Brentwood · Zoning · R-1-12
Brentwood R-1-12 zoning: height, setbacks and lot size
In Brentwood's R-1-12 zone, buildings can be up to 30 ft (2 stories) tall, the front setback is 20 ft and the minimum lot size is 12,000 sq ft (Brentwood code, read October 2026).
Key points
- Maximum building height: 30 ft
- Maximum number of stories: 2 stories
- Minimum front setback: 20 ft
- Minimum side setback: 12 ft (Sum of both side yards at least 30 ft)
- Minimum rear setback: 20 ft
- Minimum lot size: 12,000 sq ft
R-1-12 is a zoning district in Brentwood. Every value below was read from the Brentwood 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 R-1-12
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 § 17.130.004 · code textI. Maximum Building Height Limit. No main building shall exceed the height of two stories and thirty feet. |
|---|---|
| Maximum number of stories | 2 stories § 17.130.004 · code textI. Maximum Building Height Limit. No main building shall exceed the height of two stories and thirty feet. |
| Minimum front setback | 20 ft § 17.130.004 · code textD. Minimum front yard: twenty feet; |
| Minimum side setback | 12 ft Applies: Sum of both side yards at least 30 ft § 17.130.004 · code text4. R-1-12 zone: minimum—twelve feet, sum of both sides—thirty feet; |
| Minimum rear setback | 20 ft § 17.130.004 · code textG. Minimum rear yard: twenty feet; |
| Minimum lot size | 12,000 sq ft § 17.130.004 · code text4. R-1-12 zone: twelve thousand square feet; |
When a different number applies
The code sets other values for particular lots, buildings or locations in R-1-12:
- Minimum side setback: 10 ft — Corner lots, street side § 17.130.004
Not on this page
We did not find a general lot coverage, FAR, density limit for R-1-12 in the zoning tables we read. The code may still set one elsewhere — check the Brentwood Municipal Code.
Other Brentwood zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Brentwood's R-1-12 zone?
30 ft — Brentwood Municipal Code § 17.130.004.
What is the maximum number of stories in Brentwood's R-1-12 zone?
2 stories — Brentwood Municipal Code § 17.130.004.
What is the minimum front setback in Brentwood's R-1-12 zone?
20 ft — Brentwood Municipal Code § 17.130.004.
What is the minimum side setback in Brentwood's R-1-12 zone?
12 ft (sum of both side yards at least 30 ft) — Brentwood Municipal Code § 17.130.004.
What is the minimum rear setback in Brentwood's R-1-12 zone?
20 ft — Brentwood Municipal Code § 17.130.004.
General information, not legal advice.
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