Santa Ana · Zoning · C-SM
Santa Ana C-SM zoning: height, setbacks and lot size
In Santa Ana's C-SM zone, generally buildings can be up to 35 ft tall, the front setback is No front setback allowed and the minimum lot size is 6,000 sq ft, with the conditions listed below (Santa Ana code, read October 2026).
Key points
- Maximum building height: 35 ft
- Minimum front setback: No front setback allowed (except developments with outdoor dining areas, under city council guidelines)
- Minimum side setback: None required (corner lots with parking facing the side street need a side yard of at least 5 ft)
- Minimum rear setback: None required (property next to residentially zoned or used property needs a rear landscape buffer of at least 5 ft where parking is provided)
- Minimum lot size: 6,000 sq ft (each lot used for commercial purposes)
C-SM (South Main Street Commercial District) is a zoning district in Santa Ana. Every value below was read from the Santa Ana 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-SM
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 § 41-524 · code textNo structure shall exceed thirty-five (35) feet in height. |
|---|---|
| Minimum front setback | No front setback allowed Applies: except developments with outdoor dining areas, under city council guidelines § 41-525 · code textThere shall be no front yard building setback allowed except for developments which provide outdoor dining areas subject to the approval of guidelines established by resolution of the city council. |
| Minimum side setback | None required Applies: corner lots with parking facing the side street need a side yard of at least 5 ft § 41-526 · code textThere are no side yard requirements, except on corner lots with parking facing the side street, the side yard shall be not less than five (5) feet. |
| Minimum rear setback | None required Applies: property next to residentially zoned or used property needs a rear landscape buffer of at least 5 ft where parking is provided § 41-527 · code textThere is no rear yard requirement, except that property abutting residentially zoned or used property shall have a rear yard landscape buffer of not less than five (5) feet where parking is provided. |
| Minimum lot size | 6,000 sq ft Applies: each lot used for commercial purposes § 41-529 · code textEach lot, which is used for commercial purposes in the C-SM district, shall have at least six thousand (6,000) square feet of area and fifty (50) feet of street frontage. |
When a different number applies
The code sets other values for particular lots, buildings or locations in C-SM:
- Minimum side setback: 5 ft — corner lots with parking facing the side street § 41-526
- Minimum side setback: 20 ft — for the portion of a building above the first 15 feet in height, when the lot is contiguous to residentially zoned or used property on the side § 41-526
- Minimum rear setback: 5 ft — property abutting residentially zoned or used property where parking is provided; rear yard landscape buffer § 41-527
- Minimum rear setback: 20 ft — for the portion of a building above the first 15 feet in height, when the lot is contiguous to residentially zoned or used property on the rear § 41-527
Not on this page
We did not find a general stories, lot coverage, FAR, density limit for C-SM in the zoning tables we read. The code may still set one elsewhere — check the Santa Ana Municipal Code.
Other Santa Ana zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Santa Ana's C-SM zone?
35 ft — Santa Ana Municipal Code § 41-524.
What is the minimum front setback in Santa Ana's C-SM zone?
No front setback allowed (except developments with outdoor dining areas, under city council guidelines) — Santa Ana Municipal Code § 41-525.
What is the minimum side setback in Santa Ana's C-SM zone?
None required (corner lots with parking facing the side street need a side yard of at least 5 ft) — Santa Ana Municipal Code § 41-526.
What is the minimum rear setback in Santa Ana's C-SM zone?
None required (property next to residentially zoned or used property needs a rear landscape buffer of at least 5 ft where parking is provided) — Santa Ana Municipal Code § 41-527.
What is the minimum lot size in Santa Ana's C-SM zone?
6,000 sq ft (each lot used for commercial purposes) — Santa Ana Municipal Code § 41-529.
General information, not legal advice.
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