San Bernardino · Zoning · RU
San Bernardino RU zoning: height, setbacks and lot size
In San Bernardino's RU zone, generally buildings can be up to 35 ft tall and the minimum lot size is 7,200 sq ft, with the conditions listed below (San Bernardino code, read October 2026).
Key points
- Maximum building height: 35 ft
- Minimum rear setback: 10 ft (Single-family dwellings follow the RS standards.)
- Minimum lot size: 7,200 sq ft (Lots of record before June 2, 1989: 6,200 sq ft, with their existing width and depth. Single-family dwellings follow the RS standards.)
- Maximum lot coverage: 40% (Single-family dwellings follow the RS standards.)
- Maximum density: 8 units per acre (12 for senior housing. Single-family dwellings follow the RS standards.)
RU is a zoning district in San Bernardino. Every value below was read from the San Bernardino 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 RU
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 | 35 ft § 19.04.030 · code textTable row “Maximum Structure Height in Stories (feet)”, column “RU”: 2.5 (35) |
|---|---|
| Minimum rear setback | 10 ft Applies: Single-family dwellings follow the RS standards. § 19.04.030 · code textTable row “Rear Setback (feet) (4)”, column “RU”: 10 |
| Minimum lot size | 7,200 sq ft Applies: Lots of record before June 2, 1989: 6,200 sq ft, with their existing width and depth. Single-family dwellings follow the RS standards. § 19.04.030 · code textTable row “Lot Area (s.f.) (Minimum required for new development)”, column “RU”: 7,200 |
| Maximum lot coverage | 40% Applies: Single-family dwellings follow the RS standards. § 19.04.030 · code textTable row “Building Lot Coverage (Maximum %)”, column “RU”: 40 |
| Maximum density | 8 units per acre Applies: 12 for senior housing. Single-family dwellings follow the RS standards. § 19.04.030 · code textTable row “Lot Area Maximum Units/ Net Acre”, column “RU”: 8 |
Not on this page
We did not find a general stories, front setback, side setback, FAR limit for RU in the zoning tables we read. The code may still set one elsewhere — check the San Bernardino Municipal Code.
Other San Bernardino zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in San Bernardino's RU zone?
35 ft — San Bernardino Municipal Code § 19.04.030.
What is the minimum rear setback in San Bernardino's RU zone?
10 ft (single-family dwellings follow the RS standards) — San Bernardino Municipal Code § 19.04.030.
What is the minimum lot size in San Bernardino's RU zone?
7,200 sq ft (lots of record before June 2, 1989: 6,200 sq ft, with their existing width and depth. Single-family dwellings follow the RS standards) — San Bernardino Municipal Code § 19.04.030.
What is the maximum lot coverage in San Bernardino's RU zone?
40% (single-family dwellings follow the RS standards) — San Bernardino Municipal Code § 19.04.030.
What is the maximum density in San Bernardino's RU zone?
8 units per acre (12 for senior housing. Single-family dwellings follow the RS standards) — San Bernardino Municipal Code § 19.04.030.
General information, not legal advice.
Ask about a San Bernardino property in RU
Ask GoCodebook what you can build at a specific address and get an answer that cites the section.
Ask your question