A communication transmitted from Yi-An Huang, City Manager, relative to a revised Massachusetts Avenue zoning petition

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 1 Petition: To amend the Zoning Map and Articles 3.000, 17.000, and 19.000 of the Cambridge Zoning Ordinance as follows with the intent of establishing four three new zoning districts for the Cambridge Street corridor. Amendments to the Zoning Map. See attached Zoning Map and descriptive text. Amendments to Article 3.000. Amend Section 3.11 to read as follows: 3.11 For the purpose of this Ordinance, the City of Cambridge is hereby divided into fifty- four three classes of districts listed below in order of decreasing restrictiveness as follows: 1. Open Space District Public parks and recreation facilities and other public facilities 2. Residence C-1 District Multifamily dwellings 3. Residence C-1A District Multifamily dwellings 4. Residence C-2 District Multifamily dwellings 5. Residence C-2B District Multifamily dwellings 6. Residence C-2A District Multifamily dwellings 7. Residence C-3A District Multifamily dwellings and limited office 8. Residence C-3 District Multifamily dwellings 9. Residence C-3B District Multifamily dwellings 10. Office 1 District Business and professional office and multifamily dwellings (Apartment house, hotel, dormitory) 11. Office 2A District Business, research and professional offices, limited research oriented manufacturing 12. Office 2 District Business, research and professional offices, limited research oriented manufacturing 13. Office 3A District Business and professional offices and multifamily dwellings 14. Office 3 District Business and professional offices and multifamily dwellings 15. Business A-3 District Neighborhood business 16. Business A-1 District Local business 17. Business A-2 District Local business 18. Business A District Local and drive in retail business offices and multifamily dwellings 19. Business A-4 District Local business 20. Business A-5 District Local business and multifamily dwellings 21. Business C District General business, professional offices, multifamily dwellings. 22. Business B-1 District General business, business and professional offices, and multifamily dwellings 23. Business B-2 District General business, business and professional offices and multifamily dwellings 24. Business B District General business 25. Industry B-2 District Office, warehouse and light manufacturing 26. Industry A-1 District Limited impact business and industry

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 2 27. Industry B-1 District Heavy manufacturing, warehouses, and offices 28. Industry A-2 District Limited impact business and industry 29. Industry A District Warehouse, storage and light manufacturing 30. Special Business, Office and Industrial District 1 Various Uses governed by the requirements of Article 17.000 31. Special Business, Office and Industrial District 2 Various Uses governed by the requirements of Article 17.000 32. Special Business, Office and Industrial District 3 Various Uses governed by the requirements of Article 17.000 33. Special Business, Office and Industrial District 4 and 4A Various Uses governed by the requirements of Article 17.000 34. Special Business, Office and Industrial District 5 Various Uses governed by the requirements of Article 17.000 35. Special Business, Office and Industrial District 6 Various Uses governed by the requirements of Article 17.000 36. Special Business, Office and Industrial District 7 Various Uses governed by the requirements of Article 17.000 37. Special Business, Office and Industrial District 8 Various Uses governed by the requirements of Article 17.000 38. Special Business, Office and Industrial District 8A Various Uses governed by the requirements of Article 17.000 39. Special Business, Office and Industrial District 9 Various Uses governed by the requirements of Article 17.000 40. Special Business, Office and Industrial District 10(F) Various Uses governed by the requirements of Article 17.000 41. Special Business, Office and Industrial District 10(H) Various Uses governed by the requirements of Article 17.000 42. Special Business, Office and Industrial District 11 Various Uses governed by the requirements of Article 17.000 43. Special Business, Office and Industrial District 12 Various Uses governed by the requirements of Article 17.000 44. Special Business, Office and Industrial District 13 Various Uses governed by the requirements of Article 17.000 45. Special Business, Office and Industrial District 14 Various Uses governed by the requirements of Article 17.000 46. Special Business, Office and Industrial District 15 Various Uses governed by the requirements of Article 17.000 47. Cambridge Street-8 Various Uses governed by the requirements of Article 17.000 48. Cambridge Street-10 Various Uses governed by the requirements of Article 17.000 489. Cambridge Street-12 Various Uses governed by the requirements of Article 17.000 4950. Cambridge Street-15 Various Uses governed by the requirements of Article 17.000 50147. Mixed Use Development (MXD) District: Kendall Center Various uses governed by the requirements of Article 14.000 51248. Cambridgeport Revitalization Development District Various uses governed by the requirements of Article 15.000 52349. North Point Residence, Office and Business District Various uses governed by the requirements of Article 16.000 53450. Industry B District Heavy Industry

