Mountain View, CA Building Safety: Green Building Code (2026)

The City of Mountain View adopted CALGreen, the 2025 California Green Building Standards Code, in its entirety under Sec. 107. A copy of the code is kept on file for public inspection in the Building Division of the Community Development Department. Sec. 05 applies the code to every newly constructed privately-owned building, addition, alteration or improvement, while Sec. 10 measures added by Sec. 25. 10 requires new single-family homes, duplexes and ADUs to install a heat pump space-conditioning system, a heat pump water heater, rooftop photovoltaics sized under Energy Code Sec.

1(c)14, battery-storage readiness under Sec. 0(s), and at least one Level 2 EV charging station under Sec. 05. New multifamily buildings must meet the intent of LEED Gold certification or stricter zoning standards, whichever is more stringent, plus scaled EV charging under Sec. 20 and bird-safe glazing under Sec. 10. A builder who cannot meet a locally amended mandatory measure may file a written modification request under Sec. 20; the building official may grant it only upon finding that strict compliance is impractical, the modification still meets the code's intent, and it does not lessen health, accessibility, life-safety, fire-safety or structural protection.

The chief building official, empowered as a law enforcement officer under Chapter 2, Article X of the City Code, administers and enforces the chapter, and every modification request and decision is entered in the project file kept by the Building Division.