Rocklin · Zoning · C-3
Rocklin C-3 zoning: height, setbacks and lot size
In Rocklin's C-3 zone, generally buildings can be up to 30 ft (2 stories) tall, the front setback is 5 ft and the minimum lot size is 20,000 sq ft, with the conditions listed below (Rocklin code, read October 2026).
Key points
- Maximum building height: 30 ft (subject to an exception the code lists right after this sentence)
- Maximum number of stories: 2 stories (subject to an exception the code lists right after this sentence)
- Minimum front setback: 5 ft (10 ft when adjacent to a residential zone)
- Minimum side setback: None required (10 ft when adjacent to a residential zone)
- Minimum rear setback: 10 ft
- Minimum lot size: 20,000 sq ft
C-3 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 C-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 | 30 ft Applies: subject to an exception the code lists right after this sentence § 17.48.030 · code textThe maximum height for principal buildings and structures shall be thirty feet, and the maximum number of stories shall be two, with the following exception: |
|---|---|
| Maximum number of stories | 2 stories Applies: subject to an exception the code lists right after this sentence § 17.48.030 · code textThe maximum height for principal buildings and structures shall be thirty feet, and the maximum number of stories shall be two, with the following exception: |
| Minimum front setback | 5 ft Applies: 10 ft when adjacent to a residential zone § 17.48.050 · code textThere shall be a front setback of not less than five feet, except when adjacent to a residential zone, not less than ten feet. |
| Minimum side setback | None required Applies: 10 ft when adjacent to a residential zone § 17.48.050 · code textNone required except ten feet when adjacent to a residential zone. |
| Minimum rear setback | 10 ft § 17.48.050 · code textThere shall be a rear setback of not less than ten feet. |
| Minimum lot size | 20,000 sq ft § 17.48.040 · code textThe minimum lot area for each lot in the C-3 zone shall be twenty thousand square feet. |
When a different number applies
The code sets other values for particular lots, buildings or locations in C-3:
- Maximum building height: 50 ft — With a use permit § 17.48.030
- Maximum number of stories: 4 stories — With a use permit § 17.48.030
- Minimum front setback: 10 ft — When adjacent to a residential zone § 17.48.050
- Minimum side setback: 10 ft — When adjacent to a residential zone § 17.48.050
Not on this page
We did not find a general lot coverage, FAR, density limit for C-3 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 C-3 zone?
30 ft (subject to an exception the code lists right after this sentence) — Rocklin Municipal Code § 17.48.030.
What is the maximum number of stories in Rocklin's C-3 zone?
2 stories (subject to an exception the code lists right after this sentence) — Rocklin Municipal Code § 17.48.030.
What is the minimum front setback in Rocklin's C-3 zone?
5 ft (10 ft when adjacent to a residential zone) — Rocklin Municipal Code § 17.48.050.
What is the minimum side setback in Rocklin's C-3 zone?
None required (10 ft when adjacent to a residential zone) — Rocklin Municipal Code § 17.48.050.
What is the minimum rear setback in Rocklin's C-3 zone?
10 ft — Rocklin Municipal Code § 17.48.050.
General information, not legal advice.
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