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 3 Amendments to Article 17.000. Create a new Section 17.700 to read as follows: 17.700 Cambridge Street Districts 17.701 Scope. This Section 17.700 regulates development within the Cambridge Street Districts (CAM-8, CAM-10, CAM-12, and CAM-15) as shown on the Zoning Map of the City of Cambridge, as amended. The regulations of this Section shall apply equally to all Cambridge Street Districts except where otherwise specified. 17.702 Purpose. The Cambridge Street Districts are meant to encourage patterns of development consistent with the vision of the Our Cambridge Street Planning Study (2023). This Section establishes the following goals for the Cambridge Street corridor: (a) Maintain established patterns of land use while allowing new infill development that complements existing buildings; (b) Encourage residential and mixed-use development while incentivizing additional density for development that includes active ground floor retail uses; (c) Promote a dynamic urban streetscape and an accessible public realm through building and site design, and; (d) Allow the production of a diverse mix of economically viable ground floor retail uses. 17.703 Use Regulations. 17.703.1 Permitted Uses. The following uses, as they are listed in Article 4.000 and otherwise defined in this Zoning Ordinance, shall be permitted as-of-right: (a) Residential Uses: All uses in Section 4.31.a through 4.31.i. (b) Tourist house (Section 4.31.1.a) only within the CAM-15 District. (c) Radio and television studio, Section 4.32.f. (d) Transportation Uses: Bus or railroad passenger station, Section 4.32.a, all uses in Section 4.32.k through 4.32.n. (e) Institutional Uses: All uses in Section 4.33 except Municipal service facility (Section 4.33.f.4) and Institutional use not listed in any other category (Section 4.33.h.4). (f) Office and Laboratory Uses: All uses in Section 4.34. (g) Retail or Consumer Service Establishments: All uses in Section 4.35 except Animal Services Facility (4.35.l) and Retail or Consumer Service Establishment not otherwise defined. A Craft Retail and Production Shop (4.35.b) shall be permitted as-of-right if it occupies no more than 2,500 square feet of Gross Floor Area, including storage areas, and does not involve the use of equipment that produces dust, fumes, odors, smoke, vapors, noise, vibration, flashing, light trespass, or glare outside of the premises.

