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Cluster Development(1) (2) (3) (4) (5) (6) A. (1) (2) B. C. D. City of Northampton, MA Wednesday, July 31, 2019 Chapter 350. Zoning § 350-10.5. Open space or cluster residential development. For residential development in a clustered concept (a concept whereby the residences are clustered on a portion of the lot, thereby leaving more of the parcel undeveloped and in open space, the purpose of which is to: a) preserve the rural character of the community by maximizing and preserving expanses of open space in their natural state; b) provide a buffer between developments; and c) serve a functional relationship to each of the lots in the development in those districts for which such an option is allowed by the Table of Use Regulations,[1] the following rules and conditions shall apply: A site plan, in accordance with this section and § 350-11, Site Plan Approval, shall be prepared by a registered land surveyor or registered professional engineer. In addition to requirements of § 350-11, the plans shall show the following: Two-foot finished contours on the tract and within 50 feet thereof. The location and acreage of areas to be devoted to specific uses. Existing and proposed streets, parking areas, drainage and utility systems, including sewer and water, streetlighting, landscaping, fire alarm systems, sidewalks, and easements, and natural features. Proposed clustered residential density of development and gross density of development in terms of square feet per family. The proposed location of parks, open spaces and other public or community uses. Such other information as may be required by the Planning Board. For those proposed developments which will also involve the subdivision of land and/or require the Planning Board's approval under the Subdivision Control Law: A definitive subdivision plan shall be filed with the special permit application in lieu of the site plan (Said plan shall include all of the information required in Subsection A above.); and The definitive subdivision plan shall be filed with the Planning Board for approval under the Subdivision Control Law at the same time that the special permit is filed. The tract for which an open space residential development is proposed shall be in a single ownership or control at the time of application, and shall be comprised of at least four contiguous acres, except in URC and URB Districts it shall be at least three acres. The use and density requirements for open space residential development (cluster) are listed in the Table of Use Regulations and the Table of Dimensional and Density Regulations in § 350-6.2. [2] The minimum lot area in the table is the land area required for each residential building exclusive of streets, water area, open space, and common land. When a development is served by both an on-site water supply (well) and an on-site sewage disposal system (septic tank), then (1) (2) [2] (1) (a) (b) (c) (d) (2) E. the Board of Health approval of both water supply and sewage disposal system location is required. Each single-family, two-family and three-family structure shall be located on its own individual lot, except that for the purpose of this section one-family, two-family and three-family structures may be considered townhouses if they are either row houses attached side to side (not on top of each other), or if all homes are located on a single lot under common ownership. Multiple townhouses and multifamily structures may be located on one lot under common ownership. If multiple structures are placed on a single lot, there must be adequate provisions for internal circulation, including circulation of pedestrians and emergency and maintenance vehicles, and for the on-going maintenance of the circulation system. The total number of units shall be determined by Subsection E below. When the rear or side yard of an individual lot in the development, including a zero lot line lot, abuts a lot not in that development, then said rear yard and side yard building setbacks shall be equal to those required for a nonclustered lot in that zoning district. Editor's Note: These tables are included at the end of this chapter. Density. The maximum number of dwelling units in the development shall be computed by multiplying the total tract area, less proposed roadways and 90% of wetlands and floodplains, by the density shown below for the appropriate zone: Dwelling Units Per Acre RR 1.1 SR 1.5 URA 2.2 URB 4.4 URC 4.4 WSP 0.54, regardless of the underlying district All districts 0.54 if lots or development have both an on-site water supply (well) and an on-site sewage disposal system (septic tank), regardless of the underlying district The above densities are increased by up to 15% if: The percent of density bonus is no greater than the percent of dwelling units in the cluster that are affordable units. Affordable units are those which may be rented or purchased by households making 80% of median household income for Northampton, as calculated by the U.S. Department of Housing and Urban Development with adjustments for family size; and Deed and use restrictions, easements, or covenants, with a mechanism for adequate enforcement, are provided and approved by the Planning Board to ensure that units are affordable for a minimum of 99 years and that units can only be purchased by people whose income does not exceed 80% of median income; and Affordable units are geographically dispersed throughout the development; and The applicant provides all required information and paperwork and pays all required fees under the Massachusetts