Carolyn Dutton raises concerns over proposed three-story addition in Corbett Avenue

The San Francisco Planning Commission convened on July 4, 2025, to discuss a proposed residential project on a steeply sloping lot measuring approximately 25 feet wide by 70 feet deep. The existing structure, built in 1947, is classified as a category B age-eligible historic resource.

The meeting featured a significant concern raised by Carolyn Dutton, a neighbor residing at 980 Corbett Avenue, who expressed apprehension that the proposed project does not adequately adhere to the residential design guidelines aimed at minimizing impacts on light and privacy for adjacent properties. Dutton suggested two alternatives: limiting the rear addition to the first level only or aligning the extension with the neighboring addition at the second and third levels.

Despite Dutton's concerns, the planning staff reported that no letters of support or opposition had been received regarding the project. The staff's review indicated that the proposed addition complies with the planning code and residential design guidelines. The design includes setbacks for the second and third floors, which are set back 3 feet and 5 feet from the north lot line, respectively, with additional stepping back of 15 feet from the proposed rear wall of the floor below. These design features were deemed sufficient to address issues of scale and light access.

Clara Dutton, representing her family, voiced her concerns about the potential impact on sunlight and the usability of their rear yard, emphasizing that the proposed three-story addition would obstruct sunlight due to their position directly north of the new building. She highlighted the importance of balancing the rights of the developers with the need to maintain adequate light for neighboring properties, referencing code specifications that support this balance.

The commission allowed Clara Dutton to present photographs illustrating the potential impact on sunlight, reinforcing her family's position on the matter. The discussion concluded with the planning staff recommending against taking discretionary review, citing no exceptional circumstances that would warrant further scrutiny of the project.

The meeting underscored the ongoing challenges in urban development, particularly in balancing new construction with the rights and concerns of existing residents. The commission's decision will be pivotal in determining the future of this residential project and its implications for neighborhood dynamics.