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 4 (h) Outdoor Retail or Consumer Service Establishments: Open-Lot Retail Sales Establishment (Section 4.36.a) and Temporary Outdoor Retail or Consumer Service Use (Section 4.36.j). (i) Cannabis Delivery Operator Establishment (Section 4.37.o). 17.703.2 Special Permit Uses. The following additional uses, as they are listed in Article 4.000 and otherwise defined in this Zoning Ordinance, shall only be permitted upon the issuance of a special permit by the Planning Board: (a) Trailer Park or mobile home park, Section 4.31.j. (b) Tourist house (Section 4.31.1.a) where not permitted as-of-right as set forth in Section 17.703.1. (c) Hotel or motel, Section 4.31.1.b. (d) Transportation Uses: Automobile parking lot or parking garage for private passenger cars, Section 4.32.b – so long as not an accessory use, and no repairs, servicing, or sale of gasoline allowed, provided that the Building and Site Planning Standards of Section 17.705 below are met and that all other state and local laws applicable to parking facilities are met. (e) Utility Uses: All uses in Section 4.32.g.1 through 4.32.g.2. (f) Wind turbine Installation, Section 4.32.j. (g) Institutional Uses: Municipal service facility, Section 4.33.f.4, and Institutional use not listed in any other category, Section 4.33.h.4. (h) Retail or Consumer Service Establishments (Section 4.35), not otherwise permitted. (i) Outdoor Entertainment and Recreation Facility, Section 4.36.d. (j) Any other use permitted as-of-right or by special permit in a Business B zoning district, if the Planning Board finds that the use is compatible with permitted uses and supports the purpose of the Cambridge Street Districts. 17.703.3 Ground Story Active Uses. The following uses, as they are listed in Article 4.000 and otherwise defined in this Zoning Ordinance, shall be considered Active Uses for the purposes of this Section 17.700. (a) Institutional Uses: All uses in Section 4.33. (b) Office of a physician, dentist or other medical practitioner, Section 4.34.a. (c) Office of an accountant, attorney, or other non-medical professional person, Section 4.34.b. (d) Real Estate, insurance or other agency office, Section 4.34.c. (e) Retail or Consumer Service Establishments: All uses in Section 4.35. (f) Radio and television studio, Section 4.32.f. (g) Other uses upon the issuance of a special permit by the Planning Board if the Planning Board finds that the use serves the purpose of providing services to the

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 5 general public and promoting pedestrian activity along Cambridge Street, with necessary conditions to ensure those objectives are met. 17.704 Development Standards. 17.704.1 FAR Limitations. The maximum FAR devoted to non-residential uses shall be 1.0 except as listed below. There shall be no maximum FAR for residential uses or for Religious Purposes listed in Section 4.33.a. FAR limits shall be applied in accordance with Section 5.25.4. (a) The maximum FAR for Dormitory uses (Section 4.33.b.7), shall be 1.75. (b) The maximum FAR for Transient Accommodations (Section 4.31.1) and Institutional uses except Religious Purposes (Section 4.33 except 4.33.a) within a CAM-15 District shall be 1.75. 17.704.1.1 Ground Story GFA Exemption. Portions of the Ground Story of a building that are devoted to one or more of the following active non-residential uses, as they are listed in Article 4.000 and otherwise defined in this Zoning Ordinance, shall be exempted from FAR limitations upon granting of a special permit by the Planning Board: (a) Social or recreation center, Section 4.33.a.4. (b) Community Center, Section 4.33.e.2. (c) Public park, playground, or public recreation building, Section 4.33.f.5. (d) Municipal Library, Section 4.33.f.6. (e) Private library, museum, or noncommercial gallery, Section 4.33.h.2. (f) All Retail or Consumer Service Establishments listed in Section 4.35. 17.704.2 Building Height. Building height in feet above grade and Stories Above Grade shall be limited by the Table of Height Limitations below. The provisions of Section 5.23 shall govern the application of height limits. 17.704.2.1 Additional Height for Ground Story Active Uses. As set forth in the Table of Height Limitations, greater height shall be permitted for portions of buildings containing Residential Uses if the Ground Story is occupied by one or more Active Uses, as defined in Section 17.703.3, comprising at least 60% of the interior portion of the Ground Story that is within 50 feet of a Primary Street. 17.704.2.2 Inclusionary Housing. Building heights exceeding 6 stories above grade or 75 feet above grade shall only be permitted if portions of the building used as Residences comply with the Inclusionary Housing Requirements in Section 11.203 of this Zoning Ordinance, regardless of whether it exceeds the size threshold requiring compliance. 17.704.3 Table of Height Limitations.

