Lassen County · Zoning · R-3
Lassen County R-3 zoning: height, setbacks and lot size
In Lassen County's R-3 zone, generally buildings can be up to 45 ft tall and the front setback is 20 ft, with the conditions listed below (Lassen County code, read October 2026).
Key points
- Maximum building height: 45 ft
- Minimum front setback: 20 ft (where 4 or more lots in the block are improved, the average of those lots if under 20 ft, but at least 15 ft)
- Minimum side setback: 5 ft
- Minimum rear setback: 15 ft
- Maximum lot coverage: 60%
R-3 (Multiple-Family Residential District) is a zoning district in Lassen County. Every value below was read from the Lassen County 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-3
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 | 45 ft § 18.26.050 · code text(1) Building height limit: forty-five feet; |
|---|---|
| Minimum front setback | 20 ft Applies: where 4 or more lots in the block are improved, the average of those lots if under 20 ft, but at least 15 ft § 18.26.050 · code text(3) Front yard required: minimum required twenty feet; provided, that where four or more lots in a block have been improved with buildings, the minimum front yard shall be the average of the improved lots if less than the required twenty feet, but not less than fifteen feet, except where combined with a B district; |
| Minimum side setback | 5 ft § 18.26.050 · code text(4) Side yard required: five feet; |
| Minimum rear setback | 15 ft § 18.26.050 · code text(5) Rear yard required: fifteen feet; |
| Maximum lot coverage | 60% § 18.26.050 · code text(2) Percentage of lot coverage permitted: sixty percent; |
When a different number applies
The code sets other values for particular lots, buildings or locations in R-3:
- Minimum front setback: Average of built lots, not less than 15 ft — where four or more lots in the block have buildings and the average is under 20 ft; not where combined with a B district § 18.26.050
Not on this page
We did not find a general stories, lot size, FAR, density limit for R-3 in the zoning tables we read. The code may still set one elsewhere — check the Lassen County Municipal Code.
Other Lassen County zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Lassen County's R-3 zone?
45 ft — Lassen County Municipal Code § 18.26.050.
What is the minimum front setback in Lassen County's R-3 zone?
20 ft (where 4 or more lots in the block are improved, the average of those lots if under 20 ft, but at least 15 ft) — Lassen County Municipal Code § 18.26.050.
What is the minimum side setback in Lassen County's R-3 zone?
5 ft — Lassen County Municipal Code § 18.26.050.
What is the minimum rear setback in Lassen County's R-3 zone?
15 ft — Lassen County Municipal Code § 18.26.050.
What is the maximum lot coverage in Lassen County's R-3 zone?
60% — Lassen County Municipal Code § 18.26.050.
General information, not legal advice.
Ask about a Lassen County property in R-3
Ask GoCodebook what you can build at a specific address and get an answer that cites the section.
Ask your question