Napa · Zoning · AR
Napa AR zoning: height, setbacks and lot size
In Napa's AR zone, buildings can be up to 30 ft (2.5 stories) tall, the front setback is 50 ft and the minimum lot size is 20 acres (Napa code, read October 2026).
Key points
- Maximum building height: 30 ft
- Maximum number of stories: 2.5 stories
- Minimum front setback: 50 ft
- Minimum side setback: 50 ft (the table's side setback row; a separate side yard row lists 20 ft)
- Minimum rear setback: 35 ft
- Minimum lot size: 20 acres
AR is a zoning district in Napa. Every value below was read from the Napa Municipal Code and links to its section (read October 2026). State laws such as the ADU and SB 9 rules can allow more on a residential lot. General information, not legal advice — read the code text and check with the city before you build.
Development standards in AR
The general rule for a typical lot in this zone. Zoning tables often attach notes, such as rules for corner lots, lots next to a residential zone, or new subdivisions only. Open “code text” under a value to see the table cell or sentence it was read from.
| Maximum building height | 30 ft § 17.16.030 · code textTable row “Height—Main bldg.—Stories/height in feet, whichever is most restrictive”, column “AR”: 2.5/30 |
|---|---|
| Maximum number of stories | 2.5 stories § 17.16.030 · code textTable row “Height—Main bldg.—Stories/height in feet, whichever is most restrictive”, column “AR”: 2.5/30 |
| Minimum front setback | 50 ft § 17.16.030 · code textTable row “Front setback (feet)”, column “AR”: 50 |
| Minimum side setback | 50 ft Applies: the table's side setback row; a separate side yard row lists 20 ft § 17.16.030 · code textTable row “Side setback (feet)”, column “AR”: 50 |
| Minimum rear setback | 35 ft § 17.16.030 · code textTable row “Rear yard (feet)”, column “AR”: 35 |
| Minimum lot size | 20 acres § 17.16.030 · code textTable row “Minimum lot area—Acres”, column “AR”: 20 acres |
Uses in AR
Uses the code's use tables allow in AR, or allow with a permit. Each links to its page with the code section.
- Single-family home — Allowed
- Residential care home (7 or more) — Needs a conditional use permit — see note
- Bed and breakfast — Needs a conditional use permit — see note
- Child care center — Needs a conditional use permit
- Growing crops — Needs a conditional use permit
When a different number applies
The code sets other values for particular lots, buildings or locations in AR:
- Maximum building height: 40 ft — May be allowed through a design review permit if it is found to improve the design of the structure. § 17.16.030
- Minimum side setback: 20 ft — the table's separate side yard row; its side setback row lists 50 ft § 17.16.030
Not on this page
We did not find a general lot coverage, FAR, density limit for AR in the zoning tables we read. The code may still set one elsewhere — check the Napa Municipal Code.
Other Napa zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Napa's AR zone?
30 ft — Napa Municipal Code § 17.16.030.
What is the maximum number of stories in Napa's AR zone?
2.5 stories — Napa Municipal Code § 17.16.030.
What is the minimum front setback in Napa's AR zone?
50 ft — Napa Municipal Code § 17.16.030.
What is the minimum side setback in Napa's AR zone?
50 ft (the table's side setback row; a separate side yard row lists 20 ft) — Napa Municipal Code § 17.16.030.
What is the minimum rear setback in Napa's AR zone?
35 ft — Napa Municipal Code § 17.16.030.
General information, not legal advice.
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