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 6 CAM-8 CAM-10 CAM-12 CAM-15 Non-Residential Uses (Section 4.30 except 4.31 a-j., 4.33.b.7 & 4.33.a) 35 feet and 3 stories above grade 35 feet and 3 stories above grade 35 feet and 3 stories above grade 45 feet and 4 stories above grade Dormitory Uses (Section 4.33.b.7) 45 feet and 4 stories above grade 45 feet and 4 stories above grade 45 feet and 4 stories above grade 45 feet and 4 stories above grade Residential Uses (Section 4.31 a-j.) & Religious Purposes Uses (Section 4.33.a) 75 feet and 6 stories above grade 75 feet and 6 stories above grade 75 feet and 6 stories above grade 75 feet and 6 stories above grade Residential Uses with Ground Story Active Uses (Section 17.703.3) 100 feet and 8 stories above grade 120 feet and 10 stories above grade 145 feet and 12 stories above grade 175 feet and 15 stories above grade 17.705 Building and Site Plan Standards. 17.705.1 General Provisions. 17.705.1.1 Applicability. The standards of this Section 17.705 shall apply to new construction, including buildings and additions to buildings. Buildings in existence before the adoption of this Section do not need to be modified to meet the standards of this Section, but shall not be modified in a way that further violates the standards of this Section unless approved by special permit from the Planning Board. 17.705.1.2 Other Standards. The general development standards of Article 5.000 shall apply except as otherwise set forth in this Section 17.705. The applicable Sustainable Development standards in Article 22.000 shall be met. The standards of Section 19.50 shall not apply except as set forth in this Section. 17.705.1.3 Modifications. The Planning Board may approve modifications to the standards of this Section 17.705 by special permit upon finding that: (i) the criteria in Section 17.707.2 are met and (ii) such modifications respond to unique site-specific conditions that result in a design that is equally supportive of the purpose of the Cambridge Street Districts. Approved modifications shall be specifically enumerated in the special permit decision. 17.705.2 Site Plan Standards. 17.705.2.1 Street Types. For the purposes of this Section 17.700, there shall be Primary Streets and Secondary Streets as defined below: (a) Primary Streets shall include Cambridge Street, North First Street, Hampshire Street, Monsignor O’Brien Highway, and Prospect Street.

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 7 (b) Secondary Streets shall include all streets not identified as Primary Streets. 17.705.2.2 Open Space. Lots shall be subject to a minimum ratio of total open space to lot area as set forth in the table below. The application of open space requirements shall be governed by Section 5.22. Some lots shall have a minimum requirement for Publicly Beneficial Open Space or Public Open Space as set forth in the table below, expressed as a minimum ratio of open space to lot area but included within the total open space requirement. Such required Public Open Space or Publicly Beneficial Open Space shall be accessible for use by the general public during reasonable times of day for the purposes for which the space is designed. The intent of such Open Space shall be to provide small-scale neighborhood amenities such as pocket parks, plazas, playgrounds, and other similar uses. 17.705.2.3 Front Yards. Minimum required front yard setback distances are set forth in the table below. Such setback distances shall be measured in feet from front lot lines (or street lines). Different standards may apply based on the street type from which the setback is measured. 17.705.2.4 Side and Rear Yards. Minimum required side and rear yard setback distances are set forth in the table below. Such setback distances shall be measured in feet from side or rear lot lines. Different standards may apply based on whether or not the portion of the lot line from which the setback is measured is located within 85 feet of a front lot line abutting a Primary Street, measured perpendicularly from the front lot line. 17.705.2.5 Upper Story Setbacks. Minimum setback distances are set forth in the table below that apply to portions of buildings above a specified height above grade. Such setback distances shall be measured in feet horizontally from either the front lot line, varying by street type, or from a zoning district boundary adjoining a Residence district. Where development is impacted by the Flood Resilience Standards in Section 22.80, the heights at which upper story setbacks are required shall be adjusted according to the provisions of Section 5.23.2. 17.705.2.6 Yard Exceptions and Projections. In general, the yard provisions of Section 5.24 shall apply to yard setbacks but not to upper story setbacks. However, portions of buildings may project into a required front setback or upper story setback from a Primary Street, notwithstanding Paragraph 5.24.1(f), if the following limitations are met: (a) Projections shall not be allowed at or below the ground story. (b) Projections shall not extend more than 4 feet into the required setback. (c) Projections shall not occur over more than 50% of the total area of the façade facing a Primary Street. (d) In a CAM-10, CAM-12, or CAM-15 district, the Planning Board may approve additional, limited projections into a yard setback or upper story setback upon granting a special permit if it is found to provide spatial definition of larger or broader streets, parks, or squares or to emphasize significant locations such as

