Permits were filed for a three-story residential development at Rockridge Geotechnical’s 66 Mountain Spring Avenue site in San Francisco. This permit would authorize the construction of a new deck and stairs in the rear yard, as it slopes downwards.

From SFYIMBY: https://sfyimby.com/2024/09/permits-filed-for-66-mountain-spring-avenue-twin-peaks-san-francisco.html