Folsom · Zoning · R-1-M
Folsom R-1-M zoning: height, setbacks and lot size
In Folsom's R-1-M zone, generally buildings can be up to 35 ft tall, the front setback is 20 ft and the minimum lot size is 6,000 sq ft, with the conditions listed below (Folsom code, read October 2026).
Key points
- Maximum building height: 35 ft
- Minimum front setback: 20 ft
- Minimum side setback: 5 ft on one side and 11 ft on the other side (At the option of the owner, developer or subdivider)
- Minimum rear setback: 20% of lot depth, minimum 10 ft, maximum 20 ft
- Minimum lot size: 6,000 sq ft (Interior lots)
- Maximum lot coverage: 35%
R-1-M (Residential, Single-Family Dwelling, Small Lot District) is a zoning district in Folsom. Every value below was read from the Folsom 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-M
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 § 17.13.110 · code textBuilding height limit requirement is two and one-half stories, but not to exceed thirty-five feet. |
|---|---|
| Minimum front setback | 20 ft § 17.13.070 · code textThe front yard requirement in the R-1-M district is twenty feet. |
| Minimum side setback | 5 ft on one side and 11 ft on the other side Applies: At the option of the owner, developer or subdivider § 17.13.080 · code textThe side yard requirement is five feet on one side of the lot and eleven feet on the other side of the lot at the option of the owner, developer or subdivider, except that the side yard on the street side of each corner lot shall be not less than twenty percent of the lot width, but need not exceed sixteen feet; however, it cannot be less than eleven feet. |
| Minimum rear setback | 20% of lot depth, minimum 10 ft, maximum 20 ft § 17.13.090 · code textThe rear yard requirement is twenty percent of lot depth; may not be less than ten feet, need not exceed twenty feet. |
| Minimum lot size | 6,000 sq ft Applies: Interior lots § 17.13.040 · code textLot area required in the R-1-M district is six thousand square feet for interior lots; seven thousand five hundred square feet for corner lots. |
| Maximum lot coverage | 35% § 17.13.060 · code textMaximum main building coverage in the R-1-M district is thirty-five percent of lot area. |
When a different number applies
The code sets other values for particular lots, buildings or locations in R-1-M:
- Minimum side setback: 20% of lot width, maximum 16 ft and minimum 11 ft — Street side of each corner lot § 17.13.080
- Minimum lot size: 7,500 sq ft — Corner lots § 17.13.040
Not on this page
We did not find a general stories, FAR, density limit for R-1-M in the zoning tables we read. The code may still set one elsewhere — check the Folsom Municipal Code.
Other Folsom zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Folsom's R-1-M zone?
35 ft — Folsom Municipal Code § 17.13.110.
What is the minimum front setback in Folsom's R-1-M zone?
20 ft — Folsom Municipal Code § 17.13.070.
What is the minimum side setback in Folsom's R-1-M zone?
5 ft on one side and 11 ft on the other side (at the option of the owner, developer or subdivider) — Folsom Municipal Code § 17.13.080.
What is the minimum rear setback in Folsom's R-1-M zone?
20% of lot depth, minimum 10 ft, maximum 20 ft — Folsom Municipal Code § 17.13.090.
What is the minimum lot size in Folsom's R-1-M zone?
6,000 sq ft (interior lots) — Folsom Municipal Code § 17.13.040.
General information, not legal advice.
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