Council upholds zoning board, denies appeal of 2943 Pine Avenue addition

The Berkeley City Council voted to deny an appeal and uphold a unanimous Zoning Adjustments Board approval for a second‑story addition at 2943 Pine Avenue.

Planning staff told the council the site is a preexisting nonconforming lot (about 4,300 square feet) with an existing one‑story dwelling and a building coverage of roughly 42 percent, where 40 percent is permitted. Staff recommended the council affirm the ZAB decision and approve the 729‑square‑foot second‑floor addition subject to staff‑approved conditions, including a translucent treatment for a second‑floor bathroom window, saying the project is consistent with the zoning ordinance and general plan.

Neighbors who appealed the ZAB ruling argued the approved shadow studies understated loss of sunlight and privacy. Appellant representatives presented alternative 2‑D and 3‑D analyses that they said showed significant additional shading at 2918 and 2916 Elmwood Court; a landscape architect who reviewed the record testified the earlier studies contained location errors and undercounted impacts. The appellants asked the council either to overturn the ZAB approval or to send the case back for additional neighborhood mediation, and offered modest mitigation ideas, such as lowering the proposed roof peak by about 3 feet 4 inches and replacing a French door and decorative balcony with a privacy window.

The applicants said the addition is modest, would not expand the ground footprint, and that their shadow study shows no substantial loss of direct sunlight; the homeowner described family needs for more space after the pandemic and stressed the project would preserve the historically consistent look of the house.

Council members questioned both sets of analysts about methodology and calibration. Staff said applicants are required to submit photographs for model verification and that the city reviews models against those photographs and written instructions. Several members noted that different commonly used software packages (staff referenced Revit and one appellant referenced SketchUp) can produce different visualizations when geolocation, model inputs or vegetation are handled differently.

Council members repeatedly emphasized the legal standard for denying a permit: detriment. While several councilors said they were sympathetic to impacted neighbors and encouraged neighborly compromise, most said the record did not show the level of detriment required under the municipal code. Councilmember Hahn moved to deny the appeal and affirm the ZAB, a motion seconded on the floor. The clerk called the roll and the motion carried; Vice Mayor Droste had recused herself earlier because of proximity to the subject property.

The council’s decision leaves the ZAB‑approved permit in place with the staff‑recommended conditions. Council members urged neighbors and the applicants to continue dialogue about the design details going forward. The matter concluded and the council moved on to other business.

The next procedural step for the applicant is to proceed with building permits consistent with the approved plans and conditions; the council did not impose additional amendments to the approval at the hearing.

Sources: testimony and staff report presented at the Sept. 28 meeting, including presentations from the planning department, appellants’ representatives, the applicant, and public commenters.