Local Initiative Program to allow the City to count these units as affordable units. (3) F. (1) (a) (b) (2) G. (1) (2) (3) (4) H. I. Common buildings, including shared mail facilities, recreation, dining, laundry, guest rooms, personal office space for residents of the cluster, shared and maintenance facilities, and retail or personal services not to exceed the lesser of 2% of the total gross floor area of the cluster or 4,000 square feet, may be allowed in a cluster, but are limited to common facilities which primarily serve the residents of the cluster but generally not outside paying guests and child- care facilities for residents and outside customers. Setbacks on common buildings must equal setbacks required for nonclustered lots in the subdivision. Common buildings are not considered dwelling units nor can they be credited to open space requirements. The dimensional requirements of § 350a et seq., Tables of Dimensional and Density Regulations, shall apply to common buildings. The proposal shall conform to the provisions of any and all applicable local, state and federal rules and regulations, including § 350-10.1 (special permits) of this chapter. Of the total tract area, at least 50% shall be set aside as common open space with no buildings allowed except for bathrooms required to serve the common open space. Of the 50% set aside for open space, no more than 25% shall be wetlands or floodplains (as defined in MGL c. 131, § 40, the Wetlands Protection Act, 310 CMR, and Chapter 337, Wetlands Protection, of the Code) nor have a slope of over 8%, except as permitted in Subsections H and I below, nor include any part of a detention/retention pond designed to hold water for up to a ten-year storm shall be set aside as common open space with no buildings allowed except for bathrooms required to serve the common space. In the event that more than 25% of the proposed open space falls into one of these categories above, any such additional land shall be subtracted from the total tract area for the purpose of calculating the required open space. This open space may include land donated to the City or other conservation organization under § 350-6.3 (Reduction of dimensional and density requirements), Subsection C, of this chapter and credited to the property being developed, provided that: The public has a right to enter the property for passive recreation; and The land was not credited to any other open space residential development nor to any other development or permit. The Planning Board shall allow land with slopes of up to 20% to qualify as open space if: A minimum of 0.1 acre per dwelling unit (based on maximum allowable dwelling units) of active recreational facilities (such as playing fields, playgrounds, tot-lots, walking trails, and picnic areas) are provided; and Said recreational facilities must, in the opinion of the Planning Board after consulting the Recreation Commission or the Conservation Commission (as appropriate), serve an important and unmet recreational need for the proposed project and for the area of the City in which they are located; and Said facilities must be built to a minimum of commonly accepted design standards and must be built in a manner to minimize future maintenance costs; and A right-of-way or fee title for at least 50% of said recreational facilities and for at least 50% of the open space must be offered to and accepted by the City or a nonprofit conservation land trust for park/conservation purposes. The Planning Board may require that only a right-of-way be transferred and that the developer or homeowners' association retain the responsibility to maintain the facilities. The Planning Board shall allow up to 25% of the open space requirements to be met off site but within 1/2 mile of the cluster site or up to 40% of the open space requirements to be met off site but within 1/4 mile of the cluster site if: (1) (2) (3) (4) J. (1) (2) (3) K. The off-site open space is, in the opinion of the Planning Board, easily and safely accessible from the cluster site by foot and without crossing any collector or major streets (except by tunnel or bridge); and The Northampton Conservation Commission or Recreation Commission (as appropriate) and the Planning Board finds that the off-site open space provides valuable open space to serve that part of the City; and A right-of-way or fee title is offered to and accepted by the City or a nonprofit conservation land trust for the off-site open space for park/conservation purposes; and For the purposes of figuring the open space required, the off-site open space shall be considered to be part of the total tract, and each acre of off-site open space shall be equivalent of 0.75 acres of on-site open space. A functional relationship shall exist between the common open space areas and the proposed residential clusters. Such common open space shall be restricted to open space, agricultural uses, recreational uses such as tot-lot, park, playground, playfield, golf course, or conservation area. Such common open space shall have suitable access to and from the development's street(s), and shall conform to the requirements of Chapter 290, Subdivision of Land, in effect at the time of application. Such common open space as required by this section shall be placed under a conservation restriction in accordance with the provisions of MGL c. 184, §§ 31-33, as amended. Such common land shall be either deeded to the City at no cost (but only with the consent of both the Planning Board and the City Council and the Conservation Commission or Recreation Commission, as