Corona · Zoning · R-12.0
Corona R-12.0 zoning: height, setbacks and lot size
In Corona's R-12.0 zone, generally buildings can be up to 30 ft (2 stories) tall, the front setback is 25 ft and the minimum lot size is 12,000 sq ft, with the conditions listed below (Corona code, read October 2026).
Key points
- Maximum building height: 30 ft (a single-story structure is limited to 25 ft)
- Maximum number of stories: 2 stories
- Minimum front setback: 25 ft (need not be deeper than the average of the neighboring front yards, but never less than 20 ft)
- Minimum rear setback: 10 ft (15 ft where the rear yard abuts a street)
- Minimum lot size: 12,000 sq ft
- Maximum lot coverage: 40% (single-story buildings or structures)
R-12.0 (SINGLE-FAMILY RESIDENTIAL ZONE) is a zoning district in Corona. Every value below was read from the Corona 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-12.0
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 | 30 ft Applies: a single-story structure is limited to 25 ft § 17.12.090 · code textBuildings and structures erected in this zone shall have a height not greater than two stories or 30 feet, whereas a single story structure shall be one story and no greater than 25 feet, except as otherwise provided. |
|---|---|
| Maximum number of stories | 2 stories § 17.12.090 · code textBuildings and structures erected in this zone shall have a height not greater than two stories or 30 feet, whereas a single story structure shall be one story and no greater than 25 feet, except as otherwise provided. |
| Minimum front setback | 25 ft Applies: need not be deeper than the average of the neighboring front yards, but never less than 20 ft § 17.12.100 · code textA front yard having a depth of not less than 25 feet, provided that no front yard need be deeper than the average depths of the front yards next thereto on each side, but in no case may the yard be reduced below 20 feet. |
| Minimum rear setback | 10 ft Applies: 15 ft where the rear yard abuts a street § 17.12.100 · code textEach lot shall have a rear yard of not less than ten feet, except where the rear yard abuts a street, in which case the minimum setback shall be 15 feet, or as otherwise provided; |
| Minimum lot size | 12,000 sq ft § 17.12.060 · code textEach lot shall have a minimum lot area of 12,000 square feet. |
| Maximum lot coverage | 40% Applies: single-story buildings or structures § 17.12.120 · code textExcept as provided in § 17.64.010(E), lot area coverage by single-story buildings or structures shall not exceed 40% of the total lot area. |
When a different number applies
The code sets other values for particular lots, buildings or locations in R-12.0:
- Maximum building height: 25 ft — single story structure § 17.12.090
- Maximum number of stories: 1 story — single story structure § 17.12.090
- Minimum front setback: 20 ft — yard may be reduced based on the average depths of the front yards next thereto on each side, but not below 20 feet § 17.12.100
- Minimum side setback: 10 ft — lot with no access to an alley; one side yard § 17.12.100
- Minimum side setback: 7 ft — lot with no access to an alley; other side yard § 17.12.100
- Minimum side setback: 7 ft — lot with access to an alley; each side § 17.12.100
- Minimum side setback: 10% of lot width, min 4 ft — lot substandard in width § 17.12.100
- Minimum rear setback: 15 ft — rear yard abuts a street § 17.12.100
- Minimum lot size: 5 acres — lot used for agricultural purposes § 17.12.060
- Maximum lot coverage: 30% — two-story buildings or structures § 17.12.120
- Maximum density: 1 unit per 12,000 sq ft — Lots recorded before the effective date of the ordinance are exempt § 17.12.080
Not on this page
We did not find a general side setback, FAR, density limit for R-12.0 in the zoning tables we read. The code may still set one elsewhere — check the Corona Municipal Code.
Other Corona zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Corona's R-12.0 zone?
30 ft (a single-story structure is limited to 25 ft) — Corona Municipal Code § 17.12.090.
What is the maximum number of stories in Corona's R-12.0 zone?
2 stories — Corona Municipal Code § 17.12.090.
What is the minimum front setback in Corona's R-12.0 zone?
25 ft (need not be deeper than the average of the neighboring front yards, but never less than 20 ft) — Corona Municipal Code § 17.12.100.
What is the minimum rear setback in Corona's R-12.0 zone?
10 ft (15 ft where the rear yard abuts a street) — Corona Municipal Code § 17.12.100.
What is the minimum lot size in Corona's R-12.0 zone?
12,000 sq ft — Corona Municipal Code § 17.12.060.
General information, not legal advice.
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