kuck, P. E. , Engineering Review Services Manager Sue Buck, County Manager's Office Heidi Ashton, County Attorney's Office Reading File EAB Correspondence File Item V.A. ENVIRONMENTAL ADVISORY BOARD STAFF REPORT MEETING OF JULY 3, 1995 I. NAME OF PETITIONER/PROJECT: Petition No. : Preliminary Subdivision Plat Petition No. PSP-96-7 Petition Name: Fakahatchee Single Family Subdivision at Port-of-the-Islands Applicant/Developer: Harbor Development, Inc. Engineering Consultant: Hole, Montes & Associates, Inc. Environmental Consultant: Turrell & Associates, Inc. II. LOCATION: The subject property is located on the west side of the Faka Union Canal, immediately north of U. S. 41, at Port-of-the-Islands. In general the site is located approximately twenty (20) miles southeast of Naples in Sections 4 and 9, township 52 South, Range 28 East, Collier County, Florida. II. DESCRIPTION OF SURROUNDING PROPERTIES: Lands around the proposed subdivision are generally undeveloped. Port-of-the-Islands lies immediately to the east and south of the subject property. ZONING DESCRIPTION N - A-ACSC/ST Generally Undeveloped S - RT Port-of-the-Islands C-4 (Partially Developed) E - CON Port-of-the-Islands RT (Partially Developed) W - A-ACSC/ST Generally Undeveloped PROJECT DESCRIPTION: The proposed project is a single family subdivision consisting of 35 five acre lots with a single access road. Impacts will be limited to 10% of the naturally vegetated portion of the property. Plan of Record: Water Management: "Fakahatchee" Single Family Resort at Port-of-the-Islands Preliminary Subdivision Plat, prepared by Hole, Montes, & Associates, Inc. , their project #95-43 , Sheet 3 of 4 , dated April 1996. EAB Meeting 7/3/1996 PSP-96-7 nage 2 Environmental: Fakahatchee Single Family Subdivision Environmental Impact Statement prepared by Turrell and Associates, Inc. , dated May, 1996. V. STAFF COMMENTS: Water Management: The site' s position - adjacent to the Faka Union Canal - makes water quantity considerations unnecessary. There is no danger of the runoff flooding downstream properties. The roadside swale/retention area appears to be sized to accept the first 2 .4 inches of runoff from the road. Driveway and front roof runoff will decrease that retention. Side and rear roof runoff appear to be stored in the clear area around the house pad. Environmental: Vegetatively the site contains hardwood swamp, pine flatwoods, freshwater marsh, canal spoil bank and a native tree nursery. Herbaceous vegetation in the nursery is fairly diverse and composed mainly of wetland species. Exotic vegetation is generally restricted to the area around the nursery, U. S. 41 and spoil bank adjacent to the canal. A list of woody plants observed by Staff during a recent site visit to the subject property is attached to this staff report. Proposed development will occur on the east side of the property along the Faka Union Canal. This area contains both the nursery and canal spoil bank. Most of the canal bank, north of the nursery, is heavily vegetated and turns into a hardwood swamp as you proceed northward. Red Maple is the dominant species on this portion of the property. No listed wildlife species were found by the petitioner on the subject property. The U.S. Fish and Wildlife Service (USFWS) has documentation of listed wildlife species within the project area. Listed Wildlife species documented from the project area include the Florida panther and West Indian manatee. Correspondence from the USFWS is included in the Environmental Impact Statement (EIS) . A review of the historical/archaeological probability maps for Collier County indicate no archaeological or historical sites to be located within the project area. . RECOMMENDATIONS: Staff recommends approval of Preliminary Subdivision Plat Petition No. PSP-96-7, "Fakahatchee Single Family Subdivision with the following stipulations: EAB Meeting 7/3/1996 PSP-96-7 'nage 3 Water Management: 1. Petitioner shall obtain necessary South Florida Water Management District (SFWMD) permits prior to site development plan or subdivision master plan approval. Environmental: 1. Permits or letters of exemption from the U. S. Army Corps of Engineers (ACOE) and South Florida Water Management District (SFWMD) shall be presented prior to final plat/construction plan approval. 2 . Environmental permitting shall be in accordance with the state of Florida Environmental Resource Permit rules and be subject to review and approval by Current Planning Environmental Review Staff. Removal of exotic vegetation shall not be counted towards mitigation for impacts to Collier County jurisdictional wetlands. 3 . At the time of final plat/construction plan submittal, petitioner shall show areas of twenty-five percent (25%) retained native vegetation as required in Section 3 . 9 . 5. 5. 3 of the Collier County Land Development Code. 4 . All conservation areas shall be recorded on the plat with protective covenants per or similar to Section 704 . 