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 8 major street intersections, prominent bends in streets, and termina of major view corridors. 17.705.2.7 Upper Story Floorplates. Portions of buildings above a specified height shall have a maximum floorplate area in square feet as set forth in the table below. For the purpose of this Section, the floorplate above a specified height shall mean the Gross Floor Area of any contiguous story of the building located partially or completely above the specified height. A building may have multiple non- contiguous stories above the specified height so long as each contiguous story does not exceed the maximum floorplate area. Where development is impacted by the Flood Resilience Standards in Section 22.80, the heights at which floorplates are limited shall be adjusted according to the provisions of Section 5.23.2. 17.705.3 Table of Site Plan Standards. CAM-8 CAM-10 CAM-12 CAM-15 Minimum Open Space as a percentage of lot area Lots with no buildings more than 6 stories above grade none none none none Lots with a building 7 or more stories above grade 15% total 15% total 15% total 15% total Lots with a building 9 or more stories above grade N/A 15% total 5% public or publicly beneficial 15% total 10% public or publicly beneficial 15% total 10% public or publicly beneficial Minimum Yard Setbacks in feet Front, Primary Streets 4’ 4’ 4’ 4’ Front, Secondary Streets 2’ 2’ 2’ none Side or Rear, within 85 feet of a Primary Street none none none none Side or Rear, not within 85 feet of a Primary Street 5’ 5’ 5’ none Minimum Upper Story Setbacks in feet

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 9 CAM-8 CAM-10 CAM-12 CAM-15 Setback from Primary Street – Cambridge St, Hampshire St or Prospect St 14’ above 75’ 14’ above 75’ 34’ above 100’ 14’ above 75’ 44’ above 100’ 14’ above 75’ 44’ above 100’ Setback from Primary Street – Monsignor O’Brien Highway or North First St none 14’ above 100’ 14’ above 100’ 14’ above 100’ Setback from Secondary Street 12’ above 75’ 12’ above 75’ 12’ above 75’ 32’ above 100’ 10’ above 100’ Setback from Residence District Boundary 15’ above 75’ 15’ above 75’ 15’ above 75’ none Maximum Upper Story Floorplates in square feet Maximum floorplate No maximum 15,000 sf. above 100’ 15,000 sf. above 100’ 15,000 sf. above 100’ 17.705.4 Building and Site Design Standards. 17.705.4.1 Location of Uses. The standards for location of uses set forth in Section 19.53 of this Zoning Ordinance shall be met. 17.705.4.2 Maximum Building Length. A building footprint exceeding 200 feet in length, measured parallel to a street line, shall contain a massing recess extending back at least 15 feet in depth measured from and perpendicular to the front lot line and at least 15 feet in width measured parallel to the front lot line so that the maximum length of unbroken façade is 200 feet. 17.705.4.3 Front Yard Design. (a) The area directly between a front lot line and the principal wall plane of the building nearest to that front lot line shall consist of any combination of hardscaped walkways, landscaped areas, and usable spaces such as seating, benches, canopies, awnings, porches, patios accessible to pedestrians, or bicycle parking, and may contain elevated porches, walkways, stairs, and/or ramps to provide a transition from the sidewalk Grade to portions of the Ground Story that are elevated above grade. (b) Parking and circulation for automobiles shall not be permitted in a front yard with the exception of access drives to parking facilities located elsewhere on the lot, which shall be limited to a total of 30 feet of width for each 100 feet of lot frontage. 17.705.4.4 Overall Façade Transparency. At least 20% of the total area of building façades facing a public street or public open space shall consist of clear glass windows.

