Colton · Zoning · R-1
Colton R-1 zoning: height, setbacks and lot size
In Colton's R-1 zone, the front setback is 25 ft, the rear setback limit is 20 ft and the lot coverage limit is 40% (Colton code, read October 2026).
Key points
- Minimum front setback: 25 ft
- Minimum rear setback: 20 ft
- Maximum lot coverage: 40%
- Maximum density: 2.1 to 8 units per acre (The code sets a range: at least 2.1, at most 8)
R-1 (Low Density Residential Zone) is a zoning district in Colton. Every value below was read from the Colton 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-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.
| Minimum front setback | 25 ft See note 1 below the table in the code. § 18.12.050 · code textTable row “D. Minimum Front Yard Setback”, column “1 Main Building2 Accessory Building”: 25 feet 1 Note 1: May be reduced when clustering homes for hillside development, subject to discretionary review process. See "cluster development" definition in Chapter 18.04 (Definitions) and Section 18.10.150 (Hillside Setbacks) of this Title. |
|---|---|
| Minimum rear setback | 20 ft See note 1 below the table in the code. § 18.12.050 · code textTable row “G. Minimum Rear Yard Setback”, column “1 Main Building2 Accessory Building”: 20 feet 1, 2 Note 1: May be reduced when clustering homes for hillside development, subject to discretionary review process. See "cluster development" definition in Chapter 18.04 (Definitions) and Section 18.10.150 (Hillside Setbacks) of this Title. |
| Maximum lot coverage | 40% See note 1 below the table in the code. § 18.12.050 · code textTable row “I. Max. Lot Coverage”, column “1 Main Building2 Accessory Building”: 40% of lot area 1 Note 1: May be reduced when clustering homes for hillside development, subject to discretionary review process. See "cluster development" definition in Chapter 18.04 (Definitions) and Section 18.10.150 (Hillside Setbacks) of this Title. |
| Maximum density | 2.1 to 8 units per acre Applies: The code sets a range: at least 2.1, at most 8 § 18.12.050 · code textTable row “J. Dwelling Units per Acre”, column “1 Main Building2 Accessory Building”: 2.1 —8 DU/AC |
When a different number applies
The code sets other values for particular lots, buildings or locations in R-1:
- Minimum side setback: 10 ft — Reversed corner lot § 18.12.050
- Minimum rear setback: 25 ft — Main buildings and garages opening to an alley; setback measured from the opposite side of the alley § 18.12.050
Not on this page
We did not find a general height, stories, side setback, lot size, FAR limit for R-1 in the zoning tables we read. The code may still set one elsewhere — check the Colton Municipal Code.
Other Colton zoning districts
Who this affects
Frequently asked questions
What is the minimum front setback in Colton's R-1 zone?
25 ft — Colton Municipal Code § 18.12.050.
What is the minimum rear setback in Colton's R-1 zone?
20 ft — Colton Municipal Code § 18.12.050.
What is the maximum lot coverage in Colton's R-1 zone?
40% — Colton Municipal Code § 18.12.050.
What is the maximum density in Colton's R-1 zone?
2.1 to 8 units per acre (the code sets a range: at least 2.1, at most 8) — Colton Municipal Code § 18.12.050.
General information, not legal advice.
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