Napa

Today Napa is becoming a vibrant and modern town with a respect for its past. Just down the road from our protected historic districts, home to some of northern California's finest Victorian homes, you will find visually stimulating contemporary architecture. Minutes from our many safe and comfortable neighborhoods are the popular Main Street "Restaurant Row," the West End and the Oxbow District. Our award-winning "living river" flood protection project is more than halfway to completion, making Napa safer while enhancing the ecosystem and providing stimulus to the economy and quality-of-life benefits. Napa is a city with a low crime rate, a high standard of living, clean air and nearly perfect weather.
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Napa ADU Permits and Regulations Resources

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Learn about ADU regulations in the city of Napa
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Learn about ADU regulations in Napa
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Today Napa is becoming a vibrant and modern town with a respect for its past. Just down the road from our protected historic districts, home to some of northern California's finest Victorian homes, you will find visually stimulating contemporary architecture. Minutes from our many safe and comfortable neighborhoods are the popular Main Street "Restaurant Row," the West End and the Oxbow District. Our award-winning "living river" flood protection project is more than halfway to completion, making Napa safer while enhancing the ecosystem and providing stimulus to the economy and quality-of-life benefits. Napa is a city with a low crime rate, a high standard of living, clean air and nearly perfect weather.
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Building permit information for Napa
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City Planner
emorris@cityofnapa.org 707-257-9530
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When it comes to financing your ADU, our friends at San Mateo Credit Union offer ADU Loans, reach out to one of our home specialists for an introduction!

Regulations

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Max ADU Size
Lot under 9,000 sqft: 600 sqft Lot between 9,000 and 1000 sqft: 650 sqft Lot over 10,000 sqft: 800 sqft
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Front Setback
45’ Note: Front setbacks vary by zoning, please talk to a home specialist to confirm
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Primary Residence Setback
10’
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Side and Rear Setback
4’