appropriate) or shall be conveyed to a private nonprofit corporation, the principal purpose of which is conservation or preservation of open space or to an organization or legal entity established for the purpose of owning and maintaining such common land. Such organization shall be created by covenants running with the land, and such covenants shall be included with the submitted development plan and shall be subject to approval by the City Solicitor. Said covenants must be rerecorded every 30 years. Such corporation or organization shall not be dissolved, nor shall it dispose of any common open space by sale or otherwise (except to an organization conceived and organized to own and maintain the common open space) without first offering to dedicate the same to the City. Covenants creating such organization shall provide that in the event the organization established to own and maintain common open space, or any successor organization, shall at any time after establishment of the development fail to maintain the common open space in reasonable order and condition in accordance with the development plan, the Planning Board may serve notice in writing upon such organization or upon the residents of the development setting forth the manner in which the organization has failed to maintain the common open space in reasonable condition, shall contain a demand that such deficiencies of maintenance be cured within 30 days thereof, and shall state the date and place of a public hearing thereon which shall be held within 20 days of the notice. If the deficiencies set forth in the original notice or in the modifications thereof shall not be cured within said 30 days or any extension thereof, the Planning Board, in order to preserve the taxable values of the properties within the development and to prevent the common open space from becoming a public nuisance, may enter upon said common open space and maintain the same until the organization theretofore responsible for the maintenance of the common open space demonstrates, to the Planning Board's approval, that they can adequately maintain the common open space. The covenants creating such organization shall further provide that the cost of such maintenance, including all administrative costs, by the City shall be assessed against the properties within the development that have a right of enjoyment of the common open space, and shall become a charge of said properties, and such charge shall be paid by the owners of said properties within 30 days after receipt of a statement therefor. (4) L. M. [1] A. B. C. D. E. The covenants shall provide that each dwelling unit shall have an equal say in determining the affairs of the organization; that costs shall be assessed equally to each dwelling unit; and that the organization shall be retained in the control of the developer no longer than until a majority of dwelling units are conveyed to permanent owners. Where appropriate, more than one separate and distinct organization may be created. Separate organizations may not be created, however, where one might be too small (in terms of the number of lots included) to operate efficiently, or where one has a responsibility for too large or costly (to maintain) a parcel of open space in proportion to that under the responsibility of other organizations within the same development. Zero lot line (ZLL) developments are permitted within open space residential development, in accordance with the Table of Dimensional and Density Regulations and § 350-10.14, Zero lot line developments. A portion of a new project may be developed as an open space residential development, provided that portion of the project meets the requirements set forth in this section. Editor's Note: The Table of Use Regulations is included at the end of this chapter. § 350-11.1. Purpose. The purpose of this section is to provide a comprehensive review procedure for construction projects which will have significant impacts on the City, herein defined, to ensure compliance with the goals and objectives of the City, and the provisions of this chapter, to minimize adverse impacts of such development, and to promote development which is harmonious with surrounding areas; in particular to assure proper drainage, safe access, safe and efficient vehicular and pedestrian movement, adequate parking and loading spaces, public convenience and safety and adequate consideration of abutting land owners. § 350-11.2. Projects requiring site plan approval as intermediate projects. No building permit, zoning permit, or special permit shall be issued for the following intermediate projects prior to the review and approval of a site plan in accordance with this section: Projects which involve new construction or additions of between 2,000 square feet and 5,000 square feet of gross floor area (excluding single-family dwellings, expansions in the CB District that do not involve footprint expansions, and projects used exclusively for agriculture, horticulture or floriculture). Projects for which this chapter requires the provision of six to nine additional parking places. Projects which require a special permit and which are not otherwise intermediate or major projects except that, notwithstanding any of the requirements of § 350-10.12, the following projects do not require site plan approval: accessory apartments (§§ 350-5.2 and 350-10.10), accessory structures (§§ 350-5.2 and 350-6.7), accessory uses (§§ 350-5.2 and 350-5.3), historic association and nonprofit museum (§§ 350-5.2), home business (§ 350-5.2 and 350-10.12) and signs (§ 350-7) of this chapter. Any