Antioch · Zoning · C-3
Antioch C-3 zoning: height, setbacks and lot size
In Antioch's C-3 zone, buildings can be up to 70 ft tall and the minimum lot size is 20,000 sq ft (Antioch code, read October 2026).
Key points
- Maximum building height: 70 ft
- Minimum side setback: 0 ft
- Minimum rear setback: 10 ft
- Minimum lot size: 20,000 sq ft
- Maximum lot coverage: 35%
- Maximum density: 0 units per acre (The table assigns no residential density to this zone.)
C-3 is a zoning district in Antioch. Every value below was read from the Antioch 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 | 70 ft § 9-5.601 · code textTable row “C-3”, column “Maximum Height Feet b”: 70 |
|---|---|
| Minimum side setback | 0 ft § 9-5.601 · code textTable row “C-3”, column “Minimum Side Yard Required in Feet e”: 0 ft. |
| Minimum rear setback | 10 ft § 9-5.601 · code textTable row “C-3”, column “Minimum Rear Yard Required in Feet”: 10 ft. |
| Minimum lot size | 20,000 sq ft § 9-5.601 · code textTable row “C-3”, column “Minimum Building Site Sq. Ft.”: 20,000 |
| Maximum lot coverage | 35% § 9-5.601 · code textTable row “C-3”, column “Maximum Lot Coverage”: 35% |
| Maximum density | 0 units per acre Applies: The table assigns no residential density to this zone. § 9-5.601 · code textTable row “C-3”, column “Maximum Density Allowed Units Per Gross Developable Acre d”: 0 |
Uses in C-3
Uses the code's use tables allow in C-3, or allow with a permit. Each links to its page with the code section.
- Child care center — Needs an use permit
- Kennel — Needs an use permit
Not on this page
We did not find a general stories, front setback, FAR limit for C-3 in the zoning tables we read. The code may still set one elsewhere — check the Antioch Municipal Code.
Other Antioch zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Antioch's C-3 zone?
70 ft — Antioch Municipal Code § 9-5.601.
What is the minimum side setback in Antioch's C-3 zone?
0 ft — Antioch Municipal Code § 9-5.601.
What is the minimum rear setback in Antioch's C-3 zone?
10 ft — Antioch Municipal Code § 9-5.601.
What is the minimum lot size in Antioch's C-3 zone?
20,000 sq ft — Antioch Municipal Code § 9-5.601.
What is the maximum lot coverage in Antioch's C-3 zone?
35% — Antioch Municipal Code § 9-5.601.
General information, not legal advice.
Ask about an Antioch property in C-3
Ask GoCodebook what you can build at a specific address and get an answer that cites the section.
Ask your question