Rocklin · Zoning · R1-3.5
Rocklin R1-3.5 zoning: height, setbacks and lot size
In Rocklin's R1-3.5 zone, generally buildings can be up to 35 ft tall, the front setback is 10 ft and the minimum lot size is 3,500 sq ft, with the conditions listed below (Rocklin code, read October 2026).
Key points
- Maximum building height: 35 ft (principal buildings and structures)
- Minimum front setback: 10 ft (porch and living area)
- Minimum side setback: 4 ft (interior side; no encroachments by structural or architectural elements, including fireplaces and chimneys)
- Minimum rear setback: 10 ft (primary structure)
- Minimum lot size: 3,500 sq ft
- Maximum lot coverage: 70%
R1-3.5 is a zoning district in Rocklin. Every value below was read from the Rocklin 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 R1-3.5
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: principal buildings and structures § 17.09.040 · code textThe maximum height for principal buildings and structures shall be thirty-five feet. |
|---|---|
| Minimum front setback | 10 ft Applies: porch and living area § 17.09.080 · code textThere shall be a front setback of not less than ten feet. |
| Minimum side setback | 4 ft Applies: interior side; no encroachments by structural or architectural elements, including fireplaces and chimneys § 17.09.080 · code textThere shall be an interior side setback of not less than four feet with no encroachments by structural or architectural elements, including fireplaces and chimneys. |
| Minimum rear setback | 10 ft Applies: primary structure § 17.09.080 · code textThere shall be a rear setback of not less than ten feet. |
| Minimum lot size | 3,500 sq ft § 17.09.050 · code textThe minimum lot area for each lot in the R1-3.5 zone shall be three thousand five hundred square feet. |
| Maximum lot coverage | 70% § 17.09.060 · code textThe maximum lot coverage by all structure and buildings in the R1-3.5 zone shall not exceed seventy percent of the lot area. |
When a different number applies
The code sets other values for particular lots, buildings or locations in R1-3.5:
- Minimum front setback: 18 ft — face of garage § 17.09.080
- Minimum rear setback: 4 ft — structure open on three sides; setback to the vertical structure § 17.09.080
- Minimum rear setback: 1 ft — structure open on three sides; setback to the eaves § 17.09.080
Not on this page
We did not find a general stories, FAR, density limit for R1-3.5 in the zoning tables we read. The code may still set one elsewhere — check the Rocklin Municipal Code.
Other Rocklin zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Rocklin's R1-3.5 zone?
35 ft (principal buildings and structures) — Rocklin Municipal Code § 17.09.040.
What is the minimum front setback in Rocklin's R1-3.5 zone?
10 ft (porch and living area) — Rocklin Municipal Code § 17.09.080.
What is the minimum side setback in Rocklin's R1-3.5 zone?
4 ft (interior side; no encroachments by structural or architectural elements, including fireplaces and chimneys) — Rocklin Municipal Code § 17.09.080.
What is the minimum rear setback in Rocklin's R1-3.5 zone?
10 ft (primary structure) — Rocklin Municipal Code § 17.09.080.
What is the minimum lot size in Rocklin's R1-3.5 zone?
3,500 sq ft — Rocklin Municipal Code § 17.09.050.
General information, not legal advice.
Ask about a Rocklin property in R1-3.5
Ask GoCodebook what you can build at a specific address and get an answer that cites the section.
Ask your question