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Planning staff proposes mid‑block rights, massing controls and green‑factor in Eastern Neighborhoods heights plan
Summary
Urban‑design staff proposed height criteria and detailed massing controls — including mid‑block pedestrian easements for very large parcels, alley sunlight protections, mass‑reduction triggers for facades over 200 feet and an optional vertical architectural element — aiming to preserve neighborhood scale while enabling transit‑oriented growth.
Urban design staff presented the commission with the height‑setting criteria and detailed design controls that would accompany the proposed Eastern Neighborhoods rezoning. Neil Roshoey, the department’s urban designer, said staff used eight criteria to set heights and design guidance — local context, the urban design element, respect for topography and bay access, support for major transit and civic streets, building‑type rationalization, sensitivity to alleys and minor streets, pedestrian experience, and historic fabric protections.
Mid‑block rights of way, massing and alleys
To mitigate the large block sizes that characterize much of the Eastern Neighborhoods, staff proposed mid‑block rights of way on parcels with more than 300 feet of street frontage, requiring an at‑grade public easement at least 20 feet wide to provide pedestrian movement and public access. Massing rules would require meaningful mass reductions for buildings with frontages greater than 200 feet; staff said smaller or cosmetic reductions would be insufficient and project review by the commission would be emphasized in such cases. Alleyway controls were proposed to preserve sunlight, scale and walkability for smaller, publicly accessible lanes.
Vertical elements and Green Factor
Staff proposed allowing optional vertical, non‑habitable architectural elements to break up long street walls — limited to a 50‑foot dimension and to no more than 150% of allowable height — and described an SF Green Factor program to require or incentivize ecologically sustainable open space (e.g., street plantings, rooftop rainwater gardens and roof usable open space).
Design quality and implementation concerns
Roshoey emphasized high‑quality finishes, ground‑floor activation and articulation to support a human‑scale pedestrian experience. Commissioners and public commenters pressed staff for district‑scale detail on how guidelines will be implemented and for assurances that design review and neighborhood planning would ensure neighborhood recognition of the proposals rather than leaving details to isolated, developer‑led projects.
Next steps
Staff said urban‑design policies and heights would be integrated into the draft area plans to be released in October, and that detailed implementation steps and district‑scale guidelines will be part of follow‑on analysis and design work.
