1437 Mason St, San Francisco, CA 94133

Located in the heart of Russian Hill, one of San Francisco’s most desirable and supply-constrained residential neighborhoods, 1437 Mason Street presents a rare opportunity to acquire a fully permitted renovation project with significant upside.

The property consists of a two-unit residential building originally constructed in 1907, situated on a 2,750 square foot lot in the RM-2 zoning district. The project has already secured approvals and permits through the San Francisco Department of Building Inspection, allowing a buyer to immediately move forward with construction and reposition the asset into a modern, high-end residential property.

Approved Development Scope

The approved plans call for a comprehensive redevelopment of the existing structure while maintaining the building envelope. The project includes:

• Complete interior reconfiguration of both residential units
• New structural foundation and seismic improvements
• Conversion of basement space into functional living area
• Removal and replacement of existing stair systems
• Full facade upgrades and exterior improvements
• New roof deck elements and modernized architectural features

Upon completion, the project will deliver two redesigned residential units with modern layouts, updated systems, and enhanced outdoor space