Walnut · Zoning · R-5
Walnut R-5 zoning: height, setbacks and lot size
In Walnut's R-5 zone, buildings can be up to 60 ft (4 stories) tall, the front setback is 0 ft and the minimum lot size is 4,000 sq. ft. (Walnut code, read October 2026).
Key points
- Maximum building height: 60 ft
- Maximum number of stories: 4 stories
- Minimum front setback: 0 ft
- Minimum side setback: 5 ft
- Minimum rear setback: 10 ft
- Minimum lot size: 4,000 sq. ft.
- Maximum lot coverage: 80%
- Maximum density: 36.1 to 40.0 units per acre (the code sets a range: at least 36.1, at most 40.0)
R-5 (HIGH 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-5
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 | 60 ft § 6.35.040 · code textTable row “Maximum Height”, column “R-5”: 60′ |
|---|---|
| Maximum number of stories | 4 stories § 6.35.040 · code textTable row “Maximum Number of Stories”, column “R-5”: 4 |
| Minimum front setback | 0 ft § 6.35.040 · code textTable row “Front Yard Setbacks”, column “R-5”: 0′ |
| Minimum side setback | 5 ft § 6.35.040 · code textTable row “Minimum Side Yard Setbacks”, column “R-5”: 5′ |
| Minimum rear setback | 10 ft § 6.35.040 · code textTable row “Minimum Rear Yard Setbacks”, column “R-5”: 10′ |
| Minimum lot size | 4,000 sq. ft. § 6.35.040 · code textTable row “Minimum Lot Size (sq. ft.)”, column “R-5”: 4,000 sq. ft. |
| Maximum lot coverage | 80% § 6.35.040 · code textTable row “Lot Coverage”, column “R-5”: 80% |
| Maximum density | 36.1 to 40.0 units per acre Applies: the code sets a range: at least 36.1, at most 40.0 § 6.35.040 · code textTable row “Density”, column “R-5”: 36.1 – 40.0 du/ac |
Not on this page
We did not find a general FAR limit for R-5 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 maximum building height in Walnut's R-5 zone?
60 ft — Walnut Municipal Code § 6.35.040.
What is the maximum number of stories in Walnut's R-5 zone?
4 stories — Walnut Municipal Code § 6.35.040.
What is the minimum front setback in Walnut's R-5 zone?
0 ft — Walnut Municipal Code § 6.35.040.
What is the minimum side setback in Walnut's R-5 zone?
5 ft — Walnut Municipal Code § 6.35.040.
What is the minimum rear setback in Walnut's R-5 zone?
10 ft — Walnut Municipal Code § 6.35.040.
General information, not legal advice.
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