Half Moon Bay ADU topic page
Half Moon Bay ADU Rules
Start with the official local ADU rules, then confirm lot-specific limits before requesting provider quotes.
Short answer
Start with the official local ADU rules, then confirm lot-specific limits before requesting provider quotes.
Source requirement: Official city or county rule source parsed and cited.
Local rule evidence
Size
Min: 150 sf, Max one bedroom or less: 850 square feet, Max two or more bedrooms: 1200 square feet
Setbacks and parking
Side and rear: 4 feet, Front: same as primary dwelling JADUs: No parking required ADUs: One spot may be required (tandem allowed). No parking required if: ½ mile walking distance from public transit, in a historic district, or one block from a car-share vehicle...