Walnut · Zoning · R-2
Walnut R-2 zoning: height, setbacks and lot size
In Walnut's R-2 zone, the front setback is 20 ft and the minimum lot size is 8,000 sq ft (Walnut code, read October 2026).
Key points
- Minimum front setback: 20 ft
- Minimum side setback: 5 ft
- Minimum rear setback: 20 ft
- Minimum lot size: 8,000 sq ft
- Maximum lot coverage: 50% (semi-enclosed open-use patio structures and swimming pools are not counted)
R-2 (LIMITED MULTIPLE FAMILY RESIDENTIAL ZONE) is a zoning district in Walnut. Every value below was read from the Walnut 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-2
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.
| Minimum front setback | 20 ft § 6.28.070 · code textEach lot in the R-2 zone shall have a front yard extending, except for access drives and walks, across the full width of the subject property, of a depth of not less than 20 feet. |
|---|---|
| Minimum side setback | 5 ft § 6.28.070 · code textThere shall be a side yard on each side of the lot extending from the front yard to the rear yard not less than five feet in width. |
| Minimum rear setback | 20 ft § 6.28.070 · code textEach lot shall have a rear yard extending, except for access drives and walks, across the full width of the lot of a depth of not less than 20 feet. |
| Minimum lot size | 8,000 sq ft § 6.28.040 · code textThe minimum lot area shall be 8,000 square feet. |
| Maximum lot coverage | 50% Applies: semi-enclosed open-use patio structures and swimming pools are not counted § 6.28.080 · code textThe maximum coverage of the lot in an R-2 zone by all structures shall not exceed 50% of the lot building area; provided, that any semi-enclosed patio structure which is used solely for general open use shall not be counted as a structure in ascertaining coverage, nor shall swimming pools be counted. |
When a different number applies
The code sets other values for particular lots, buildings or locations in R-2:
- Minimum side setback: 10 ft — corner lot; side yard abutting the street § 6.28.070
Not on this page
We did not find a general height, stories, FAR, density limit for R-2 in the zoning tables we read. The code may still set one elsewhere — check the Walnut Municipal Code.
Other Walnut zoning districts
Who this affects
Frequently asked questions
What is the minimum front setback in Walnut's R-2 zone?
20 ft — Walnut Municipal Code § 6.28.070.
What is the minimum side setback in Walnut's R-2 zone?
5 ft — Walnut Municipal Code § 6.28.070.
What is the minimum rear setback in Walnut's R-2 zone?
20 ft — Walnut Municipal Code § 6.28.070.
What is the minimum lot size in Walnut's R-2 zone?
8,000 sq ft — Walnut Municipal Code § 6.28.040.
What is the maximum lot coverage in Walnut's R-2 zone?
50% (semi-enclosed open-use patio structures and swimming pools are not counted) — Walnut Municipal Code § 6.28.080.
General information, not legal advice.
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