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HomeMy WebLinkAbout1998-03-03; City Council; NS-446; CMC 21.95/.53.230 amends - Hillside Ord amendment5. /I e e =% 1 2 3 4 5 6 7 8 9 10 11 12 1 ORDINANCE NO. NS-446 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA AMENDING TITLE 21, CHAPTERS 21 45 AND 21 53, SECTION 21 53.230 OF THE CARLSBAD MUNICIPAL CODE TO STREAMLINE THE HILLSIDE DEVELOPMENT PERMIT PROCESS, CLARIFY AND SIMPLIFY THE HILLSIDE DEVELOPMENT CHAPTER TO MAKE‘ IT MORE USER FRIENDLY, AND ADD NEW DEVELOPMENT STANDARDS TO THE HILLSIDE DEVELOPMENT CHAPTER TO ADDRESS ORDINANCE ISSUE AREAS. CASE NO.: ZCA 96-04 CASE NAME: HILLSIDE ORDINANCE AMENDMENT The City Council of the City of Carlsbad, California does ordain as follows: i SECTION I: That Title 21, Chapter 21,95 of the Carlsbad Municir om &a $ E h l3 rfUU repealed and reenacted to read as follows: dtSK owg zwmg “CHAPTER 21.95 94nS 15 608 $055 14 KUZL3 HILLSIDE DEVELOPMENT REGULATIONS >-I2 6>22 02” - 16 k? t y 4 17 60 Sections: Q0-I 18 21.95.010 Purpose and intent. 21.95.020 Definitions. 19 20 21 22 23 24 25 21.95.030 Applicability of hillside development permit. 21.95.040 Exemptions from hillside development permit. 21.95.050 Amendments to hillside development permits. 21.95.060 Application. 21.95.080 Appeals. 21.95.090 Required findings. 21.95.1 00 Minimum development of hillside lands. 21.95.1 10 Hillside mapping procedures. 21.95.120 Hillside development and design standards. 21.95.130 Exclusions. 21.95.140 Modifications to the development and design standards. 21.95.070 Review process. i 26 27 Space/Conservation Elements of the Carlsbad General Plan; 28 The purposes and intent of this Chapter are to: 21.95.01 0 Purpose and intent. A. Implement the goals and objectives of the Land Use 1 II .- * !I 0 0 9m mw? &E& an8 ow: m> iLLU <OgP mg,,z lr5>g $;sz nu OZ-IO “U%O E:? zC% zwm <=-I Go 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 B. Assure hillside conditions are properly identified and inc into the planning process; C. Preserve and/or enhance the aesthetic qualities of naturl and manufactures slopes by designing projects which relate to the slope of minimizing the amount of project grading, and incorporating contour gr; manufactures slopes which are located in highly visible public locations; D. Assure that the alteration of natural hillsides will be dc environmentally sensitive manner whereby lagoons and riparian ecosysten protected from increased erosion and no substantial impacts to natural resou wildlife habitats or native vegetation areas will occur. 21.95.020 Definitions. The following definitions are established: A. Whenever the following terms are used in this Chapter, have the meaning established by this section: 1. ‘Collector street” means any street with a minimum ri width of 60 feet which intersects with a Circulation Element Road and prov primary or secondary access to a residential or non-residential project. result in earth forms which resemble natural terrain characteristics. Hori; vertical curve variations should be used for slope banks. 2. “Contour grading” means a grading concept dc 3. “Development” means grade, erect or construct. 4. “Downhill Perimeter Slope” means a slope located pad or gently sloping area (gradient is less than 10%) of a single lot and the PI 5. “Grade” means to excavate or fill or any combinatio that is at a lower level than the pad or gently sloping area of the lot. 6. “Manufactured slope” means a man-made slope wholly or partially of either cut or fill material. 7. “Natural slope” means a slope which is not manufac 9. “Slope” means ground that forms a natural or artific 8. “Project” means any proposal for “development”. IO. “Total Graded Area” means all areas of project gr: on-site and off-site) which are necessary to enable the achievement of the proj 11. “Uphill Perimeter Slope” means a slope located bd pad or gently sloping area (gradient is less than 10%) of a single lot and a p located at a higher level than the pad or gently sloping area of the lot. 22 23 24 25 26 27 21.95.030 Applicability Of Hillside Development Permit A. No person shall grade, or erect, or construct into or on top of a I has a gradient of fifteen percent (15%) or more and an elevation differential c fifteen (1 5) feet without first obtaining a Hillside Development Permit pursl Chapter. B. Any application for a Hillside Development Permit which wi complete prior to the effective date of the ordinance reenacting this Chapter, ~ subject to the amended provisions of this Chapter but shall be processed an or disapproved pursuant to the ordinance superseded by this ordinance. 