06 of the Florida Statues. Conservation areas shall be dedicated on the plat to the project' s homeowners association or like entity for ownership and maintenance responsibilities and to Collier County with no responsibility for maintenance. 5. An exotic vegetation removal, monitoring, and maintenance (exotic-free) plan for the site, with emphasis on the conservation/preservation areas, shall be submitted to Current Planning Environmental Review Staff for review and approval prior to final site plan/construction plan approval. 6. Petitioner shall comply with the guidelines and recommendations of the U. S. Fish & Wildlife Service (USFWS) and Florida Game and Fresh Water Fish Commission (FGFWFC) regarding potential impacts to protected wildlife species. 7 . This petition is subject to a forty-five (45) day appeal period by the Florida Department of Community Affairs. PREPARED BY: Stan Chrzanowski Date Senior Engineer EAB Meeting 7/3/1996 PSP-96-7 "age 4 ///1(-1741-/ 41 '-'1A- ( /LIA Stephen Lenberger Date Environmental Specialist II REVIEWED BY: zd 4LI // /y Thomas E Kuck, P. . Date Engineering Review Manager / /k/ Z Robert J. Mulhere, AICP Date Current Planning Manager EAB Meeting 7/3/1996 PSP-96-7 Page 5 Plant List from June 6, 1996 site visit. Stephen Lenberger, Environmental Specialist Woody Vegetation (Excluding Nursery Trees) red maple (Acer rubrum) live oak (Ouercus virginiana) laurel oak (Ouercus laurifolia) cabbage palm (Sabal palmetto) coastal plain willow (Salix caroliniana) wax myrtle (Myrica cerifera) red bay (Persea sp. ) slash pine (Pinus elliottii) cypress (Toxodium sp. ) persimmon (Diospyros virginiana) myrsine (Myrsine floridana) swamp dogwood (Cornus foemina) saw palmetto (Serenoa repens) strangler fig (Ficus aurea) Brazilian pepper (Schinus terebinthifolius) pond apple (Annona glabra) salt bush (Baccharis sp. ) utton bush (Cephalanthus occidentalis) .arleaf acacia (Acacia auriculiformis) red mangrove (Rhizophora mangle) E6-14-1995 E18:01PM P.01 Christine D. Straton 1441 Gulf Coast Drive Naples, Florida 33963 435-8169 597-7127 (Fax) Date: 6/15/95 To: Earlene Weber From: Chris Straton Subject: July EAB Meeting I will be on vacation during July and will be absent from the July LAB Meeting. Please ask Mr. Foley to chair the meeting (if we have one scheduled). TOTAL P.01 COMMUNITY DEVELOPMENT SERVICES DIVISION PLANNING SERVICES DEPARTMENT PLANNING & TECHNICAL SERVICES SECTION MEMORANDUM TO: Wayne Arnold, AICP, Planning Services Dept. Director FROM: Barbara Burgeson, ES II , Planning & Technical Services Section DATE: July 7 , 1995 RE: Hideaway Beach PUD Amendment, PUD-80-20 (5) Staff has reviewed the Collier County Growth Management Plan Conservation and Coastal Management Element (CCGMP, CCME) , The Collier County Land Development Code (CCLDC) and all other materials available to Staff related to this Amendment. Site visits were conducted on May 11th, 1995 (to do a cursory vegetation analysis of the adjacent sites) and June 29th, 1995 (to ground truth the 1993 vegetation line as drawn by Tom McDaniel from the 1993 aerials) . For this Amendment to be in compliance, the listed Codes and Policies shall be applied to the development and the stipulations that follow shall be incorporated into the PUD document. Applicable codes: CCGMP, CCME 11 . 4 . 3 " Prohibit activities which would result in man induced shoreline erosion beyond the natural beach erosion cycle or that would deteriorate the beach and dune system. " CCGMP,CCME 11. 4 . 4 " Require dune stabilization and restoration improvements in land development projects along beach areas. " CCGMP, CCME 11. 4 . 5 " Initiate and support beach and dune restoration and preservation programs where appropriate. " CCGMP,CCME 11. 4 . 10 " Vehicle traffic or traffic on the beach and primary dunes shall be prohibited except for emergency and approved maintenance purposes. The County shall enforce this requirement with the existing Vehicle On The Beach Ordinance. " CCLDC 3 . 10 SEA TURTLE PROTECTION CCLDC 3 . 10 . 3 New Development Standards for construction of single family or Multi-family dwellings within 300 feet of the line of mean high water. (3 . 10. 3 . 1 . THRU 3 . 10 . 3 . 7) CCLDC 3 . 10 . 4 Existing Development Standards (3 . 10 . 4 . 1 THRU 3 . 10.4 .4) CCLDC 3 . 10 . 7 Construction During Sea Turtle Nesting Season (3 . 10. 7 . 1 THRU 3 . 10 . 7 . 2) CCLDC 3 . 10 . 9 Permits and Fees (3 . 10 . 9 . 1 THRU 3 . 10 . 9 . 3) CCLDC 3 . 10. 10 Penalties. CCLDC 3 . 12 COASTAL ZONE MANAGEMENT CCLDC 3 . 12 . 5. 4 . 2 "All beachfront land development projects shall be required to revegetate the dune where the dune is devoid of coastal dune vegetation. " CCLDC 3 . 12 . 5. 4 . 4 "Appropriate coastal dune or strand vegetation shall be required as the only stabilizing medium in any coastal barrier dune or strand vegetation restoration program. " CCLDC 3 . 14 VEHICLE ON THE BEACH REGULATIONS CCLDC 3 . 14 . 