San Mateo County follows California Title 24 Part 6 (CALGreen) EV readiness requirements for new construction. Residential Level 2 chargers require electrical permit only. HOAs cannot prohibit owner-installed EV chargers under Civil Code §4745.
San Mateo County adopts California Building Standards Code including CALGreen (Title 24 Part 11) EV-readiness mandates. New single-family homes require one EV-ready parking space (40-amp 240V circuit). Multifamily buildings require 10% EV-ready and 25% EV-capable spaces. Nonresidential projects require 6% EV-ready. Residential Level 2 charger installation requires only an electrical permit (no building permit typically); permits often issued same-day online. Civil Code §4745 and §4745.1 preempt HOA rules that prohibit or unreasonably restrict EV chargers on owner property or exclusive-use common areas. HOAs must approve applications within 60 days. PG&E rebates and federal tax credits (30% up to $1,000) available. County has partnered with Peninsula Clean Energy for expanded EV infrastructure. Public charging stations must comply with ADA (CA Disabled Access) and DMS-100 signage standards.
Unpermitted electrical work: stop-work order, correction plus 2x fee. HOA violations of §4745: homeowner may recover statutory damages, civil penalty up to $1,000, and attorneys' fees. CALGreen non-compliance: certificate of occupancy withheld.
San Mateo County, CA
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