project that is requesting a provision of the zoning that is allowed only with site plan approval and which is not otherwise a major project. Planned Village (PV) projects which require a site plan review in accordance with § 350-10.15 and are not otherwise major projects. F. A. B. C. D. E. F. G. [1] A. B. Medical marijuana dispensaries. § 350-11.3. Projects requiring site plan approval as major projects. No building permit, zoning permit, or special permit shall be issued for the following major projects prior to the review and approval of a site plan in accordance with this section: Projects which involve new construction or additions of 5,000 square feet or more of gross floor area (excluding expansions in the CB District that do not involve footprint expansions). Commercial parking lots and parking garages, including municipal garages. Except for the CBD, establishments selling foods prepared on premises where consumption is primarily off the premises and retail establishments selling principally convenience goods. Automobile service stations. Projects for which this chapter requires 10 or more additional parking spaces over the zoning requirements for the previous use. Rural residential incentive development projects. Planned business park projects. § 350-11.4. Requirements. These requirements are superimposed over any other requirements of this Zoning Ordinance. The Building Commissioner may not issue any building or zoning permits for any intermediate or major projects until the site plan has been approved by the Planning Board through a simple majority vote of the members present. The site plan process shall be conducted by the Planning Board in conformance with the filing, review and public hearing requirements for a special permit, except in the case of alternative energy research and development (R&D) and manufacturing facilities, as defined in the Green Communities Act.[1] For alternative energy R&D and/or manufacturing, review periods are guaranteed not to exceed one year from the date of initial application to the date of final Board action. Said applications shall be reviewed within 45 days, and the applicants will be notified of what additional submissions are necessary to meet this one-year final action deadline. The Planning Board shall use the criteria of § 350-11.6 for approving or disapproving the site plan. As with special permits, any appeal of a site plan decision by the Planning Board shall be made in accordance with MGL c. 40A, § 17. All site plan decisions must be recorded at the Registry of Deeds. In addition, the plans approved as part of the site plan decision shall be recorded with the decision in the form and type of pages as determined by the Planning Board. Editor's Note: See Acts of 2008, Ch. 169. § 350-11.5. Procedures. Application for site plan approval shall be made to the City Clerk and the Office of Planning and Development on forms provided for that purpose, accompanied by the required fee. The Planning Board shall adopt specific rules governing paper and electronic application and the number of copies. The application for site plan approval shall be accompanied by a site plan, drawings and supporting documentation in a form specified by rules and regulations which shall show, among other data, the following: (1) (a) (b) (c) (d) (e) (f) (g) (h) [1] [2] [a] [b] [c] [d] [3] (i) (2) Locus plan; Site plan(s) at a scale of one inch equals 40 feet (or greater) showing the following: Name and address of the owner and the developer, name of the project, and date and scale of plans; The location and boundaries of the lot, adjacent streets or ways, the location and owners names of all adjacent properties and those within 300 feet of the property line, and all zoning district boundaries; Existing and proposed structures, including setbacks from property lines, structure elevations, and all exterior entrances and exits. Elevation plans of all exterior facades of proposed structures are required for towers and strongly encouraged for other structures; Present and proposed use of the land and buildings; Existing and proposed topography at two-foot contour intervals, showing wetlands, streams, surface water bodies, drainage swales, floodplains, and unique natural land features (for intermediate projects the permit granting authority may accept generalized topography instead of requiring contour lines); Location of parking and loading areas, public and private ways, driveways, walkways, access and egress points, including proposed surfacing; Location and description of all stormwater drainage facilities (including stormwater detention facilities, water quality structures, drainage calculations where applicable, and drainage easements), potential water quality impacts, planned best management practices (BMPs) during the construction phase, and the planned BMPs to be used to manage runoff created after development. For major projects, applicants shall incorporate green infrastructure and low-impact design to the extent feasible. For major projects that do not trigger a separate stormwater permit, applicants shall submit information on all analysis conducted to incorporate low-impact design and green infrastructure. Major projects that do not trigger separate stormwater permitting must provide a proposed inspection schedule for the project during construction and upon completion. Inspections shall be performed by a qualified professional as confirmed by the Planning Board; Location and description of public and private utilities, sewage disposal facilities and water supply; Existing and proposed