Antioch · Zoning · RTR-10
Antioch RTR-10 zoning: height, setbacks and lot size
In Antioch's RTR-10 zone, generally buildings can be up to 45 ft tall, the front setback is 15 ft and the minimum lot size is 3,500 sq ft, with the conditions listed below (Antioch code, read October 2026).
Key points
- Maximum building height: 45 ft
- Minimum front setback: 15 ft (Block averaging may lower it, but not below six feet. A garage front must be 20 feet from the property line.)
- Minimum side setback: 5 ft (Interior side yard. Two-story single-family lots need one side yard of 10 feet, as do at least 25% of lots in a subdivision.)
- Minimum rear setback: 15 ft
- Minimum lot size: 3,500 sq ft
- Maximum lot coverage: 50%
- Maximum density: 12 units per acre
RTR-10 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 RTR-10
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 § 9-5.601 · code textTable row “RTR-10”, column “Maximum Height Feet b”: 45 |
|---|---|
| Minimum front setback | 15 ft Applies: Block averaging may lower it, but not below six feet. A garage front must be 20 feet from the property line. § 9-5.601 · code textTable row “RTR-10”, column “Front Yard Minimum a, k”: 15 |
| Minimum side setback | 5 ft Applies: Interior side yard. Two-story single-family lots need one side yard of 10 feet, as do at least 25% of lots in a subdivision. § 9-5.601 · code textTable row “RTR-10”, column “Minimum Side Yard Required in Feet e”: 5 ft. |
| Minimum rear setback | 15 ft § 9-5.601 · code textTable row “RTR-10”, column “Minimum Rear Yard Required in Feet”: 15 ft. |
| Minimum lot size | 3,500 sq ft § 9-5.601 · code textTable row “RTR-10”, column “Minimum Building Site Sq. Ft.”: 3,500 |
| Maximum lot coverage | 50% § 9-5.601 · code textTable row “RTR-10”, column “Maximum Lot Coverage”: 50% |
| Maximum density | 12 units per acre § 9-5.601 · code textTable row “RTR-10”, column “Maximum Density Allowed Units Per Gross Developable Acre d”: 12 |
Not on this page
We did not find a general stories, FAR limit for RTR-10 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 RTR-10 zone?
45 ft — Antioch Municipal Code § 9-5.601.
What is the minimum front setback in Antioch's RTR-10 zone?
15 ft (block averaging may lower it, but not below six feet. A garage front must be 20 feet from the property line) — Antioch Municipal Code § 9-5.601.
What is the minimum side setback in Antioch's RTR-10 zone?
5 ft (interior side yard. Two-story single-family lots need one side yard of 10 feet, as do at least 25% of lots in a subdivision) — Antioch Municipal Code § 9-5.601.
What is the minimum rear setback in Antioch's RTR-10 zone?
15 ft — Antioch Municipal Code § 9-5.601.
What is the minimum lot size in Antioch's RTR-10 zone?
3,500 sq ft — Antioch Municipal Code § 9-5.601.
General information, not legal advice.
Ask about an Antioch property in RTR-10
Ask GoCodebook what you can build at a specific address and get an answer that cites the section.
Ask your question