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 10 This figure shall be increased to 30% for non-residential portions of the building, if any. No minimum requirement shall be imposed for portions of buildings containing uses identified in Paragraph 19.50(2)(c). 17.705.4.5 Ground Story Façade Transparency. For the portion of the Ground Story façade facing a Primary Street, the following additional standards shall apply: (a) Where the Ground Story contains non-residential uses, the portion of the façade between 2 feet and 10 feet above the finished floor shall consist of at least 50% transparent glass windows. (b) There shall be no section of the façade more than 25 feet in length, measured parallel to the street, that does not contain at least one transparent window or pedestrian entryway. 17.705.4.6 Ground Story Finished Floor Grade. Ground Stories shall not have a finished floor below the mean Grade of the adjacent sidewalk on a Primary Street. Ground Stories containing only residential uses may be elevated no more than 4 feet above the mean Grade of the adjacent sidewalk or to the 1%-LTFE as described in the Flood Resilience Standards in Section 22.80 of this Zoning Ordinance, whichever is greater. Ground Stories containing non-residential uses may be elevated above the sidewalk grade no higher than the 1%-LTFE, where applicable. 17.705.4.7 Ground Story Height. The minimum height of a Ground Story shall be 15 feet, measured from the Grade of the adjacent sidewalk on a Primary Street to the finished floor of the second Story Above Grade. 17.705.4.8 Ground Story Entrances. Each use at the Ground Story shall have a pedestrian entrance directly from the public sidewalk of a Primary Street, or of a Secondary Street where the use does not have direct frontage onto a Primary Street. All pedestrian entrances shall be accessible by way of routes that are separated from parking areas or motor vehicle access drives. Where the Ground Story is elevated above the Grade of the existing sidewalk, access to Ground Story uses shall be provided from the sidewalk using exterior or interior ramps, stairs, lifts, or other means that meet accessibility standards. 17.705.4.9 Structured Parking Restrictions. (a) Structured parking in Stories Above Grade, whether as a principal or accessory use, shall not be permitted to have direct frontage on a Primary Street but shall be permitted if it is shielded from a Primary Street by a building or portion of a building containing principal non-residential or residential uses, pedestrian lobbies and common areas, or other areas devoted to non-vehicular use with a depth of at least 20 feet measured from the building façade to the above-grade parking facility in a direction perpendicular to the Primary Street. Driveway access shall be permitted as allowed in Section 17.704.4.3. (b) Structured parking in Stories Below Grade shall be permitted but must be fully screened from a Primary Street by an exterior wall wherever the story extends above the sidewalk grade.

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 11 (c) All permitted structured parking, where not fully enclosed within a building, shall be screened from view from adjacent public streets by fences, plantings, fabric, or similar decorative elements that are at least 50% opaque across the visible portion of the structured parking with the exception of vehicular entrances and exits. 17.705.4.10 Fences. Fences within a front, side, or rear yard shall meet the following standards: (a) No fence shall be made primarily of chain-link or wire. (b) Fences may be provided for the purpose of screening parking areas, driveways, or on-grade mechanical or electrical equipment but shall be less than 7 feet in height above grade and may be partially or fully opaque. Any opaque fence shall be reviewed by the Cambridge Department of Transportation to ensure that it does not compromise safety by impeding views for motor vehicle drivers. (c) Fences may be provided for the purpose of containing or protecting planted areas, including trees, as well as for delineating Private Open Space for the use of occupants of the lot, but may be no more than 30% opaque and may be no more than 4 feet in height above grade if located in a front yard. Fences may be partially or fully opaque and may be no more than 7 feet above grade if located in a side or rear yard. (d) Fences not meeting the standards or serving the purposes described in Paragraphs (a) through (c) above shall require a special permit from the Planning Board. 17.705.4.11 Street Tree Planting. New buildings containing 25,000 square feet of Gross Floor Area or more shall incorporate tree plantings on public sidewalks directly adjacent to the lot or otherwise needing to be rebuilt as part of the development to the extent feasible, subject to approval by the Department of Public Works in accordance with the Cambridge Urban Forest Master Plan. 17.705.4.12 Mechanical Equipment, Refuse Storage, and Loading Areas. The standards for location and screening set forth in Section 19.58 of this Zoning Ordinance shall be met. Electrical equipment whose location is mandated by a public utility is strongly discouraged from being located on a Primary Street; however, where it is necessary, it shall be screened from public view by fences, plantings, or similar materials to the greatest extent allowable by the utility’s standards.   17.706 Transportation. 17.706.1 Off-Street Parking, Bicycle Parking, and Loading. The off-street parking, bicycle parking, and loading requirements of the Business A district as set forth in Article 6.000 of the Zoning Ordinance shall apply equally to the Cambridge Street Districts, except as set forth below. 17.706.2 Waiver of Off-Street Loading Requirements. The Planning Board may, upon issuing a special permit, waive any requirements for the amount, location, and design of loading facilities, and may permit loading facilities to be shared across various uses and lots within the Cambridge Street Districts, upon finding that such waiver would reduce the negative impacts of loading activities on pedestrian

