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Article II — Parcel Map Procedures.

Sec. 25-15. - Tentative parcel map generally.

Sonoma County Municipal Code · 2026-09 edition · updated 2026-09-27 · Sonoma County

The tentative parcel map shall be drawn to scale on a paper not larger than eighteen inches (18″) by twenty-six inches (26″) in dimensions nor smaller than eight inches (8″) by eleven inches (11″) and shall contain the following information graphically shown thereon in a legible manner.

(a)

The boundary line of the original parcel with the dimensions based on the latest assessor's map or other record data, and the name, address and telephone number of the legal owner and person preparing the map.

(b)

The proposed division lines with dimensions and with a parcel letter or number designated on each new parcel.

(c)

The location of all existing surface and subsurface structures and all septic systems and wells located on the original parcel and adjacent parcels as might affect the design of the parcel being split together with their dimensions.

(d)

The distance from the structures to the boundary lines of the new parcels on which the structures are located.

(e)

The name, location, purposes and width of all existing interior, abutting and proposed streets and easements.

(f)

Lines indicating the direction of the slope of the land and the approximate percent of grade.

(Ord. No. 1875 § 2.)

(1)

Any portion of a site over fifty percent (50%) grade shall not be considered buildable. Development areas and roadways proposed on slopes in excess of ten percent (10%) shall require civil engineer prepared grading plans.

(2)

A base map of the site (defined as the project boundaries or general development area) and all adjoining properties within two hundred feet (200′) of the site at a scale and contour interval appropriate to clearly ascertain the topographical characteristics of the site and showing slope bands in the range of one percent (1%) to ten percent (10%); ten percent (10%) to fifty percent (50%); fifty percent (50%) and greater, shall be prepared. Said maps shall be prepared by a registered civil engineer or licensed land surveyor and method of slope determination indicated.

(Ord. No. 2510 § 3.)

(g)

Location of both natural and artificial water-courses and ponding areas, or areas of periodic inundation on the parcel being divided and on adjacent properties which might affect the design of the applicant's proposal.

(h)

North point and scale.

(i)

Such additional information as may be required by the zoning administrator.

(Ord. No. 1875 § 2.)

(Ord. No. 6523, § VII(Exh. D), 6-3-2025)

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