2 Unlawful to drive on sand dunes or beach or to disturb sand dune. (3 . 14 . 2 (1) and 3 . 14 . 2 (2) ) . CCLDC 3 . 14 . 3 Exceptions; permit. (3 . 14 . 3 . 1 THRU 3 . 14 . 3 . 3) CCLDC 3 . 14 . 4 "Permit for construction. Prior to beginning construction in proximity to a sand dune for any purpose whatsoever, including conservation, a temporary protective fence shall be installed a minimum of ten feet landward of the dune. It shall be unlawful to cause or allow construction and related activity seaward of such fence. Each permit for work shall clearly indicate the provisions of this code and the protective measures to be taken and shall be subject to the provisions of section 3 . 14 . 6 of this division. " CCLDC 3 . 14 . 6 Operation of vehicles on the beach during sea turtle nesting season. (3 . 14 . 6. 1) Staff made the following conclusions during a site visit on June 29: The environmental staff supports a setback of approximately forty feet on lots 15 , 16 & 17 in Block 1. This would preserve a twenty foot swath of native vegetation at the rear of each of these lots and would be consistent with the vast majority of homes already constructed. For these lots a 50 foot setback would be consistent with CCGMP/CCME 11. 4 . 3 , 11 . 4 . 4 and 11 . 4 . 5 and with CCLDC 3 . 12 . 5. 4 . 2 and 3 . 12 . 5 . 4 . 4 . A 20/30 setback would be inconsistent with these policies and codes. On the remainder of the lots in Block 1, the Clubhouse site and lots 1 through 7 in Block 2 , Staff supports the more landward of either the '78 Building Control Line or the proposed 20ft/30ft setback line as this would adequately address the CCGMP/CCME policies and CCLDC codes and would be consistent. For lots 8 through 12 of Block 2 the following is proposed. Due to the enormous erosion problem that has affected these properties over the past twenty years Staff proposes that each lot be addressed individually at the time of building permit submittal. The appropriate setback from mean high water shall be determined at that time. Each property shall be required to revegetate the dune where it is devoid of dune vegetation therefor these lots shall plant approximately twenty feet of dune or strand vegetation between mean high water and the most seaward edge of the building (principal or accessory structure) . These requirements would be consistent with CCGMP/CCME 11. 4 . 4 and 11 . 4 . 5 and with CCLDC 3 . 12 . 5 .4 . 2 and 3 . 12 . 5 . 4 . 4 . Staff recommends the following stipulation be added to the PUD document: 1. The PUD shall be in compliance with the Collier County Growth Management Plan Conservation and Coastal Management Element (special attention to Objective 11. 4) and the Collier County Land Development Code (special attention to Divisions 3 . 10, 3 . 12 and 3 . 14) prior to final development order approvals. 2 . Lots 14 , 15, 16 & 17 of Block 1 shall have a 50 foot setback from the Erosion Control Line. No vegetation shall be removed seaward of that line with the exception of any required exotic removal. 3 . Lots 1 THRU 13 in Block 1, the Clubhouse site and Lots 1 THRU 7 in Block 2 shall have the more landward of either the 1978 Building Control Line or the proposed 20/30 foot setback from the Erosion Control Line. No vegetation shall be removed seaward of that line with the exception of any required exotic removal . 4 . Lots 8 THRU 12 in Block 2 shall be setback the appropriate distance from mean high water at the time of building permit approval allowing enough distance between the structure and mean high water to revegetate a minimum 20 foot swath of dune or strand vegetation . 5. All beachfront land development projects (including but not limited to all homes or clubhouse buildings in Blocks 1 and 2) shall be required to revegetate the dune where the dune is devoid of coastal dune vegetation. BSB/doc: <> cc: File PUD-80-20 (5) Chrono File AGENDA ITEM 7-G MEMORANDUM TO: COLLIER COUNTY PLANNING COMMISSION FROM: COMMUNITY DEVELOPMENT SERVICES DIVISION DATE: July 6, 1995 RE: PETITION PUD 80-20 (5) , COMMUNITY DEVELOPMENT SERVICES DIVISION, REPRESENTING THE BOARD OF COUNTY COMMISSIONERS, REQUESTING AN AMENDMENT TO THE HIDEAWAY BEACH PUD, ORDINANCE 92-11, BY AMENDING SECTION 4 . 04 . 04 MINIMUM SETBACKS, BY CHANGING THE MINIMUM PRINCIPAL AND ACCESSORY BUILDING SETBACK REQUIREMENTS FOR LOTS ABUTTING THE BEACH FOR PROPERTY LOCATED IN PART OF SECTIONS 5, 6 & 7, TOWNSHIP 52 SOUTH, RANGE 26 EAST, COLLIER COUNTY, FLORIDA. AGENT/APPLICANT: Agent: Donald W. Arnold, AICP Collier County Planning Services 2800 North Horseshoe Drive Naples, Fl 33942 GEOGRAPHIC LOCATION: The subject property is located within the Hideaway Beach PUD, which is located in the northwestern portion of Marco Island, and is more specifically described as Blocks 1 and 2 , Hideaway Beach, Plat Book 12 , Pages 80-85 . (see location map on following page) . REQUESTED ACTION: Staff is requesting an amendment to the minimum principal and accessory structure building setbacks