28 2 II e e 9m mu? 0us an8 iUC3 $055 lyt5a: 0002 2;ss OZJ? “Kc40 ;3& >JZ ZW(0 F22 p2 a02 00 - 1 21 .Q5.040 Exemptions From Hillside Develmment Permit Section 21.95.120 of this Chapter and the City’s Hillside Development ar 3 obtain a Hillside Development Permit, provided that the development corn 2 A. Notwithstanding the provisions of Section 21.95.030, the followin{ Guidelines: zoned lot. alteration or building encroachment) of or upon any manufactured slope with €j of 40% or greater and an elevational difference (height) of 15 feet or greater 7 been previously graded consistent with an authorized grading permit. 3. The development (trenching, utility construction and bac 8 underground utility systems. 9 comply with Section 21.95.120 and the City’s Hillside Development Guideli 4 2. On a single lot, the additional development (i.e.; regrad 5 I. The development of one single family dwelling unit on a re B. Any development exempted by 21.95.040(A) above, which 10 obtain a Hillside Development Permit or Hillside Development Permit A pursuant to this Chapter. Permit prior to the effective date of this ordinance is exempted from the provisi 12 Chapter, provided that such permit or approval has not expired or is not revoked, and the development is in accordance with the existing Hillside De l3 Permit and related approvals. 11 C. Any project that has received final approval of a Hillside De 14 15 16 17 18 19 20 21 22 23 24 25 21.95.050 Amendments To Hillside Development Permits A. An amendment to a Hillside Development Permit shall be proce: same manner as an original application for a Hillside Development Permit. B. Unless exempted by Section 21.95.040, a Hillside Developml Amendment shall be required for any portion of a project which has Development Permit that is proposed for redesign and otherwise requires Development Permit per Section 21.95.030. 21 -95.060 Application Application for a Hillside Development Permit shall be made in accop the procedures set forth in this Section. A. An application for a Hillside Development Permit may bl the record owner or owners of the property affected or the authorized agent 0‘ or owners. The application shall be filed with the Planning Director upon form by the Director. The application shall be accompanied by adequate plans, L for detailed review pursuant to this Chapter and demonstrate compliance VI Mapping Procedures in Section 21.95.1 10, a legal description of the propc other materials and information specified by the Director. B. At the time of filing the application, the applicant s processing fee in an amount specified by City Council resolution. 26 27 concurrently with any other development permits required by Titles 1 I, 18, 28 A. Hillside Development Permit - An application for a Hillside D1 21.95.070 Review Process Permit or Hillside Development Permit Amendment shall be processed an( 3 %- I1 0 0 1 2 3 4 5 6 7 8 9 10 11 12 oa SLUE 23& am8 JUW% $055 &$E g%lL 0 E:; a01 1U-a a2.22 zwo(J OZJ - uu%o p2 - 00 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 I this code. The same decisionmaking body or official which has the authorit) approve, conditionally approve or deny the other development permits requir project shall have the authority to finally approve, conditionally approve or deny Development Permit. Amendments to Hillside Permits shall be acted on by decision making body that approved the original Hillside Permit and any s( Hillside Permit Amendments. B. Exemptions - Development satisfying the Hillside Developme Exemptions, set forth in Section 21.95.040(A), shall be evaluated for compli Section 21.95.120 and the Hillside Development and Design Guidelines throug grading plan andlor building plan review processes. 