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Planning Commission approves Sutro Tower antenna and ground‑level upgrades with neighborhood conditions
Summary
The commission approved rooftop antenna additions (including community broadband and emergency communications), ground‑level erosion control and a satellite dish at Sutro Tower, subject to supplemental landscaping, painting of equipment and neighborhood engagement conditions aimed at screening and limiting installation impacts.
The Planning Commission on March 19 approved mandatory discretionary review permits for Sutro Tower to add roughly 51 rooftop antennas/dishes (including attachments for the San Francisco community broadband network, Department of Emergency Management and KQED) and to carry out ground‑level changes such as erosion control, a retaining wall, driveway repairs and a 42‑foot‑diameter ground satellite receiver. The vote was unanimous 6‑0 with a suite of supplemental neighborhood conditions.
Planning staff noted an addendum to the 2008 EIR analyzed the additions and concluded no significant environmental impacts. Sutro Tower representatives said the new antennas are state‑of‑the‑art, that RF exposure modeling (submitted to the Department of Public Health) predicts maximum emissions well below FCC limits even in conservative scenarios, and that engineering and structural reviews confirm the attachments are structurally supported.
Neighborhood speakers urged stronger landscape screening and restoration of tree cover that had been removed from portions of the site over time; Twin Peaks and Summit residents requested ongoing engagement and clearer timelines for revegetation. Sutro Tower representatives agreed to a supplemental landscaping plan (to be coordinated with SFPUC and the Fire Department) and to repaint exposed conduit and rooftop elements, evaluate full rooftop screening feasibility and limit installation‑hour noise and driveway disruptions. The project sponsor also said 15 antennas support the city’s community broadband network and several attachments enable broadened first‑responder, foreign‑language and public‑broadcast coverage.
Staff recommended conditions that include a six‑month landscaping submittal, painting of visible conduit and rooftop hardware, feasibility work on rooftop screening, construction and installation noise/working hours limits, and coordination with SFPUC on planting on adjoining land. The commission voted to take mandatory discretionary review and approve the permits with the recommended conditions and directed staff and the applicant to keep neighborhood representatives informed during implementation. The motion passed unanimously 6‑0.