for beachfront lots in order to more specifically indicate building setbacks in relation to the established Building Control Line (BCL) and Erosion Control Line (ECL) . The amendment will establish principal and accessory building setbacks at a minimum of 30' and 20 ' respectively landward of the Erosion Control Line. Further, staff is proposing that property owners be required to retain or revegetate the dune area to a depth of 10 ' landward of the Erosion Control Line. PURPOSE/DESCRIPTION OF REQUEST: The Erosion Control Line, established in conjunction with the beach renourishment effort, was not in effect at the date of adoption of the Hideaway Beach PUD. Consequently, the introduction of this new line of private land ownership landward of the original property lines greatly impacts the developability of several building lots. Building setback requirements were not i / \ o fC� '� `17\< ' 'i� %. 41 ‘ '-''' '\'\\-//://:..//' '''/-7---\--, H,/!1 )\\\'' ,,N / /II), (r- �1 � `.I / v-c / v 2 , i ��e f 40 0 `- ✓�0 �A lot 01 41 et T:S Ol:O.. / g (-, 5 P:` I _r' l � ;4 r7^ f7 \ \ \ ..,_ • ,_,=--) ,t-i\\. 1 af1H - \ 0. l-'. L,/,' e „..,/- , , „,________, x , — \ \___rs \ L./ — 7/ \‘ /---- 0 I ,(1-- , -\n '7---___) uS o > 5; sl i) o 7 �I _ r �iI nom% g i,\ _,_7----_- '4-_ �" i2 2 �� reflective of this line' s impact on property ownership and development potential on individual beachfront building lots, resulting in the necessity to modify the original 50' minimum building setback. In consideration of the 50' building setback from the Erosion Control Line, staff is aware that of the 13 developed (or under development) beachfront homes within Blocks 1 and 2 , Hideaway Beach, 11 are in non-compliance with the 50' building setback requirement. By establishing new building setbacks as the more restrictive of the original Hideaway Beach building control line or 30' and 20' landward of the Erosion Control Line, all non- conformities are eliminated with the single exception of the structure located on Lot 8 , Block 2 . SURROUNDING LAND USE AND ZONING: There are 29 beachfront lots within the Hideaway Beach PUD affected by the Erosion Control Line. Currently 13 single-family homes are constructed or are under construction. All beachfront lots except for the clubhouse tract are intended for single-family construction. GROWTH MANAGEMENT PLAN CONSISTENCY: By virtue as an existing and developed PUD, Hideaway Beach is consistent with the County's Growth Management Plan. Primarily, objectives and policies of the Conservation and Coastal Management Element of the Growth Management Plan are applicable to this PUD amendment. The proposed reduction in principal and accessory structure setback requirements for beachfront lots does not violate any objective or policy of the Coastal and Conservation Element of the Comprehensive Growth Management Plan. It is the opinion of reviewing staff that the proposed setback reduction will actually place building structures more landward than originally intended under the Hideaway Beach PUD, due to the measurement of the setback from the newly established Erosion Control Line as opposed to the mean high water line; thereby, reducing any potential beach impacts. Objective 11. 4 of the GMP supports the protection of developed coastal barriers and shorelines, and the restoration of the natural functions of coastal barriers and affected beaches and dunes. It is staff's opinion that the proposed building setback reduction will not result in heightened beach erosion as revegetation/retention of dune-type vegetation is proposed between the Erosion Control Line and any accessory or principal structure. This requirement is consistent with Policies 11.4 . 4 , 11. 4 . 5 and 11 . 4 . 6 which promote dune restoration by requiring the planting of native vegetation as landscaping on beach and dune systems. The proposed amendment is also consistent with Objective 11. 6 of the Conservation and Coastal Management Element of the GMP which 2 required the adoption of a Coastal Barrier and Beach System Management Program to address procedures for the management of all developed and undeveloped County jurisdiction beaches, dunes and coastal barriers. This program was adopted and is implemented through Divisions 3 . 12 , Coastal Zone Management; 3 . 9 , Vegetation Removal, Protection and Preservation; 3 . 10, Sea Turtle Protection; and 3 . 