Rialto · Zoning · C-1
Rialto C-1 zoning: height, setbacks and lot size
In Rialto's C-1 zone, generally buildings can be up to 35 ft tall and the front setback is 10 ft, with the conditions listed below (Rialto code, read October 2026).
Key points
- Maximum building height: 35 ft
- Minimum front setback: 10 ft (Where all the frontage in one block is located in the C-1 zone)
- Minimum side setback: None required
- Minimum rear setback: 15 ft
C-1 (Neighborhood Commercial Zone) is a zoning district in Rialto. Every value below was read from the Rialto 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 C-1
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 § 18.28.030 · code textA. Building height limit, two and one-half stories and not to exceed thirty-five feet; |
|---|---|
| Minimum front setback | 10 ft Applies: Where all the frontage in one block is located in the C-1 zone § 18.28.030 · code textB. Front yard, where all the frontage in one block is located in the C-1 zone there shall be a minimum setback of ten feet extending the full width of the lot to be planted with appropriate landscape material and adequately maintained. |
| Minimum side setback | None required § 18.28.030 · code textC. Side yard, where a lot sides upon a lot in an R zone there shall be a side yard of not less than five feet. Where a reversed corner lot rears upon a lot in any R zone, the side yard on the street side of the reversed corner lot shall be not less than fifty percent of the front yard required on the lots in the rear of such corner lot. In all other cases a side yard is not required; |
| Minimum rear setback | 15 ft § 18.28.030 · code textD. Rear yard, there shall be a rear yard having a depth of not less than fifteen feet. |
When a different number applies
The code sets other values for particular lots, buildings or locations in C-1:
- Minimum side setback: 5 ft — Where a lot sides upon a lot in an R zone § 18.28.030
- Minimum side setback: 50% of the rear lots' required front yard — Street side of a reversed corner lot that rears upon a lot in any R zone § 18.28.030
Not on this page
We did not find a general stories, lot size, lot coverage, FAR, density limit for C-1 in the zoning tables we read. The code may still set one elsewhere — check the Rialto Municipal Code.
Other Rialto zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Rialto's C-1 zone?
35 ft — Rialto Municipal Code § 18.28.030.
What is the minimum front setback in Rialto's C-1 zone?
10 ft (where all the frontage in one block is located in the C-1 zone) — Rialto Municipal Code § 18.28.030.
What is the minimum side setback in Rialto's C-1 zone?
None required — Rialto Municipal Code § 18.28.030.
What is the minimum rear setback in Rialto's C-1 zone?
15 ft — Rialto Municipal Code § 18.28.030.
General information, not legal advice.
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