San Francisco office real estate is gaining a newly renovated waterfront property as the Sobrato Organization completes work at One Harrison, a former Gap office building. The six-floor property spans approximately 180,000 square feet and has been repositioned for a potential technology headquarters tenant following Sobrato’s $82.5 million acquisition.
Key Takeaways
- The Sobrato Organization completed the renovation of One Harrison at 1 Harrison St. in San Francisco
- The six-floor building contains approximately 180,000 square feet of office space
- Sobrato acquired the property for $82.5 million in early 2023
- Renovation work includes electrified HVAC systems, redesigned office interiors and a rooftop entertaining area
- The company plans to lease the property to a single headquarters tenant
Sobrato Completes One Harrison Renovation
The Sobrato Organization has completed the renovation of One Harrison, a six-floor office building at 1 Harrison St. in San Francisco. Formerly occupied by Gap, the property has been prepared for a potential technology headquarters tenant.
The building contains approximately 180,000 square feet of office space. Sobrato intends to lease the entire property to one headquarters user rather than divide it among multiple tenants.
Renovation work focused on modernizing the existing structure, including electrified HVAC systems, redesigned office interiors and a rooftop entertaining area with views of the Bay Bridge.
Building Acquisition and Renovation
Sobrato acquired One Harrison for $82.5 million in early 2023. Rather than replace the existing building, the company undertook a major renovation of its mechanical systems, workplace interiors and rooftop space.
The project retains the property’s six-floor structure while adapting it for a new headquarters user. The completed renovation marks the next stage for a waterfront office building that had previously served as Gap workspace.
San Francisco Office Real Estate Gains a Repositioned Waterfront Property
One Harrison sits along San Francisco’s waterfront at 1 Harrison St. Its location combines a large office footprint with direct access to the waterfront and views of the Bay Bridge.
At approximately 180,000 square feet, the building can accommodate a substantial headquarters operation within a single property. Sobrato’s leasing strategy distinguishes it from offices designed for several smaller tenants.
The project also arrives amid continued technology-sector leasing activity across the city. Exa’s long-term AI headquarters lease for the approximately 40,000-square-foot Pioneer Building provides another example of a technology company committing to significant San Francisco office space.
For One Harrison, the combination of updated infrastructure, redesigned interiors and a waterfront setting gives a future tenant a headquarters-ready property without requiring new ground-up construction.
One Harrison Receives New Workplace and Building Upgrades
The renovation includes several changes to the property’s workplace environment and infrastructure. Electrified HVAC systems modernize a core building function, while redesigned interiors provide a new configuration for the next occupant.
A rooftop entertaining area adds usable outdoor space with views of the Bay Bridge. Together, the upgrades address building systems, interior work areas and shared amenity space within the existing footprint.
The renovation focuses on improving the current property rather than expanding beyond its approximately 180,000 square feet. The result is an updated office building designed around the needs of a single headquarters tenant.
Sobrato Targets a Single Headquarters Tenant
Sobrato plans to lease One Harrison to one headquarters tenant, making the single-user strategy central to the property’s next phase.
That approach comes as employers continue to reassess how much office space they need. Persistent Bay Area remote work remains closely tied to office attendance and leasing decisions even as companies introduce or strengthen return-to-office policies.
One Harrison’s approximately 180,000-square-foot footprint gives a prospective tenant the ability to consolidate employees and departments at one address. Its former use by Gap also demonstrates that the property has previously supported a large corporate office operation.
No future tenant has been publicly identified. For now, the confirmed development is the completion of the renovation and Sobrato’s plan to market the property for a single headquarters use.
Silicon Valley Developer Expands Its San Francisco Presence
The Sobrato Organization is a Silicon Valley developer, and One Harrison extends its commercial property activity into San Francisco’s waterfront office market.
Its $82.5 million acquisition and subsequent renovation represent an investment in an existing office asset rather than a new development. The project combines the property’s established location with updated systems, redesigned interiors and a headquarters-oriented leasing strategy.
The next major step will be securing a tenant for the completed building. Until then, One Harrison stands as a repositioned waterfront office property prepared for a large single-user operation.
Frequently Asked Questions
What is One Harrison in San Francisco?
One Harrison is a six-floor office building at 1 Harrison St. in San Francisco. The property contains approximately 180,000 square feet of office space and was formerly occupied by Gap.
Who owns One Harrison?
The Sobrato Organization owns One Harrison. The organization acquired the property for $82.5 million in early 2023.
How large is the One Harrison office building?
One Harrison contains approximately 180,000 square feet of office space across six floors.
When did Sobrato acquire One Harrison?
The Sobrato Organization acquired One Harrison in early 2023 for $82.5 million.
What upgrades were made to One Harrison?
The renovation includes electrified HVAC systems, redesigned office interiors and a rooftop entertaining area with views of the Bay Bridge.