14 , Vehicle on the Beach Regulations of the Land Development Code. The proposed 30' and 20' setback requirements will allow individual property owners to comply with these land development regulations during site development. HISTORIC/ARCHAEOLOGICAL IMPACT: The subject PUD is outside an area of historical and archaeological probability as referenced on the official Collier County Probability Map. Therefore, no Historical/ Archaeological Survey and Assessment is required. EVALUATION FOR ENVIRONMENTAL, TRANSPORTATION AND INFRASTRUCTURE: The proposed amendment has no impact on transportation or infrastructure considerations. Because of numerous beach system issues raised by outside counsel, County staff sought an independent environmental assessment, which was conducted by a local marine and environmental consulting firm. A copy of their analysis is attached to this staff report. County Environmental review staff have reviewed the proposed amendment with respect to applicable Growth Management Plan and Land Development Code requirements and are supportive, subject to retention or re-establishment of a dune vegetation area a minimum 10' in depth between the Erosion Control Line and any structure. One expressed concern by environmental review staff concerns the location of existing vegetation with respect to the Erosion Control Line and the proposed 20' /30' setback. Staff has determined that on at least 4 building lots, a 20' accessory structure setback would permit a structure to be built at the existing vegetation line. There is no question that the existing vegetation represents stability of the shoreline and a stabilizing effect to upland property owners; however, due to the dynamics of the wave and river currents in this area, the vegetation line does not necessarily equate to erosion control. However, it should be noted that the originally platted building control line would have permitted structures to be built approximately 20 ' to 40' seaward of the existing vegetation line. While a best possible condition may be to contain development inside the line of existing vegetation, a setback to this location was never intended in the Hideaway Beach PUD. Staff has included in the proposed amendment a requirement to plant or retain a minimum 10' wide area between the Erosion Control Line and any 3 structure. The survivability of replanted vegetation seaward of the existing vegetation line may rely in part on whether continued beach raking to the vegetation line will occur. Site visits indicate that pioneer plant species are emerging up to the point of beach raking. The proposed amendment has no affect on the County's Sea Turtle Protection Ordinance, as this ordinance regulates the timing of construction and establishes lighting standards for development during sea turtle nesting season. ANALYSIS: Sections 2 . 7 . 2 . 5 and 2 .7 . 3 . 2 . 5 of the Land Development Code relate to the required findings of the Planning Commission in support of a recommendation to the Board of County Commissioners. The findings are applicable to new property zoning actions and are not rational relative to an amendment to an established PUD. However, as part of staff's analysis of the proposed amendment, findings relative to environmental impacts and changing .beach conditions will be discussed. Historical Perspective: The Hideaway Beach PUD was originally adopted by the Collier County Board of Commissioners as Ordinance 79-68 . The original PUD established special building setback requirements for lots abutting the beach. Lots fronting the Gulf of Mexico were subject to locally adopted Coastal Construction Line setback requirements. For those beachfront lots fronting Big Marco Pass (Marco River) , a building control line was platted, which established the principal building setback line from the beach. This building control line varied between 50' and 100' as measured from the Mean High Water Line. The PUD did make provisions for certain accessory structures to be located seaward of this building control line. In early 1986, staff brought to the Board of Commissioner's attention concern over the issuance of building permits for beachfront lots due to the extensive beach erosion along Hideaway Beach. The Board of Commissioners placed a temporary building moratorium on Hideaway Beach in order to address the extent of beach erosion. The BCC lifted the moratorium after one month and directed staff to issue building permits on a case-by-case basis but to prepare a PUD amendment establishing a minimum 50' building setback from the eroded shoreline. This PUD amendment was not carried forward by staff in 1986 and building permits have continually been issued on a case-by-case basis for lots fronting the Marco River in Hideaway Beach. 4 In an effort to address the beach erosion problem, the County and State initiated the beach renourishment program in 1990 . The Erosion Control Line was established as part of the renourishment effort to reflect the mean high water line at that time. The establishment of the ECL is also significant in that it also established a new property line between properties owned by the State and upland property owners. The newly established property lines also require a new point from which to measure applicable building setbacks. The landward extent of this newly established property line has become a critical issue, as new property lines in some cases were established 50' to 70' landward of the previously determined property lines (mean high water line) . Significance of 50' Building Setback From Property Line: By staff's interpretation, the current Hideaway Beach PUD requires a minimum 50' building setback from the rear property line for beachfront lots. The official record makes no indication or justification for the establishment of this 50' setback in the original PUD, Ordinance 79-68 . For the purposes of the Y`ecord Hideaway Beach plat, the property line was the 1978 mean high water line. Again, no justification for the 50' setback as opposed to a 40' or 60' setback was documented in the record for the Hideaway Beach PUD. Again, the original rear property line was the Mean High Water Line, and the Erosion Control Line did not come into effect until 1991. Chapter 161. 