Union City · Zoning · A
Union City A zoning: height, setbacks and lot size
In Union City's A zone, buildings can be up to 30 ft (2.5 stories) tall, the front setback is 25 ft and the minimum lot size is 20 acres (Union City code, read October 2026).
Key points
- Maximum building height: 30 ft
- Maximum number of stories: 2.5 stories
- Minimum front setback: 25 ft
- Minimum side setback: 15 ft
- Minimum rear setback: 25 ft
- Minimum lot size: 20 acres
A (Agricultural) is a zoning district in Union City. Every value below was read from the Union City 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 A
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 § 18.48.060 · code textNo structure shall exceed either two and one-half (2.5) stories or 30 feet in height. |
|---|---|
| Maximum number of stories | 2.5 stories § 18.48.060 · code textNo structure shall exceed either two and one-half (2.5) stories or 30 feet in height. |
| Minimum front setback | 25 ft § 18.48.070 · code textFront yard: Twenty-five feet; |
| Minimum side setback | 15 ft § 18.48.070 · code textSide yards: Each side 15 feet; |
| Minimum rear setback | 25 ft § 18.48.070 · code textRear yard: Twenty-five feet. |
| Minimum lot size | 20 acres § 18.48.070 · code textLot size: Twenty acres; |
Not on this page
We did not find a general lot coverage, FAR, density limit for A in the zoning tables we read. The code may still set one elsewhere — check the Union City Municipal Code.
Other Union City zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Union City's A zone?
30 ft — Union City Municipal Code § 18.48.060.
What is the maximum number of stories in Union City's A zone?
2.5 stories — Union City Municipal Code § 18.48.060.
What is the minimum front setback in Union City's A zone?
25 ft — Union City Municipal Code § 18.48.070.
What is the minimum side setback in Union City's A zone?
15 ft — Union City Municipal Code § 18.48.070.
What is the minimum rear setback in Union City's A zone?
25 ft — Union City Municipal Code § 18.48.070.
General information, not legal advice.
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