Napa ADU Laws & Regulations

Zoning

R-1/R-2

Lot Size

NA

Maximum ADU Floor area

1200sf

Rear Yard Coverage

The lot must contain an existing single-family residence or multifamily residence.

No. Bedrooms

2 bedrooms

Kitchen

Full kitchen facility required (permanent range, counter, refrigerator, sink)

Bath

Required

Parking

For the ADU, one parking space is required unless the property qualifies for an exemption under State law. Many ADUs qualify for an exemption

Setbacks

Front


Side

Rear


Setbacks must be sufficient for fire

safety to prevent the spread of fire

4ft

4ft

Height

Building heights greater than 16’, without going over maximum height for the zoning district in which the ADU is located, may be granted with the approval of an administrative permit.

Design

NA

Entryways

Required

Second Address

Request Postmaster

ADU Regulation Website

 

https://www.cityofnapa.org/DocumentCenter/View/8084/ADU-How-To?bidId=