052 (1) , F. S. , "Coastal Construction and Excavation; Regulation" , establishes a minimum 50' building setback from the mean high water line. However, this provision provides for the exclusion of properties fronting on a pass, river or inlet, which would include Hideaway Beach. Chapter 161. 053 (11) , F. S. , "Coastal Construction and Excavation; Regulation on County Basis" , further provides for the exclusion from the State's 50' setback requirement by stating that where coastal construction control lines and/or coastal construction zoning and building codes have been established, the provisions of Chapter 161. 052 (1) shall be superseded. Physical Land Changes: As discussed previously, Hideaway Beach has previously experienced severe beach erosion, resulting in a beach renourishment effort in 1990 . The renourishment effort, as regulated in Chapter 161, F. S. , required the County to adopt an Erosion Control Line. This erosion line became the new property line, thereby, moving the self imposed Hideaway Beach Building Control Line outside the new property boundaries in some cases. This is true for Lots 13-17 in Block 1. Approximately 6 lots in Block 2 now have their Building Control Line within 10' of the Erosion Control Line. 5 It is staff's opinion that such changing conditions relative to property lines and applicable building setbacks which have been established based on these property lines warrant revision, especially due to the State's establishment of a new fixed property boundary. Vegetation Preservation: The retention or re-establishment of vegetation for beachfront properties helps to stabilize the adjacent beach by offering protection from wind and wave action. This area further provides habitat for various upland and marine wildlife. In 1974 , Collier County adopted Ordinances 74-8 and 74-11, which established requirements for the protection of beach dune vegetation and restricted motorized vehicle operation on the beach. These ordinances have since been incorporated into the County's Land Development Code. In part, the Code requires that no structure may be located or vegetation disturbed within 10' of the dune line. Hideaway Beach has no clearly marked vegetation line, as the depth of vegetation varies on each lot. An examination of survey information provided with building permit records for homes along Hideaway Beach indicates that the seaward line of vegetation has been identified and structures placed a minimum 10' landward of this line accordingly in order to retain or replant dune vegetation to Code standards. However, several northern lots in Hideaway Beach had their building control lines established seaward of the vegetation line. The applicability of the County's dune preservation requirements for lots abutting the Marco River is also questionable, as the beach area may not technically function as a dune due to the nature of river current influences and shoreline geologic characteristics. The attached environmental consultant report discusses this issue in greater detail. The proposed setback reduction will permit the continued retention or replanting of vegetation, which furthers policies of the County's Comprehensive Growth Management Plan. Further, staff has proposed the addition of definitive language to the PUD, effecting this specification for dune restoration. Again, with the exception of the 3 northernmost lots in Hideaway Beach, the existing line of vegetation should remain uninterrupted. The Hideaway Beach is a mechanically maintained beach. That is, the Hideaway Beach Association rakes the sand to the high tide line which restricts any new vegetation growth or migration of vegetation seaward of its current position. Replanting native dune vegetation landward of the Erosion Control Line will help to stabilize and counter the effects of beach raking. 