Healdsburg · Zoning · GMU
Healdsburg GMU zoning: height, setbacks and lot size
In Healdsburg's GMU zone, buildings can be up to 35 ft tall, the front setback is 30 ft and the minimum lot size is 12,500 sq. ft. (Healdsburg code, read October 2026).
Key points
- Maximum building height: 35 ft
- Minimum front setback: 30 ft
- Minimum side setback: 5 ft (1 story)
- Minimum rear setback: 25 ft
- Minimum lot size: 12,500 sq. ft.
- Maximum lot coverage: 30%
GMU is a zoning district in Healdsburg. Every value below was read from the Healdsburg 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 GMU
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 § 20.08.170 · code textThirty-five feet. |
|---|---|
| Minimum front setback | 30 ft § 20.08.160 · code textTable row “GMU”, column “Front”: 30 feet |
| Minimum side setback | 5 ft Applies: 1 story § 20.08.160 · code textTable row “GMU”, column “Side Yard Interior”: 1 story: 5 ft. 2 story: 10 ft. |
| Minimum rear setback | 25 ft § 20.08.160 · code textTable row “GMU”, column “Rear”: 25 feet |
| Minimum lot size | 12,500 sq. ft. § 20.08.160 · code textTable row “GMU”, column “Minimum Lot Area”: 12,500 sq. ft. |
| Maximum lot coverage | 30% § 20.08.165 · code textTable row “GMU”, column “Max. Site Coverage”: 30% |
Uses in GMU
Uses the code's use tables allow in GMU, or allow with a permit. Each links to its page with the code section.
- Single-family home — Allowed
- Church or place of worship — Needs a conditional use permit
- Horses and stables — Allowed
When a different number applies
The code sets other values for particular lots, buildings or locations in GMU:
- Minimum side setback: 10 ft — 2 story § 20.08.160
Not on this page
We did not find a general stories, FAR, density limit for GMU in the zoning tables we read. The code may still set one elsewhere — check the Healdsburg Municipal Code.
Other Healdsburg zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Healdsburg's GMU zone?
35 ft — Healdsburg Municipal Code § 20.08.170.
What is the minimum front setback in Healdsburg's GMU zone?
30 ft — Healdsburg Municipal Code § 20.08.160.
What is the minimum side setback in Healdsburg's GMU zone?
5 ft (1 story) — Healdsburg Municipal Code § 20.08.160.
What is the minimum rear setback in Healdsburg's GMU zone?
25 ft — Healdsburg Municipal Code § 20.08.160.
What is the minimum lot size in Healdsburg's GMU zone?
12,500 sq. ft. — Healdsburg Municipal Code § 20.08.160.
General information, not legal advice.
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