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Redlands, CA Building Setbacks & Zoning: Setback Rules (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

R-1 front yard
25 to 40 feet
R-1 side yard
5 feet / 10 feet
R-1 rear yard
25 feet minimum
R-A/R-A-A side yard
10 feet both sides
Narrow-lot side yard
20% of lot width aggregate

Summary

In Redlands' R-1 Single-Family Residential District, Redlands City Code sections 18.44.130 through 18.44.150 set a front yard of 25 to 40 feet, side yards of 5 feet on one side and 10 feet on the other (or 20 percent of lot width, aggregated, on narrow lots), and a rear yard of at least 25 feet. Other residential districts carry their own, different numbers.

18.44.130: FRONT YARD: ... In R-1 Zones: A. ... Each lot shall have a front yard extending for the full width of the lot. The yard shall be not less than twenty five feet (25') nor more than forty feet (40') in depth. ... 18.44.140: ... SIDE YARD: In R-1 Zones: A. Each lot shall have a side yard of not less than five feet (5') on one side and not less than ten feet (10') on the opposite side; provided, however, an interior lot shall have not less than a ten foot (10'), level side yard on the garage side. ... 18.44.150: ... REAR YARD: Each lot in the R-1 Zone shall have a rear yard of not less than twenty five feet (25').

Full Breakdown

030(D) for key lots. 140 sets the side yard at 'not less than five feet (5') on one side and not less than ten feet (10') on the opposite side,' with a mandatory ten-foot level side yard on the garage side, and requires narrow lots below the required minimum frontage to provide an aggregate side yard of at least 20 percent of lot width while never going below five feet on either side. 070 for permitted exceptions. These numbers are specific to R-1; other zones differ substantially. 140) requires the same 25-foot front and rear yards but a 10-foot side yard on both sides of the main building. 148.

Violations & Fines

Building within a required front, side or rear yard without an approved variance, exception under chapter 18.152, or as part of an addition that has not gone through the building-permit and zoning-review process under chapter 18.188 is a zoning violation, subject to a stop-work order, denial or revocation of the building permit, and abatement action under chapter 18.208.

Frequently Asked Questions

What is the minimum backyard setback in Redlands?
In the R-1 Single-Family Residential District, Redlands City Code section 18.44.150 requires a rear yard of not less than twenty five feet, subject to the permitted exceptions listed in section 18.152.070.
Do side yard setbacks differ between the two sides of an R-1 lot?
Yes. Section 18.44.140 requires only five feet on one side but ten feet on the other, and the ten-foot side must be on the garage side; corner lots have their own rule requiring the garage next to the interior lot line.
Are setbacks the same in every Redlands residential zone?
No. R-A and R-A-A districts require a flat 10-foot side yard on both sides under sections 18.32.090 and 18.33.100, unlike R-1's 5-foot/10-foot split, so the applicable numbers depend on the parcel's specific zoning district.

Sources & Official References

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