21.95.080 Appeals A. Hillside Development Permits - The decision of the final decisic body or official is final and effective ten calendar days after the adoption of the or written decision, unless within such ten-day period the applicant or interested person files a written appeal utilizing the same appeal procedure aF the other permits which are processed concurrently with the Hillside De Permit. If no other discretionary permits are being processed concurrent1 Hillside Development Permit, then the appeal procedures contained in Section shall apply. B. Decisions regarding Hillside Development Permit Exemptions, reviewed through the grading plan and/or building plan review processes, appealed to the City Council utilizing the same appeal procedure applicable permits andlor building permits. 21.95.090 Required Findinas A. No hillside development permit shall be approved unless thl making body or official finds that: 1. Undevelopable areas of the project, pursuant to 1 21.53.230(b) of this Code, have been properly identified; 2. The project complies with the Purpose and Intent prc Section 21.95.01 0 of this Chapter. 3. The project complies with Section 21.95.120 of this Ch Section 21.95.140 if a modification to the Development and Design St approved. 4. The project design substantially conforms to th Development Guidelines manual. 21.95.1 00 Minimum Development Of Hillside Lands The provisions of this Chapter shall be applied so as to: A, Not preclude a reasonable use of a legal parcel whic B. Not preclude the efficient and safe provision of public C. Allow development of at least one single family dwellil hillside conditions as regulated by this Chapter; services to any legal parcel; and parcel described in subsection A. 4 1 2 3 4 5 6 7 8 9 10 11 Om SW? (33m 5UO $055 o->g ZdZ 9 “nu I ai OZJO “K%O I?:; p% a08 ow2 <>ma zuv) 402 BO 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 0 0 21.95.1 IO Hillside Mappinq Procedures A slope analysis and slope profiles shall be illustrated on a constraints shall accompany all development submittals which propose grading or devel1 slopes which have a gradient of fifteen percent or more and have an elevation 1 greater than fifteen feet. A. Slope Analysis. The slope analysis shall identify the acrc natural and manufactured slopes within each of the following slope categories. 1. 0 - less than 15% slopes 3. 25 - 40% slopes and 4. Slopes greater than 40% 2. 15 - less than 25% slopes a. Percentage of slope is determined by: Vertical Distance ~ (Contour interval) Horizontal Distance x IO0 = % Slope (Distance between contour intervals) B. Slope Profiles. A minimum of three slope profiles (SI sections) shall be included with the submittal of the slope analysis on the ( map. Slope profiles shall: 1. Be drawn at the same scale and indexed or ke: constraints map, grading or preliminary grading plan and project site map; 2. Show both existing and proposed topography, stru surface infrastructure. Proposed topography, structures and infrastructurc drawn with a solid heavy line. Existing topography, structures and infrastructu drawn with a thin or dashed line; 3. Include the slope profile for at least one hundred fc of the project site boundary or adjacent public street; 4. Be drawn along those locations of the project site n a. The greatest alteration of the existing top b. The most intense or bulky development is c. The site is most visible from surrounding Ian( 5. Two of the slope profiles shall be roughly parall other and roughly perpendicular to existing contour lines. The remaining SI shall be roughly at a forty-five degree angle to the other slope profiles a contour lines. C. Assurance of Accurate Hillside Mapping. Both the slol and slope profiles shall be stamped and signed by either a registered architect, civil engineer or land surveyor indicating the datum, source ar topographic data used in the slope analysis and slope profiles, and attesting that the slope analysis and slope profiles have been accurately calculated ani consistent with this section. D. Development which is exempt per Section 21.95.040 c proposed, and 1 5 I II .- om I?? KKd J0W8 <a8 $055 kk5a: 00oB 2;$2 zwo0 02” - “Kzo p= 0 3 Qm,? JLLO >JZ E:? 40-1 - e 0 1 necessary to assess project compliance with the Hillside Ordinance. 