RED – City Hall Dome and Roof Revitalization and Seismic Strengthening

Water leaks at City Hall have damaged the structure and interior of the building. Revitalization of the Dome, Drum, Lantern and Roof Levels of City Hall are needed to address active water leaks through masonry, skylights, and Dome waterproofing membranes. Deteriorating structural stone and steel also require repair. Seismic strengthening work is needed as well. Complete scaffolding around the Dome is required for implementation of all components of this project, which makes it desirable to address all issues at once.

The estimated project cost for these repairs and improvements is at least $22 million. In October 2021, the Board of Supervisors authorized the sale of Transfer Development Rights (TDR) which could generate between $40 million to $50 million dollars to fund historic preservation work including the City Hall Dome and Roof Revitalization projects.