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Earlier editions: 2026-09

Chapter 26C — COASTAL ZONING RESOURCE DISTRICTS

Sonoma County Municipal Code Art. XXIV HD—Historic Combining District

Sonoma County Municipal Code · 2026-10 edition · updated 2026-10-04 · Sonoma County

Cite as: Sonoma County Municipal Code Article XXIV · Text as of 2026-10-04

Sec. 26C-240A. - Purpose.

To protect those structures, sites, and areas that are remainders of past eras, events and persons important in local, state, or national history, or which provide significant examples of architectural styles of the past, or which are unique and irreplaceable assets to the county and its communities.

(Ord. No. 5318 § 1, 2001.)

Exceptions & meaning →

Sec. 26C-240. - Designation of historic structures and historic districts.

Pursuant to the normal zoning procedures:

(a) An individual structure or an integrated group of structures on a single lot or lots having a special historical, architectural or aesthetic interest or value as a historic structure may be designated; and

(b) An area having special historical, architectural, or aesthetic interest or value as a historic district may be designated. Before creating a historic district the advice of local citizens and committees may be sought.

(Ord. No. 5318 § 1, 2001.)

Exceptions & meaning →

Sec. 26C-241. - Alterations of designated historic structures and new construction…

No zoning permit authorizing alterations (including demolition) in the exterior of a structure within the boundaries of a historic district and no zoning permits authorizing construction of a new building within the boundaries of a historic district shall be granted unless approval has been granted by the county landmarks commission. Minor alterations may be reviewed and approved by staff in conformance with standards. In all cases where the request for a zoning permit involves demolition alone, however, the county landmarks commission shall take action on such request within six (6) months of the date of application for the permit. It is not intended by this chapter to grant the county landmarks commission jurisdiction over zoning or use permit matters other than in the area of design review.

Alterations to existing structures and construction of new structures within the following designated historic districts must be consistent with the design guidelines adopted by the board of supervisors:

  1. Duncans Mills Historic District Design Guidelines.

(Ord. No. 5318, § 1, 2001; Ord. No. 6021, § I, 3-12-2013.)

Exceptions & meaning →

Sec. 26C-242. - Standards governing decisions of county landmarks commission.

In determining whether to approve or to disapprove an application for a zoning permit required by Section 26C-241, the county landmarks commission shall apply the standards:

(a) Described in the purpose of this article, and

(b) Such additional standards as may be specifically delineated upon the particular sectional district map establishing the historic zoning district for a particular area.

(Ord. No. 5318 § 1, 2001.)

Exceptions & meaning →

Sec. 26C-243. - Appeal to planning commission and/or board of supervisors.

Any interested person(s) may appeal the decision of the county landmarks commission under this article to the Sonoma county planning commission in the manner required by Section 26C-331.

Any interested person(s) may appeal the decision of the planning commission under this article to the Sonoma County Board of Supervisors in the manner required by Section 26C-331.

(Ord. No. 5318 § 1, 2001.)

Exceptions & meaning →

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