Seal Beach · Zoning · RHD-20
Seal Beach RHD-20 zoning: height, setbacks and lot size
In Seal Beach's RHD-20 zone, generally buildings can be up to 25 ft (2 stories) tall, the front setback is average 12 ft; minimum 6 ft and the minimum lot size is 2,500 sq. ft., with the conditions listed below (Seal Beach code, read October 2026).
Key points
- Maximum building height: 25 ft
- Maximum number of stories: 2 stories
- Minimum front setback: average 12 ft; minimum 6 ft
- Minimum side setback: 10% of lot width, 3 ft minimum, 10 ft maximum
- Minimum lot size: 2,500 sq. ft. (Interior Lots; minimum lot area)
- Maximum lot coverage: 75%
- Maximum density: 1 unit per 2,178 sq. ft. of lot area
RHD-20 is a zoning district in Seal Beach. Every value below was read from the Seal Beach 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 RHD-20
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 | 25 ft § 11.2.05.015 · code textTable row “Maximum Height (ft.)”, column “RHD-20”: 25 (not to exceed 2 stories) |
|---|---|
| Maximum number of stories | 2 stories § 11.2.05.015 · code textTable row “Maximum Height (ft.)”, column “RHD-20”: 25 (not to exceed 2 stories) |
| Minimum front setback | average 12 ft; minimum 6 ft § 11.2.05.015 · code textTable row “Front - Minimum”, column “RHD-20”: Average 12; minimum 6 |
| Minimum side setback | 10% of lot width, 3 ft minimum, 10 ft maximum § 11.2.05.015 · code textTable row “Interior Side - Minimum”, column “RHD-20”: 10% of lot width; 3 ft. minimum; 10 ft. maximum |
| Minimum lot size | 2,500 sq. ft. Applies: Interior Lots; minimum lot area § 11.2.05.015 · code textTable row “Interior Lots”, column “RHD-20”: 2,500 |
| Maximum lot coverage | 75% § 11.2.05.015 · code textTable row “Maximum Lot Coverage (%)”, column “RHD-20”: 75(B) |
| Maximum density | 1 unit per 2,178 sq. ft. of lot area § 11.2.05.015 · code textTable row “Maximum Density”, column “RHD-20”: 1 unit per 2,178 sq. ft. of lot area |
When a different number applies
The code sets other values for particular lots, buildings or locations in RHD-20:
- Minimum rear setback: 24 ft minus width of alley — When abutting an alley § 11.2.05.015
Not on this page
We did not find a general rear setback, FAR limit for RHD-20 in the zoning tables we read. The code may still set one elsewhere — check the Seal Beach Municipal Code.
Other Seal Beach zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Seal Beach's RHD-20 zone?
25 ft — Seal Beach Municipal Code § 11.2.05.015.
What is the maximum number of stories in Seal Beach's RHD-20 zone?
2 stories — Seal Beach Municipal Code § 11.2.05.015.
What is the minimum front setback in Seal Beach's RHD-20 zone?
average 12 ft; minimum 6 ft — Seal Beach Municipal Code § 11.2.05.015.
What is the minimum side setback in Seal Beach's RHD-20 zone?
10% of lot width, 3 ft minimum, 10 ft maximum — Seal Beach Municipal Code § 11.2.05.015.
What is the minimum lot size in Seal Beach's RHD-20 zone?
2,500 sq. ft. (interior Lots; minimum lot area) — Seal Beach Municipal Code § 11.2.05.015.
General information, not legal advice.
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