Selling your San Francisco home just got more fun when it comes to low-flow toilet, showerhead and faucet requirements.
The Department of Building Inspection (DBI) is changing the maximum flush volumes and flow rates starting on May 15, 2026. Homeowners need to make sure they’re in compliance with the new requirements by the time escrow closes.
Here’s a quick rundown on what’s about to come into play later this month:
Showerheads and faucets
- Must have a maximum flow rate of 1.8 gallons per minute
- Previously allowed 2.2–2.5 GPM fixtures will no longer be compliant
Toilets
- New maximum flush volume: of 1.28 gallons per flush
- Previously compliant 1.6 GPF toilets must now be replaced
Sellers may request an exemption from replacing a toilet if doing so would compromise the historical integrity of the building. Exemptions may also be granted for showerheads required for medical reasons.
These changes will result in higher costs for sellers who may need to replace their toilet bowls and fixtures. Best to get ahead of it and have your water conservation inspection early in the sale process.