6 STAFF FINDINGS: Necessity of Amendment: As evidenced by review of surveys of all properties abutting Hideaway Beach, 11 of 13 built structures do not currently comply with the 50' rear setback requirement. This condition has been created in part by the establishment of a new property line (Erosion Control Line) landward of the originally platted lot lines and building control line in conjunction with the beach renourishment project. In addition to the creation of non-conforming structures, 8 undeveloped building lots will have extremely limited building envelopes with continued application of a 50' building setback from the Erosion Control Line. The average home in Hideaway Beach is approximately 6, 000 square feet. The required building depth necessary to support a similarly sized structure and accessory pool is 100' . A 50' setback will not permit this size and type of structure to be constructed on the 8 undeveloped lots. Originally, the self-imposed Hideaway Beach building control line for lots abutting Big Marco Pass was set at either 50' or 100' from the 1978 shoreline. By the establishment of this line, the five northernmost lots in Hideaway Beach were intended to permit construction closer to the beach than those lots further to the south on Hideaway Beach. The proposed amendment to establish the building setbacks at the more restrictive of the existing building control line or 30' and 20' landward of the Erosion Control Line remedies all non- conformities with one single exception. Further, application of the proposed building setbacks will result in structures being located further from the mean high water line than required under the original PUD. Building Control Line Variations: The self-imposed Hideaway Beach building control line currently varies from 50' to 100' in depth from the Erosion Control Line. The building control line on Lots 14-17 of Block 1 was originally platted at 50 ' from the shoreline (Mean High Water Line) . Beginning on Lot 13 and continuing to the south along Hideaway Beach, the building control line increased to 70' and then to 100' . The effect of this situation is that beginning with Lot 13 and continuing to the north, structures could be constructed 50' seaward of other homes along Hideaway Beach. Again, this originally platted building line is now on State owned property for Lots 13-17 , Block 1. The proposed amendment, while reducing the required setback from the Erosion Control Line for 12 lots, would result in greater 7 building setbacks for accessory or principal structures from the Mean High Water Line than originally contemplated in the Hideaway Beach PUD. This increase in setback from the Mean High Water Line in some cases is 70 ' . Vegetation Line: The existing vegetation line which is beneficial in helping to protect and preserve the beach varies from site to site. A building setback line a minimum of 20' from the Erosion Control Line would permit each property owner to establish a 20' wide vegetative buffer between any accessory structure, which is 10' greater than the County's dune preservation standards require. The Hideaway Beach is a maintained beach. The beach is raked daily to the Erosion Control line, which reduces the potential for vegetation encroachment and increases erosion potential. Re-establishment of a vegetative buffer could assist in the long-term stabilization of the beach. Environmental staff has concluded that the 20' accessory setback may not permit the retention of a minimum 10 ' wide vegetative buffer on the 3 northernmost building lots . A minimum setback of 30' will permit the retention of a 10' wide existing vegetation strip. However, the original building control line permitted structures seaward of the vegetation line by some 20'-30' . Setback Consistency: The subject lots on Hideaway Beach average between 12 , 000 and 15 , 000 square feet in size. This standard is similar to straight RSF-2 zoning district requirements. The required rear setback for RSF-2 zoned property is 30' for a principal structure and 10' for accessory structures. The proposed setbacks in Hideaway Beach will meet or exceed the typical setback requirements for similarly sized single family homesites. Storm Surge Vulnerability: Based on modeling conducted by the Collier County Emergency Management Department, any type of land- falling storm event greater than a tropical storm will result in seawater covering developed portions of Hideaway Beach to depths of 4 . 8 ' to 18 . 1' . Ground elevations for beach front lots in Hideaway Beach are approximately 5'NGVD. A reduction in building setbacks will result in no greater flood depths or storm surge impacts to surrounding properties. Beach Setback Options: In attempting to formulate amended language for the Hideaway Beach PUD which would adequately balance concerns with developability of building lots and potential environmental impacts to the existing beach system, staff contemplated several viable options. One option was to adopt a staggered building line, which would have required a maximum setback from the Erosion Control Line of 50' 8 for lots in the central portion of Hideaway Beach, then reduced by some standard increment to a minimum of 20' at the extremities of Hideaway Beach. Staff initially rejected this option as staff could not reach a consensus on the appropriate increment