Eureka · Zoning · A
Eureka A zoning: height, setbacks and lot size
In Eureka's A zone, generally buildings can be up to 35 ft tall, the front setback is 30 ft and the minimum lot size is 20 acres, with the conditions listed below (Eureka code, read October 2026).
Key points
- Maximum building height: 35 ft (Residential structures)
- Minimum front setback: 30 ft
- Minimum side setback: 30 ft (Interior side)
- Minimum rear setback: 30 ft
- Minimum lot size: 20 acres (Applies only to new lots created through the subdivision process after June 20, 2019.)
- Maximum density: 2 units per 20 acres (Excludes allowed farm worker housing.)
A (Agricultural) is a zoning district in Eureka. Every value below was read from the Eureka 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 | 35 ft Applies: Residential structures § 155.220.030 · code textTable row “Residential structures”, column “Agricultural A”: 35 ft. |
|---|---|
| Minimum front setback | 30 ft § 155.220.030 · code textTable row “Front”, column “Agricultural A”: 30 ft. |
| Minimum side setback | 30 ft Applies: Interior side § 155.220.030 · code textTable row “Interior side”, column “Agricultural A”: 30 ft. |
| Minimum rear setback | 30 ft § 155.220.030 · code textTable row “Rear”, column “Agricultural A”: 30 ft. |
| Minimum lot size | 20 acres Applies: Applies only to new lots created through the subdivision process after June 20, 2019. § 155.220.030 · code textTable row “Minimum lot area [1]”, column “Agricultural A”: 20 acres |
| Maximum density | 2 units per 20 acres Applies: Excludes allowed farm worker housing. § 155.220.030 · code textTable row “Maximum density (du/acre)”, column “Agricultural A”: 2 units per 20 acres [2] |
Uses in A
Uses the code's use tables allow in A, or allow with a permit. Each links to its page with the code section.
- Single-family home — Allowed
- Kennel — Allowed
When a different number applies
The code sets other values for particular lots, buildings or locations in A:
- Maximum building height: 50 ft — Non-residential structures § 155.220.030
Not on this page
We did not find a general stories, lot coverage, FAR limit for A in the zoning tables we read. The code may still set one elsewhere — check the Eureka Municipal Code.
Other Eureka zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Eureka's A zone?
35 ft (residential structures) — Eureka Municipal Code § 155.220.030.
What is the minimum front setback in Eureka's A zone?
30 ft — Eureka Municipal Code § 155.220.030.
What is the minimum side setback in Eureka's A zone?
30 ft (interior side) — Eureka Municipal Code § 155.220.030.
What is the minimum rear setback in Eureka's A zone?
30 ft — Eureka Municipal Code § 155.220.030.
What is the minimum lot size in Eureka's A zone?
20 acres (applies only to new lots created through the subdivision process after June 20, 2019) — Eureka Municipal Code § 155.220.030.
General information, not legal advice.
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