landscaping: Inventory of any significant trees over 20 inches DBH by an arborist which shall classify such trees in terms of location, species, size, health, long-term viability. Inventory of trees on abutting properties if the dripline of said trees crosses onto the subject parcel. Proposed landscaping shall include: Trees, with adequate protection detailed for existing trees to be saved in accordance with Northampton Tree List and Tree Planting Guidelines; Other plantings with the size and species; Stone walls; Buffers; [e] [f] [4] [5] (j) (k) (l) (m) (a) [1] [2] [3] [4] (b) (c) (d) (e) (3) Screening; Fencing. Landscape plans must be designed and stamped by a certified landscape architect or arborist. An adequate schedule for maintenance, during the first two years, must be specified on the plans. All trees where the dripline crosses the property and where trees are to be retained shall have tree protection zones clearly marked in accordance with Northampton Tree List and Tree Planting Guidelines. Plans shall show tabulation of on- and off-site significant tree replacement in accordance with § 350-12.3 when applicable. Location, dimensions, height, color, illumination of existing and proposed signs; Provisions for refuse removal, with facilities for screening of refuse when appropriate; An erosion control plan (for major projects only) and any other measures taken to protect natural resources and water supplies; A photometric plan showing conformance with § 350-12.2. Estimated daily and peak hour vehicle trips generated by the proposed use, traffic patterns for vehicles and pedestrians showing adequate access to and from the site, and adequate vehicular and pedestrian circulation within the site. In addition, major projects, as defined above, shall prepare a traffic impact statement including the following information: Traffic flow patterns at the site including entrances and egresses, loading and unloading areas, and curb cuts on site and within 100 feet of the site. A plan to minimize traffic safety impacts of the proposed project through such means as physical design and layout concepts, staggered employee work schedules, promoting use of public transit or van- or carpooling, or other appropriate means. For new commercial, office, and industrial buildings or uses over 10,000 square feet, this plan shall evaluate alternative mitigation methods to reduce traffic by 35%, including: Public transit, van- and car-pool incentive programs, including parking facilities and weather-protected transit shelters; Encouraging flexible hours and workweeks; Encouraging pedestrian and bicycle access to the site; Provision of integrated land uses, including on-site services, retail, and housing. A detailed assessment of the traffic safety impacts of the proposed project or use on the carrying capacity of any adjacent highway or road, including the projected number of motor vehicle trips to enter or depart from the site for daily-hour and peak-hour traffic levels, road capacities, and impacts on intersections. Said assessment may be based on the proposed mitigation [in the plan required by Subsection B(2) above]. An interior traffic and pedestrian circulation plan designed to minimize conflicts and safety problems. Safe and adequate pedestrian access, including provisions for sidewalks and/or bike paths to provide access to adjacent properties and adjacent residential neighborhoods, (4) C. D. A. (1) (2) B. as applicable, and between individual businesses within a development. Other information as may be necessary to determine compliance with the provisions of this chapter. Site plans submitted for major projects shall be prepared (and stamped) by a registered architect, landscape architect, or professional engineer. Upon written request, the Planning Board may, at its discretion, waive the submission by the applicant of any of the required information, provided that the applicant provides some written information on each of the items in Subsections B(3)(a), (b) and (c) above and explains why a waiver is appropriate. § 350-11.6. Approval criteria. In conducting the site plan approval, the Planning Board shall find that the following conditions are met: The requested use protects adjoining premises against seriously detrimental uses. If applicable, this shall include provision for surface water drainage, sound and sight buffers and preservation of views, light, and air; and The requested use will promote the convenience and safety of vehicular and pedestrian movement within the site and on adjacent streets, cycle tracks and bike paths, minimize traffic impacts on the streets and roads in the area. If applicable, this shall include considering the location of driveway openings in relation to traffic and adjacent streets, cross-access easements to abutting parcels, access by public safety vehicles, the arrangement of parking and loading spaces, connections to existing transit or likely future transit routes, and provisions for persons with disabilities; and: The Planning Board may allow reduced parking requirements in accordance with § 350-8.6, Shared parking. The project, including any concurrent road improvements, will not decrease the level of service (LOS) of all area City and state roads or intersections affected by the project below the existing conditions when the project is proposed and shall consider the incremental nature of development and cumulative impacts on the LOS. The project proponent must demonstrate that all cumulative and incremental traffic impacts have been mitigated. If those impacts are not mitigated, the Planning Board