Fontana · Zoning · R-5
Fontana R-5 zoning: height, setbacks and lot size
In Fontana's R-5 zone, generally buildings can be up to 55 ft (6 stories) tall, the front setback is 0 ft and the minimum lot size is 2 acres, with the conditions listed below (Fontana code, read October 2026).
Key points
- Maximum building height: 55 ft (Multi-Family)
- Maximum number of stories: 6 stories (Mixed use development)
- Minimum front setback: 0 ft (Mixed use development; major or primary frontage)
- Minimum side setback: 0 ft (Mixed use development; interior side building setback adjacent to R-5)
- Minimum lot size: 2 acres (new lots only)
- Maximum lot coverage: 70%
- Maximum floor area ratio (FAR): 5.0 (Mixed use development)
- Maximum density: 39.1 to 50.0 units per adjusted gross acre (multifamily projects without a commercial component; the code sets a range: at least 39.1, at most 50.0)
R-5 is a zoning district in Fontana. Every value below was read from the Fontana 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 | 55 ft Applies: Multi-Family § 30-447 · code textTable row “Multi-Family”, column “R-5”: 55' |
|---|---|
| Maximum number of stories | 6 stories Applies: Mixed use development § 30-454 · code textTable row “Maximum number of stories”, column “R-5”: 6 |
| Minimum front setback | 0 ft Applies: Mixed use development; major or primary frontage § 30-454 · code textTable row “Major or primary”, column “R-5”: 0-foot |
| Minimum side setback | 0 ft Applies: Mixed use development; interior side building setback adjacent to R-5 § 30-454 · code textTable row “R-5”, column “R-5”: 0' |
| Minimum lot size | 2 acres Applies: new lots only § 30-447 · code textTable row “Minimum lot size (sf)”, column “R-5”: 2 acres |
| Maximum lot coverage | 70% § 30-447 · code textTable row “Maximum lot coverage (adjusted gross acreage of total site)”, column “R-5”: 70% |
| Maximum floor area ratio (FAR) | 5.0 Applies: Mixed use development § 30-454 · code textTable row “Maximum floor area ratio FAR”, column “R-5”: 5.0 |
| Maximum density | 39.1 to 50.0 units per adjusted gross acre Applies: multifamily projects without a commercial component; the code sets a range: at least 39.1, at most 50.0 § 30-447 · code textTable row “Maximum permitted number of dwelling units per adjusted gross acre”, column “R-5”: 39.1—50.0 |
Uses in R-5
Uses the code's use tables allow in R-5, or allow with a permit. Each links to its page with the code section.
- Child care center — Needs a minor use permit
Not on this page
We did not find a general rear setback limit for R-5 in the zoning tables we read. The code may still set one elsewhere — check the Fontana Municipal Code.
Other Fontana zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Fontana's R-5 zone?
55 ft (multi-Family) — Fontana Municipal Code § 30-447.
What is the maximum number of stories in Fontana's R-5 zone?
6 stories (mixed use development) — Fontana Municipal Code § 30-454.
What is the minimum front setback in Fontana's R-5 zone?
0 ft (mixed use development; major or primary frontage) — Fontana Municipal Code § 30-454.
What is the minimum side setback in Fontana's R-5 zone?
0 ft (mixed use development; interior side building setback adjacent to R-5) — Fontana Municipal Code § 30-454.
What is the minimum lot size in Fontana's R-5 zone?
2 acres (new lots only) — Fontana Municipal Code § 30-447.
General information, not legal advice.
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