2 section except in cases where the Planning Director determines that hillside n per Section 21.95.130 is generally exempt from the hillside mapping requireme 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 21.95.120 Hillside DeveloDment And Desian - Standards The provisions of this Section shall apply to all projects that propose erect or construct into or on top of a natural slope or manufactured slope wt gradient of fifteen percent (15%) or more and an elevation differential greater tl (1 5) feet. A. Coastal Zone Hillside Development Regulations 1. All development on natural slopes of twenty-five ~ greater within the coastal zone shall comply with the requirements of Chapters 21.203 of the Carlsbad Municipal Code and the slope protection policies of the Local Coastal Program segment. Additionally, all hillside development pursuant to this Chapter shall be consistent with all applicable provisions and the certified Local Coastal Program(s) and shall not result in significant adver! to coastal resources. B. Development of Natural Slopes of Over 40% Gradient 1. Natural slopes which have all of the following cha shall be undevelopable: a. A gradient of greater than 40%; and b. An elevation differential of greater than 15 fel c. A minimum area of 10,000 square feet; and d. The slope comprises a prominent land form f 2. Projects which propose the development of natL defined in Subsection 21.95.120(B)(I) above shall nevertheless be allowed, project qualifies as an exclusion or obtains a modification, pursuant tc C. Development of Manufactured Slopes of Over 40% Gradk I. Manufactured slopes which have a gradient of gt 40% and an elevation differential of greater than 15 feet shall be subject to th development standards. 21.95,130 and 21,95.140, respectively. a. Development of Uphill Perimeter Slopes. (i) The following types of development an uphill perimeter manufactured slope shall be limited to a maximum of 6 veri measured from the existing grade at the toe of slope: (a) Main building(s); (b) Accessory buildings; and (c) Retaining Walls. (ii) Decks may be constructed upon perimeter manufactured slope up to the required building setback(s) of the 25 11 *One’ b. Development of Downhill Perimeter Slopes 26 (i) For non-residential projects only, th types of development over a .downhill perimeter manufactured slope shall be 27 maximum of 6 vertical feet as measured from the existing grade at the top of s 28 (b) Retaining Walls. (a) Decks; and 6 e e 1 2 3 4 5 6 7 8 (ii) Deck surface areas shall be allowed to the same point that a 6 foot vertical retaining wall would be permitted. (iii) No main or accessory building may over the top/edge of a Downhill Perimeter Slope. c. The manufactured slope standards, within tt- do not apply to manufactured slopes which are not located along perimeter pro1 (including intervening manufactured slopes between split level pads which are I a single lot). D. Volume of Grading 1. The volume of earth moved for cuts and fills 2. The relative acceptability of hillside grading voluml minimized. determined by the following: 9 10 11 12 I??. 13 Erg AUUE a00 D sug 2055 14 +g 9 82“ 15 AUU JZ a:>.m$ zuv) ““90 002 kom GO oZJ? 16 <a1 E25 17 18 19 20 21 22 23 24 25 26 27 28 - - - - Cubic Yards of Cut or Fill and Fill Area (in acres) Hillside Grading Volume Grading per Acre of Cut Relative Sensitivity of 0 -7,999 cubic yards/acre Acceptable 8,000 - 10,000 cubic Potentially acceptable yards/acre > 10,000 cubic yards/acre Unacceptable 3. The methodology for determining the volumes of b and fill in cubic yards shall be calculated as follows. A grading and prelimin; plan, shall be prepared and shall include: the cut or fill volumes noted for eacl cut or fill and the total volume of cut and fill for the project. The larger volume cut or total fill volumes divided by the total graded area (in acres) shall equal 1 of hillside grading for the project. 4. Applications proposing grading volumes which are acceptable (eight thousand to ten thousand cubic yards/acre of cut or fill) SI preliminary grading plan, submit for review specific written findings justifying t for the amount of grading, subject to the approval of the Planning Directc 5. Applications proposing grading volumes v unacceptable (greater than ten thousand cubic yards/acre of cut or fill) shall only if they qualify as an exclusion or modification pursuant to Section 21 .! 21.95.140 of this Chapter respectively. Engineer. E. Slope Height. 1. Manufactured slopes shall not be greater than fol 2. Slope Height Exclusions. See Section 21.95.’ in height. Chapter. F. Contour Grading. 