Earlier editions: 2026-07
Title 20 — Land Use Code›Chapter 20.08 — BASE ZONING DISTRICTS
Healdsburg Municipal Code Art. I Zoning Districts
Healdsburg Municipal Code · 2026-10 edition · updated 2026-10-04 · Healdsburg
Cite as: Healdsburg Municipal Code Article I · Text as of 2026-10-04
§ 20.08.005. Zoning districts established¶
The following zoning districts are hereby established:
Table 1 Zoning Districts
| Residential Districts | R-1-40,000 | Single-Family Residential District, 40,000 sq. ft. minimum lot size (net) |
|---|---|---|
| Residential Districts | R-1-20,000 | Single -Family Residential District, 20,000 sq. ft. minimum lot size (net) |
| Residential Districts | R-1-12,500 | Single -Family Residential District, 12,500 sq. ft. minimum lot size (net) |
| Residential Districts | R-1-6,000 | Single -Family Residential District, 6,000 sq. ft. minimum lot size (net) (1) |
| Residential Districts | R-1-3,500 | Single -Family Residential District, 3,500 sq. ft. minimum lot size (net) (1) |
| Residential Districts | RM | Multi-Family Residential District |
| Residential Districts | DR | Downtown Residential District |
| Office Districts | ORM | Office and Multi-Family Residential District |
| Office Districts | MP | Medical and Professional Office District |
| Commercial Districts | PR | Plaza Retail District |
| Commercial Districts | CD | Downtown Commercial District |
| Commercial Districts | CS | Commercial Service District |
| Commercial Districts | MU | Mixed Use District |
| Commercial Districts | GMU | Grove Street Mixed Use District |
| Industrial District | I | Industrial District |
| Other Districts | P | Public District |
| Other Districts | O | Open Space District |
| Special Districts | RMP | Residential Master Plan District |
| Special Districts | PD | Planned Development District |
| Notes: |
|---|
| (1) Except for small lot subdivisions, as provided for by HMC § 20.20.040 . |
| Note: "Net" means the area of a site or lot. It does not include site access corridors, streets or portions of a site within future street plan lines. |
(Ord. 950 § 2 (Exh. A § 120), 1998; Ord. 1018 § 2 (Exh. A § 120), 2004; Ord. 1090 § 4 (Exh. B § 120), 2009)
§ 20.08.010. Zoning district boundaries¶
Wherever any uncertainty exists as to the boundary of a zoning district as shown on the Zoning Map, the following regulations shall control:
A. Where a boundary line is indicated as following a street, alley, or watercourse, it shall be construed as following the centerline thereof.
B. Where a boundary line follows or coincides approximately with a lot line or a property ownership line, it shall be construed as following the lot line or property ownership line.
C. Where a boundary line is not indicated as following a street or alley and does not follow or coincide approximately with a lot line or property ownership line, the boundary line shall be determined by the use of the scale designated on the Zoning Map.
D. Where further uncertainty exists, the planning commission, upon written application or on its own motion, shall determine the location of the boundary line in question, giving due consideration to the location indicated on the Zoning Map and the objectives of the Land Use Code set forth in the zoning district regulations.
E. Where less than half the area of any single lot or parcel of land lies in a zoning district more restrictive than the district that includes the remainder, the planning commission may permit the regulations of the less restrictive district to be applied to the entire lot or parcel.
(Ord. 950 § 2 (Exh. A §§ 125, 2775), 1998)
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