to be applied. A second option would have involved a relocation of a portion of the private road servicing the beachfront lots. By moving the road surface to the East, within existing right-of-way, structures could have been constructed closer to the existing right-of-way line, while allowing the existing 50' rear setback to remain. This could have resulted in no reduction in building area; however, this option would not have aided affected building lots on the southern portion of Hideaway Beach. Further, this option was considered cost prohibitive, without full cooperation from the Hideaway Beach Association. A third option involved reducing front yard building setbacks in order to allow a greater building setback from the beach. A reduction of the 25' front yard setback requirement to a figure less than 20' could not be supported by staff due to concerns over adequate stacking between front-loaded garages and the adjacent right-of-way. An additional consideration would be the visual appearance of a relatively large multi-story residential structure in close proximity to the road surface. Another option, which would further an argument for preservation of an existing vegetation line, would establish a minimum building setback at 30' from the Erosion Control Line. A minimum setback to this location would permit the retention of a 10' to 20' strip of existing vegetation on the northernmost lots. A 30' minimum setback would likely restrict the ability of a homeowner to construct typical beach accessory structures such as a swimming pool and pool deck on the affected building lots. STAFF RECOMMENDATION: That the Collier County Planning Commission forward petition PUD-80-20 (5) to the Board of Zoning Appeals with a recommendation of approval. PREPARED By: ''. � (\\ DONALD W. ARNOLD, AICP DATE PLANNING SERVICES DIRECTOR REVIE ED BY: 7 7// 3 Az 5-- , INCENT A. CAUTERO, DATE COMMUNITY DEVELOPMENT SERVICES ADMINISTRATOR 9 Petition Number: PUD-80-20 (5) Staff Report for the June 15 , 1995 CCPC meeting. NOTE: This Petition has been scheduled for the August 8 , 1995 Board of County Commissioner meeting. COLLIER COUNTY PLANNING COMMISSION: RUSSELL A. PRIDDY, V E-CHAIRMAN 10 ORDINANCE 95- AN ORDINANCE AMENDING ORDINANCE NUMBER 92-i1, HIDEAWAY BEACH PLANNED UNIT DEVELOPMENT, AMENDING SECTION 4.04.0 MINIMUM SEBACKS, BY ESTABLISHING THE MINIMUM PRINCIPAL AND ACCESSORY BUILDING SETBACK REQUIREMENTS FOR LOTS ABUTTING THE BEACH ALONG BIG MARCO PASS AS 30' AND 20' RESPECTIVELY, AS MEASURED FROM THE EROSION CONTROL LINE, OR SUCH OTHER SETBACK REQUIREMENT AS MAY BE ESTABLISHED BY THE BOARD OF COUNTY CO.•M^.ISSIONERS, FOR PROPERTY LOCATED IN PART OF SECTIONS 5, 6 AND 7, TOWNSHIP 52 SOUTH, RANGE 26 EAST, COLLIER COUNTY, FLORIDA, AND BY PROVIDING AN EFFECTIVE DATE. WHEREAS, the Collier County Board of Co^,nissioners has directed staff to amend the building setbacks for beachfront lots within the Hideaway Beach PUD by amending Ordinance 92-11, and; NOW, THEREFORE, BE IT ORDAINED BY THE BOARD OF COUNTY COMMISSIONERS OF COLLIER COUNTY, FLORIDA; SECTION ONE: Ordinance Number 92-11, Subsection 4.04.04D.2. , Lots Abutting Beach, shall be amended to read as follows: 2. Lots Abutting Beach: A beach setback line and/or Coastal Construction setback line has been established for the protection of the hone owner as located on the record plat. An Erosion Control Line has also been established in conjunction with beach renourishment, which reflects the seaward extent of private property ownership. _-._3 lina oa_k3 sothac:: lino. .-c_cmzcrl c t_-c...0 ro (a::oopt rho__ c_......."."._ e lina -_s c_r__-'y c_t ___d) can _--_and a e-.-_ ._-." ^' to..ord a"__ w afar, e:ccp Phor o _troh c.-."-= ion swing � z hooch, So= - r--r lot b. _.__f c' "-- - and _ = _:__bac.. a. Structures 1. Principal structures may be constucted to the Building Control Line or 30' landward of the Erosion Control Line, whichever is the more restrictive. Words underlined are additions; Words ctruo'.: through are deletions. -1- 2. Accessory structures may be constucted a maximum of 50' seaward of the Building Control Line, however, in no case shall the structure be constructed within 20' of the Erosion Control Line. 3. Roof overhangs may extend a maximum of 5' into the required setback. b. Dune Vegetation Dune vegetation shall be retained and/or replanted to a minimum death of 10' in the area between the Erosion Control Line and any accessory structure. SECTION TWO: This ordinance shall become effective upon filing with the Department of State. PASSED AND DULY ADOPTED by the Board of County Commissioners of Collier County, Florida this day of , 1995. ATTEST: BOARD OF COUNTY COMMISSIONERS DWIGHT E. BROCK, Clerk COLLIER COUNTY, FLORIDA BY: BETTYE J. MATTHEWS, CHAIRMAN APPROVED AS TO FORM AND LEGAL SUFFICIENCY MARJORIE M. STUDENT ASSISTANT COUNTY ATTORNEY PUD-S0-20(5) ORDINANCE HIDEAWAY BEACH/wa Words underlined are additions; Words struck through are deletions. -2-