San Carlos · Zoning · OS
San Carlos OS zoning: height, setbacks and lot size
In San Carlos's OS zone, buildings can be up to 30 ft tall and the front setback is 30 ft (San Carlos code, read October 2026).
Key points
- Maximum building height: 30 ft
- Minimum front setback: 30 ft
- Minimum side setback: 10 ft
- Minimum rear setback: 20 ft
- Maximum lot coverage: 10%
OS is a zoning district in San Carlos. Every value below was read from the San Carlos 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 OS
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 § 18.08.030 · code textTable row “Maximum Height (ft.)”, column “OS”: 30 |
|---|---|
| Minimum front setback | 30 ft § 18.08.030 · code textTable row “Front”, column “OS”: 30 |
| Minimum side setback | 10 ft § 18.08.030 · code textTable row “Interior Side”, column “OS”: 10 |
| Minimum rear setback | 20 ft § 18.08.030 · code textTable row “Rear”, column “OS”: 20 |
| Maximum lot coverage | 10% § 18.08.030 · code textTable row “Maximum Lot Coverage (% of Lot)”, column “OS”: 10 |
Not on this page
We did not find a general stories, lot size, FAR, density limit for OS in the zoning tables we read. The code may still set one elsewhere — check the San Carlos Municipal Code.
Other San Carlos zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in San Carlos's OS zone?
30 ft — San Carlos Municipal Code § 18.08.030.
What is the minimum front setback in San Carlos's OS zone?
30 ft — San Carlos Municipal Code § 18.08.030.
What is the minimum side setback in San Carlos's OS zone?
10 ft — San Carlos Municipal Code § 18.08.030.
What is the minimum rear setback in San Carlos's OS zone?
20 ft — San Carlos Municipal Code § 18.08.030.
What is the maximum lot coverage in San Carlos's OS zone?
10% — San Carlos Municipal Code § 18.08.030.
General information, not legal advice.
Ask about a San Carlos property in OS
Ask GoCodebook what you can build at a specific address and get an answer that cites the section.
Ask your question