Redlands · Zoning · A-1-20
Redlands A-1-20 zoning: height, setbacks and lot size
In Redlands's A-1-20 zone, generally buildings can be up to 35 ft tall, the front setback is 25 ft and the minimum lot size is 20 acres, with the conditions listed below (Redlands code, read October 2026).
Key points
- Maximum building height: 35 ft (or two and one-half stories)
- Minimum front setback: 25 ft
- Minimum side setback: 5 ft
- Minimum rear setback: 25 ft (lots under 40,000 sq ft may have projections into the rear yard as in the R-A zone)
- Minimum lot size: 20 acres
- Maximum lot coverage: 10%
- Maximum density: 1 dwelling unit per 20 acres
A-1-20 (Agricultural District) is a zoning district in Redlands. Every value below was read from the Redlands 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 A-1-20
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 Applies: or two and one-half stories § 18.21.100 · code textExcept as provided in section 18.152.030 of this title, all buildings and structures shall have a height of not greater than two and one-half (21/2) stories or thirty five feet (35'). |
|---|---|
| Minimum front setback | 25 ft § 18.21.110 · code textEach lot shall have a front yard of not less than twenty five feet (25') extending across the full width of the lot. |
| Minimum side setback | 5 ft § 18.21.120 · code textEach lot shall have a side yard on both sides of the main building, or buildings, of not less than five feet (5'). |
| Minimum rear setback | 25 ft Applies: lots under 40,000 sq ft may have projections into the rear yard as in the R-A zone § 18.21.130 · code textEach lot shall have a rear yard of not less than twenty five feet (25'); provided lots of less than forty thousand (40,000) square feet may have projections into the rear yard in accordance with provisions for the R-A zone in section 18.152.070 of this title. |
| Minimum lot size | 20 acres § 18.21.060 · code textEach lot shall have a minimum area of twenty (20) acres. |
| Maximum lot coverage | 10% § 18.21.090 · code textMaximum coverage by structures shall be ten percent (10%) of the lot area. |
| Maximum density | 1 dwelling unit per 20 acres § 18.21.080 · code textPopulation density shall be one dwelling unit per twenty (20) acres. |
When a different number applies
The code sets other values for particular lots, buildings or locations in A-1-20:
- Maximum density: 1 dwelling unit per lot — Lots existing at the time of adoption of the ordinance codified in this chapter and containing less than 20 acres § 18.21.080
Not on this page
We did not find a general stories, FAR limit for A-1-20 in the zoning tables we read. The code may still set one elsewhere — check the Redlands Municipal Code.
Other Redlands zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Redlands's A-1-20 zone?
35 ft (or two and one-half stories) — Redlands Municipal Code § 18.21.100.
What is the minimum front setback in Redlands's A-1-20 zone?
25 ft — Redlands Municipal Code § 18.21.110.
What is the minimum side setback in Redlands's A-1-20 zone?
5 ft — Redlands Municipal Code § 18.21.120.
What is the minimum rear setback in Redlands's A-1-20 zone?
25 ft (lots under 40,000 sq ft may have projections into the rear yard as in the R-A zone) — Redlands Municipal Code § 18.21.130.
What is the minimum lot size in Redlands's A-1-20 zone?
20 acres — Redlands Municipal Code § 18.21.060.
General information, not legal advice.
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