shall require in-lieu-of payments to fund a project's proportional share of necessary improvements to mitigate off-site traffic impacts, including provision of public transit and pedestrian or bicycle paths, in lieu of requiring off-site improvements. All in-lieu-of payments will be expended with the approval of the Mayor and City Council only after first being introduced for recommendation to the Transportation and Parking Commission, consistent with Planning Board conditions. In-lieu-of traffic mitigation payment shall be assessed by the Planning Board after a fact-based analysis of a specific project but shall not exceed that shown in the table below. Past experience has been that mitigation of all traffic impacts would be higher than the maximum amount allowed and so many projects are assessed the maximum allowed by the table. The Board may exempt residential projects whose traffic impacts are not greater than if they were developed as an as-of-right development without site plan approval and subdivision approval. Project Location Required Payment Any medical marijuana project regardless of the district (regardless of other entries below) $2,000 per peak trip CB, GB, EB, GI and OI Zoning Districts; PV District, except for medical and dental offices; and NB District, except for uses with gas pumps No mitigation (3) C. D. Project Location Required Payment M, URC, and URB Zoning Districts $1,000 per peak trip HB Zoning District; PV District for project for medical and dental offices; NB Districts for uses with gas pumps; BP Districts with nonexempt uses; and BP, SR, URA, SC and RR Zoning Districts for sites (1) within 500 feet of a transit stop, or (2) within 500 feet of an asphalt or concrete City off-road rail trail or bicycle path, or (3) abutting a sidewalk that extends without a break from the project to either downtown Northampton or downtown Florence $2,000 per peak trip Any other site in SR, URA, SC, and RR Zoning Districts and any other BP residential use $3,000 per peak trip Notes Peak trips are the number of one-way trips into or out of the project during the project's peak traffic demand, typically but not always weekday afternoon “rush hour.” Peak- hour trips are calculated based on the table below or, if (and only if) the table does not address a project, the Institute of Traffic Engineers' (ITE) trip generation data. The Planning Board retains the ability to use alternative calculations if clear evidence to the contrary is provided (for example, considering lower traffic generation from pass-by trips, late-night shift changes, and mixed-use projects). Project Type Peak-Hour Trips Residential 1/dwelling unit Congregate and assisted living 0.6/dwelling unit Grocery, personal services, retail and auto sales, medical marijuana dispensary 12/1,000 square feet Medical marijuana growing and processing facilities 1/1,000 square feet Restaurants and bars 20/1,000 square feet Gas, convenience stores, fast-food restaurants 100/1,000 square feet Medical and dental offices 5/1,000 square feet Other offices 2/1,000 square feet Industrial, manufacturing, tradesman, professional (but not medical and dental) offices, and municipal uses Exempt Warehouses 0.6/1,000 square feet Schools, day-cares, churches, libraries, etc.10/1,000 square feet Hotel/Motel 0.5/room Access by nonmotorized means must be accommodated with facilities such as bike racks, sidewalk connections from the building to the street, cycle tracks, and bike paths that are clearly delineated through materials and/or markings to distinguish the vehicular route from the nonvehicular route. The site will function harmoniously in relation to other structures and open spaces to the natural landscape, existing buildings and other community assets in the area as it relates to landscaping, drainage, sight lines, building orientation, massing, egress, and setbacks. Rear and/or side wall facades within 50 feet of a completed or planned section of a cycle track or bike path shall have features that invite pedestrian access from that side of the building; and The requested use will not overload, and will mitigate adverse impacts on, the City's resources, including the effect on the City's water supply and distribution system, sanitary and storm sewage collection and treatment systems, fire protection, streets and schools. The construction materials and methods for water lines, sanitary sewers, storm sewers, fire protection, sidewalks, private [1] E. (1) (a) (b) (c) (d) (e) (f) (2) (3) F. roads, and other infrastructure shall be those set forth in the Northampton Subdivision Regulations[1] (even for projects that are not part of a subdivision) unless the Planning Board finds that a different standard is more appropriate. Major projects that do not trigger separate stormwater permitting shall have conditions that stipulate when inspections shall be completed and submitted to the City. Annual reports, as necessary depending on the stormwater management system, shall be submitted to the City. Editor's Note: See Ch. 290, Subdivision of Land. The requested use meets any special regulations set forth in this chapter. Compliance with the following technical performance standards: Curb cuts onto streets shall be minimized. Access to businesses shall use common driveways, existing side streets, or loop service roads shared by adjacent lots when possible. More than one curb cut shall be permitted only when necessary to minimize traffic and safety impacts. Pedestrian, bicycle and vehicular traffic movement on site must be separated, to the extent possible, and sidewalks must be provided