7 I/ 0 e II Om 32 =La Ow% 2055 etsg 9 OntL I ai OZJ? ““90 &A$ %E$ >JZ <>ma ZUV) E:? p; - a01 0 1 1. All manufactured slopes which are greater than tv feet in height and two hundred (200) feet in length and which are located adja 2 3 are substantially visible from a Circulation Element road, collector street o projects shall be designed to vary slope gradients between 50% (21 slope 4 2. Contour graded slopes that are developed in non-I public open space area shall be contour graded. 33% (3:l slope ratio). 5 G. Screening Manufactured Slopes. 1. All manufactured slopes shall be landscaped cons 6 7 the City’s Landscape Manual. architectural guidelines included within the City’s Hillside Development Guidelin 8 1. Hillside and hilltop structures shall be consisteni H. Hillside and Hilltop Architecture. I. Slope Edge Building Setbacks (pursuant to this Chapter). 9 1. Slope edge building setbacks shall be sufficient tc or significantly reduce views of vertical building forms which would k lo of the underlying zone, all main and accessory buildings that are developed 11 incompatible with hillside landforms. Notwithstanding the building setback re( and/or pads created on downhill perimeter slopes of greater than fifteen (* 12 height shall be setback so that the building does not intrude into a .7 foot hori foot vertical imaginary diagonal plane that is measured from the edge of sll 13 building. For all buildings which are subject to this slope edge building setback a profile of the diagonal plane shall be submitted with all other development l4 requirements. 15 2. Building setbacks pursuant to this Chapter do not a1 a. Slopes which are less than 15 feet in height; 16 b. the intervening slopes of split-level pads located on a single lot, but do apply to the edge of slope of the lowest pad; of residential lots: and 17 c. downhill slopes which are located along the 18 d. substandard residential lots where the tc 19 slope setback standards would preclude a reasonable use of the property. 3. If a Downhill Perimeter Slope is regraded (filled) 20 with Subsection 21.95.120(C) of this Chapter, and a vertical retaining structc then the required building setback shall be measured from the edge of s 21 existed prior to regrading (filling). 4. Fencing proposed along a slope edge should be 22 design which does not visually extend the height of the slope. Exceptil 23 provision may include, but are not limited to, noise attenuation walls, priva 24 J. Roadway Design. 25 Hillside Development Guidelines Manual. 26 27 Development Guidelines. security walls. 1. Hillside roadway design shall be consistent witt- K. Hillside Drainage. 1. Hillside drainage shall be consistent with the Cil 28 8 I( .. e 0 om SW? j;;% m> &z& <08 z035 kk"8 :;$z OnL zwm" CKZO cc1% >_rz 02" - E55 ao_t 00 - II 1 Standards of Section 21.95.120: 2 21.95.1 30 Exclusions A. The following are excluded from the Hillside Development ar 3 I. Hillside areas where a Circulation Element roadway or t street must be located provided that the proposed alignment(s) are envirc 2. Grading volumes, slope heights and graded areas which 2 4 preferred and comply with all other City standards. 5 associated with Circulation Element roadways or collector streets, provide( proposed alignment(s) are environmentally preferred and comply with all 6 standard.s. 7 3. Hillside areas that have unusual geotechnical or soil conc necessitate corrective work that may require significant amounts of grading. 21.95.140 Modifications To The Development And Desiqn Standards Hillside Development and Design Standards of Section 21.95.120 if it find lo proposed development complies with the Purpose and Intent provisions 1 1 1 21.95.010 and makes one or more of the following findings: 1. The proposed modification will result in significantly n 12 space or undisturbed area than would a strict adherence to the requirements 21.95.120. 13 15 would a strict adherence to the requirements of Section 21.95.120. l4 manufactured slopes which are more aesthetically pleasing and natural appe; 2. The proposed modification will result in the develc B. Any request for a modification to the development and design st this Chapter shall be accompanied by two preliminary grading plans. One 16 illustrate how a site would be developed with a strict adherence to the requi Section 21.95.120. The second set shall illustrate the extent and type of the l7 modification. This plan shall also be accompanied by any other documentati 18 by the decisionmaking body to determine that the proposed modifications will superior project with less adverse environmental impacts. cubic yards/acre of cut or fill, or a manufactured slope in excess of forty ( 20 height, the applicant shall submit both written and graphic exhibits to justify thc grading to the satisfaction of the decisionmaking body or official. In addition, 21 mitigation and landscaping plan shall be submitted as part of the application. 