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 12 access to the public sidewalk. The special permit may include conditions to ensure this criterion is met. 17.707 Development Review. 17.707.1 Review Procedures. The Cambridge Street Districts shall be considered Areas of Special Planning Concern. The development review procedures shall apply as set forth in Article 19.000 of the Zoning Ordinance, except that GFA dedicated to Active Uses (Section 17.703.3) shall not be counted when calculating the Project Review Special Permit Threshold set forth in Section 19.23. 17.707.2 Special Permit Criteria. In granting a special permit under this Section or any other special permit granted by the Planning Board, the Planning Board shall find that the following criteria are met in addition to the criteria in Section 10.43 of the Zoning Ordinance and other criteria specific to the special permit being sought: (a) The proposal supports the purpose of the Cambridge Street Districts as described in Section 17.702. (b) Development plans are in general conformance with the vision and goals of the Our Cambridge Street Planning Study (2023) and the Citywide Urban Design Objectives in Section 19.30 of this Zoning Ordinance and are consistent with the Citywide Urban Design Guidelines (2025) and Design Guidelines for Multifamily Housing (2025) as applicable. The Planning Board may grant special permits for development that deviates from specific design guidelines if the Board finds that the proposal, on the whole, advances the intent of those guidelines. Amendments to Article 19.000. Amend the first paragraph Section 19.23 to read as follows (with no changes to subsequent paragraphs): 19.23 Special Permit Threshold. In all applicable zoning districts, a Project Review Special Permit shall be required for new building construction or change of use (pursuant to Subsection 19.23.1 below) where a Table I threshold has been met, on a lot or combination of contiguous lots held in common ownership at any time after September 15, 2000. In a Business A, Business A-1, or Business A-2 district, or a Cambridge Street District (CAM-8, CAM-10, CAM-12, or CAM-15), a Project Review Special Permit shall also be required for new building construction of 20,000 square feet or more of non-residential Gross Floor Area (GFA), though a Traffic Study shall not be required if a Table I threshold is not met. Where a mix of uses is proposed the threshold shall be determined by the application of the Mixed Use Formula set forth in Table 1. Amend Section 19.46 to read as follows: 19.46 Areas of Special Planning Concern. The following zoning districts shall be considered Areas of Special Planning Concern:

Cambridge Street Districts – Revised Zoning Petition December 22, 2025 Page 13 (a) Business A-1 and Business A-2 and Business A-4 Districts (b) Parkway Overlay District (c) Kirkland Place Overlay District (d) Harvard Square Overlay District (e) Central Square Overlay District (f) Cambridgeport Revitalization Development District (g) Massachusetts Avenue Overlay District (h) Special District 12 (i) Special District 13 (j) Special District 14 (k) Memorial Drive Overlay District (l) Prospect Street Overlay District (m) Alewife Overlay Districts (n) Cambridge Street Districts (CAM-8, CAM-10, CAM-12, and CAM-15).