between businesses within a development and from public sidewalks, cycle tracks and bike paths. All projects shall include sidewalks and tree belts abutting the street, except where site topography or other limitations make them infeasible. In such cases where the sidewalk is infeasible, the developer shall install an equal number of feet of sidewalk and/or tree belt in another area of the community as deemed by the Planning Board or Office of Planning and Sustainability. All sidewalks shall meet the following standards: All internal and external sidewalks will be constructed of cement concrete. Sidewalks will be at least six feet in width in all commercial zoning districts and all industrial zoning districts. In all residential zoning districts, sidewalks shall be at least five feet in width. If gratings are located in walking surfaces, then they shall have spaces no greater than 1/2 inch wide in one direction. If gratings have elongated openings, then they shall be placed so that the long dimension is perpendicular to the dominant direction of travel. Ramps allowing access to the sidewalk and street by variously abled persons shall be required at the corner or within the curb area immediately adjacent to the sidewalk. For any new driveway, the portion of the driveway that crosses the sidewalk shall conform to the sidewalk requirements set forth herein, regardless of whether there is a sidewalk improvement extending along the balance of the frontage property, with sidewalks constructed with extra depth to withstand cars. The sidewalk cross slope of 1:50 should be maintained across the entire driveway. The driveway apron should be located in the tree belt between the pedestrian way and the roadway. Curb extensions may be used at any corner location, or at any mid-block location where there is a marked crosswalk, provided there is a parking lane into which the curb may be extended. They may include transit stops. Curb extensions must be designed so as not to impede bicycle traffic. Curbs may be extended into one or both streets at a corner. No obstructions or private use should occur in the curb extension. Major projects, except in the Central Business District, must be designed so there is no increase in peak flows from the one- or two- and ten-year Soil Conservation Service design storm from predevelopment conditions (the condition at the time a site plan approval is requested). Green infrastructure and low-impact design shall be incorporated to the extent feasible to ensure runoff is handled on site. At the very minimum, the runoff from up to a one- inch rain storm (first flush) shall be detained on site for an average of six hours. These (a) (b) (c) (4) (5) G. H. (1) (2) I. requirements shall not apply if the project will discharge into a City storm drain system that the Planning Board finds can accommodate the expected discharge with no adverse impacts. In addition, catch basins shall incorporate sumps of a minimum of four feet and, if they will remain privately owned, a gas trap. Medical marijuana manufacturing operations shall meet the following criteria: [Amended 6-20-2019 by Ord. No. 19.056] Building facades and property must be consistent with the character of the neighborhood, including such items as transparent storefront windows with a view into the interior of the building. Security measures must appear from outside of the building to be consistent with the character of the neighborhood. This does not create any restriction or compromise on security measures but does require that such measures be camouflaged to blend into the background. Buildings must incorporate both high-efficiency particulate air handlers with activated carbon filters and exhaust systems designed with vents that force the air at least 10 feet above the roofline of the building. Alternatively, other technology may be used upon finding by the Planning Board through site plan approval process that such other technology will, to the extent practicable, limit odors from marijuana in any place where the public or clients are present. No medical marijuana dispensary and/or treatment center shall be located within 200 feet of any elementary school, middle school, or high school; there are no other buffer limitations. For new buildings and additions, the applicant must show that the building is designed to accommodate solar power installation. This is met by showing that the roof design can support solar panels and that roof orientation, conduit and electrical service will be incorporated so that installation can easily be added either at the time of construction or at any point thereafter. Alternatively, the applicant may show the site is designed to accommodate solar with conduit to be located to accommodate the ground system. The Planning Board may waive this requirement for green roofs or if the applicant provides information to show that either building-mounted or ground-mounted systems are impracticable due to site constraints/orientation. (Reserved) (Reserved) Obscene displays; blocking or shading of windows. No signs, text, graphics, pictures, publications, videotapes, CDs, DVDs, movies, covers, merchandise or other objects, implements, items or advertising depicting or describing sexual conduct or sexual excitement as defined in MGL c. 272, § 31, shall be displayed in the windows or on any building or be visible to the public from the street, pedestrian sidewalks, walkways, or bike paths or from other areas outside such establishments. Further, windows may only be blocked or shaded by approval of the Planning Board through site plan approval.