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Commission approves Seacliff house with conditions after neighbors object to demolition and glazed penthouse

San Francisco Planning Commission · November 10, 2016
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Summary

After a long discretionary review and heated public comment, the Planning Commission approved construction of a new house at 255 Seacliff with conditions that limit occupiable rooftop area to 400 sq ft and require setbacks of at least 5 ft (east) and 3.5 ft (west). The decision followed debate over demolition, neighborhood character, privacy and light impacts.

The commission considered a discretionary review for demolition of an existing single‑family house at Seacliff Avenue and construction of a new four‑story residence. Project proponents said the existing building’s low ceiling heights, deferred maintenance and structural constraints make a new house more feasible than a piecemeal remodel. Architect Lewis Butler described design work to minimize bulk and to employ textured materials and recessed window treatments.

Neighbors objected at length, arguing the block has no prior demolitions, that the proposed four‑story glazed penthouse and rooftop deck would be out of character, create light pollution, and produce significant privacy intrusions for adjacent yards and living rooms. Marlene Marce, whose master bedroom and small private patio sit near the party wall, said the project would "voluntarily lose 100% of the privacy that we have enjoyed for many years." Several neighbors submitted assessor records and photographs to contend the block lacks comparable four‑story forms and said the proposed massing is substantially larger than existing houses.

Staff and RDT reviewed the project and after revisions recommended approval. RDT notes and project packets were discussed at length during the hearing; the sponsor said the new house would be slightly shorter than the existing structure in some measures and pointed to mitigations such as deeper setbacks and compressed penthouse volumes.

Commissioners debated whether to remove the glazed penthouse entirely, require larger side setbacks, or cap the occupiable rooftop area. After multiple motions and amendments, the commission approved the project with modifications that limit the total occupiable rooftop (enclosed penthouse plus terrace) to 400 square feet and require setbacks of at least 5 feet from the east property line and at least 3.5 feet from the west. The motion passed 5‑2, with Commissioners Hillis and Moore opposed.

Why it matters: The decision balances property rights and building modernization against neighborhood character, privacy and light concerns. The rooftop limitations and setbacks are a compromise designed to reduce privacy impacts while allowing the owners to realize a new home on the site.

Next steps: The sponsor will return with final building plans that conform to the rooftop envelope and setback conditions; staff will confirm the demolition/soundness documentation and the revised penthouse detailing before permit issuance.