22 shall illustrate the mitigation measures and landscaping utilized to screen thc grading. 23 D. Development on land designated for nonresidential develop comply with all requirements of this Chapter except Sections 21.95.1 24 21.95.120(E). Any nonresidential project proposing grading in excess of te; cubic yards per acre or creating slopes in excess of forty (40) feet in height SI 25 both written and graphic exhibits to justify the proposed grading to the satisfa 26 decisionmaking body. " 27 SECTION II: That Subsection (b) of Section 21.53.230 of th 28 8 9 A. The decisionmaking body or official may approve a modificat 19 C. If a modification is proposed to allow grading in excess of ter 9 I1 I/ 0 II 1 * Municipal Code is amended to read as follows: density shall be determined based on the number of dwelling units per develol 4 3 “21 53.230 Residential Densitv Calculations, Residential Dev Restrictions on Open Space and Environmentallv Sensitive Lands (a) For the purposes of Titles 20 and 21 of this code, 5 6 7 8 9 10 11 om &zm a08 ow2 $055 & z fB OZAO ?%%a SWE m> 5U, 9 “09 a ai E23 a01 as^ p5 G” 12 13 14 15 16 17 18 19 20 21 22 23 of property. shall be excluded from density calculation (b) The following lands are considered to be undevelo (1 ) Beaches; (2) Permanent bodies of water; (3) Floodways; (4) Natural slopes with an inclination of greater percent except as permitted pursuant to Section 21.95.120(B) of this Code; (5) Significant wetlands; (6) Significant riparian or woodland habitats; (7) Land subject to major power transmission ea! (8) Land upon which other significant env features as determined by the environmental review process for a project are IC (9) Railroad track beds. (c) No residential development shall occur on any prof in subsection (b). Subject to the provisions of Chapters 21.33 and 21.1 I( council may permit limited development of such property if, when consic property as a whole, the prohibition against development would con unconstitutional deprivation of property. The planning commission or cii whichever is the final decisionmaking body for a residential development n accessory facilities, including, but not limited to, recreational facilities, view i vehicular parking areas, to be located in floodplains (subject to Chapter 21 .I ’ land subject to major power transmission easements. (d) Residential development on slopes with an inc twenty-five to forty percent, inclusive, shall be designed to minimize the grading necessary to accommodate the project. For projects within the coasta grading provisions of the Carlsbad local coastal program shall apply.’’ EFFECTIVE DATE: This ordinance shall be effective thirty da adoption, and the City Clerk shall certify to the adoption of this ordinance and be published at least once in a publication of general circulation in the City c 24 25 within fifteen days after its adoption, except in the Coastal Zone where i 26 effective upon certification by the California Coastal Commission. EFFECTIVE DATE: This ordinance shall be effective thirty da 27 // adoption, and the City Clerk shall certify the adoption of this ordinance and ca 28 11 10 II t I .* e e 1 4 3 within fifteen days after its adoption. 2 published at least once in a newspaper of general circulation in the City of INTRODUCED AND FIRST READ at a regular meeting of the Car ll Council on the 17th day Of February , 1998, and thereafter 5 6 PASSED AND ADOPTED at a regular meeting of the City COUI 7 to wit: 8 City of Carlsbad on the 3rd day of March , 1998, by the follo 9 AYES: Council Members Lewis, Nygaard, Kulchin and Hall 10 11 NOES: None ABSENT: Council Member Finnila D 2uJg zg$ p3$ &S" 9 on8 I qz I&$.. 02-12 a~qo pa UoOEi :c is 51 iU, ow2 19 20 21 22 23 24 25 26 27 28 12 13 14 15 16 17 18 APPROVED AS TO FORM AND LEGALITY n L RONALD R. BALL, Q. L City Attorney 3- 9-7 8. / ATTEST: ALETHA L. RAUTENKRANZ, City Ck (SEAL) 11