Colma ADU topic page
Colma 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
One bedroom or less: 850 square feet Two bedrooms: 1000 square feet *50% of main home floor area, unless under 800 square feet (state law allows an ADU up to 800 square feet on every property) JADUs: 500 square feet
Setbacks and parking
Conversion of existing area of residence to JADU: No setback requirements ADU of 800 Square Feet or less: Side setback: 4 feet minimum. Rear setback: 4 feet minimum. Front setback: 19 feet minimum. Street-facing property line setback: 15 feet minimum ADU of 800 Square...