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Portola Valley City Zoning Code

CHAPTER 18

14 - R-1 SINGLE-FAMILY RESIDENTIAL DISTRICT REGULATIONS

18.14.010 - Intention—Applicable regulations.

The class of district is intended to promote and encourage the establishment and maintenance of a suitable environment for rural-urban family living on parcels of sizes adequate to accommodate single-family dwellings of differing characteristics, enhance privacy, preserve the visual amenities of existing open space to the maximum extent feasible, and preclude unwarranted reductions in parcel sizes. Any parcel in an R-1 district may be occupied by a principal use listed in Section 18.14.020 or, when authorized by the planning commission, by a conditional use listed in Section 18.14.030, together with uses accessory to such principal use or conditional use as specified in Section 18.14.040. Use of any parcel is subject to:

A.

The provisions governing accessory uses set forth in Chapter 18.42;

B.

Parcel area, open area, and bulk requirement set forth in Chapters 18.42 and 18.48 through 18.60;

C.

The off-street parking requirements set forth in Chapter 18.60;

D.

The provisions regulating nonconforming uses set forth in Chapter 18.46;

E.

The required conditions set forth in Section 18.14.050;

F.

Special building setback lines set forth in Chapter 18.58.

(Ord. 1967-80 § 1 (6502), 1967)

18.14.020 - Principal uses permitted.

Principal uses permitted in the R-1 district shall be as follows:

A.

Uses permitted by Section 18.36.010;

B.

Single-family dwellings, including group homes that do not provide licensable services; residential care facilities and group homes that provide licensable services to six or fewer persons; supportive housing; and transitional housing;

C.

Temporary uses permitted by Section 18.36.030;

D.

Public school when located in conformance with the general plan.

(Ord. 2024-451 § 1 (Att. A), 2024; Ord. 2024-450 § 1 (Att. A), 2024; Ord. 2022-448 § 3, 2022; Ord. 2011-390 § 5, 2011; Ord. 1987-224 § 1 (part), 1987: Ord. 1967-80 § 1 (6502.1), 1967)

18.14.030 - Conditional use permitted.

The following uses shall be permitted only when a conditional use permit is granted therefor as provided in Chapter 18.72:

A.

Uses permitted by Section 18.36.020;

B.

Residential care facilities and group homes that provide licensable services to seven or more persons;

C.

Residential planned unit developments as regulated by Chapters 18.44 and 18.72;

D.

Landscaping, open space, growing of plants and similar low intensity uses each of which is attendant to adjoining uses in the C-C district, provided such uses are not required to meet the requirements of Chapters 18.42 and 18.48 through 18.60;

E.

Publicly-owned park, recreation or open space areas when located in conformance with the general plan;

F.

Fire stations when located in conformance with the general plan. Development standards, including but not limited to, floor area, setbacks and parking, shall be established by the decision-making body.

(Ord. 2024-451 § 1 (Att. A), 2024; Ord. 2024-450 § 1 (Att. A), 2024; Ord. 2021-441 § 1, 2021; Ord. 2011-390 § 5, 2011; Ord. 1987-224 § 2 (part), 1987; Ord. 1979-166 § 21 (part), 1979; Ord. 1971-113 § 4, 1971; Ord. 1967-80 § 1 (6502.2), 1967)

18.14.040 - Accessory uses permitted.

A. Accessory uses permitted in the R-1 district shall be as follows:

B.

Accessory uses as permitted in Section 18.36.040 and Chapter 18.42;

C.

Accessory uses permitted by subsections B, D, E, F, G, H, I, J and K of Section 18.12.040;

D.

Household pets permitted by town ordinances.

(Ord. 2024-451 § 1 (Att. A), 2024; Ord. 2024-450 § 1 (Att. A), 2024; Ord. 1991-263 § 6, 1991; Ord. 1967-80 § 1 (6502.3), 1967)

18.14.050 - Required conditions.

A. Required conditions in the R-1 district shall be as follows:

B.

Required conditions as stipulated by subsections A, B and C of Section 18.12.050;

C.

Conformance with the requirements set forth in Section 18.37.010.

(Ord. 2024-451 § 1 (Att. A), 2024; Ord. 2024-450 § 1 (Att. A), 2024; Ord. 1994-279 § 2 (part), 1994; Ord. 1994-276 § 4 Exh. A (part), 1994; Ord. 1979-166 § 21 (part), 1979: Ord. 1971-112 § 2, 1971; Ord. 1967-80 § 1 (6502.4), 1967)