Article 3
Los Altos Hills Zoning Code · 2026-07 edition · ingested 2026-07-06 · Los Altos Hills
Establishment of Districts and General Provisions
§ 10-1.301. Established. ¶
The following use districts are hereby established:
(a) Residential-Agricultural (R-A); and
(b) Open Space Reserve (OSR).
(§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.302. Zoning map. ¶
The districts established by Section 10-1.301 of this article and the boundaries thereof are shown upon that certain map entitled "Zoning Map for the Town of Los Altos Hills, California," which map and all notations and information thereon are adopted by reference and made a part of this chapter as though set forth in this chapter in full. The zoning map, for convenience, may be divided into section maps, and each section map may be separately referred to or amended for the purposes of amending the zoning map. The zoning map and each of its section maps, and the notations, references, and other information shown thereon, shall be as much a part of this chapter as if the matters and information set forth by such maps were all fully described in this chapter.
(§ 1 Ord. 305, eff. October 3, 1986)
§ 10-1.303. Amendments to the zoning map. ¶
(a) The zoning map of the Town is amended to rezone that portion of the ResidentialAgricultural District shown upon that certain map marked "Exhibit A" and attached to Ordinance No. 151 of the Town from Residential-Agricultural District to Open Space Reserve District.
(b) The zoning map of the Town is amended to rezone that portion of the ResidentialAgricultural District shown upon that certain map marked "Exhibit A" and attached to Ordinance No. 157 of the Town from Residential-Agricultural District to Open Space Reserve District.
(c) The zoning map for the Town is amended to include within the Residential-Agricultural (RA) District that certain real property shown and delineated on the Section Zoning Map marked "Exhibit A" and attached to Ordinance No. 237 of the Town which map is incorporated and made a part of this section by reference.
(d) The zoning map for the Town is amended to include within the Residential-Agricultural (RA) District that certain real property shown and delineated on the Section Zoning Map marked Exhibit "A" and attached to Ordinance No. 238 of the Town which map is incorporated and made a part of this section by reference.
(e) The zoning map for the City of the Town of Los Altos Hills, California, is hereby amended to include within the Residential-Agricultural (RA) District that certain real property shown and delineated on the Section Zoning Map marked "Exhibit A" and attached hereto, which map is hereby incorporated and made a part hereof by reference.
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Town of Los Altos Hills, CA § 10-1.303
LOS ALTOS HILLS CODE
§ 10-1.308
(f) The zoning map for the City of the Town of Los Altos Hills, California, is hereby amended to include within the Residential-Agricultural (RA) District that certain real property shown and delineated on the Section Zoning "Exhibit A" and attached hereto, which map is hereby incorporated and made a part hereof by reference.
(§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.304. Zoning map—Notations of amendments. ¶
If changes are made in district boundaries or other matters portrayed on the zoning map, such changes shall be made on the zoning map promptly after the amendment has been approved by the Council, together with an entry on the zoning map indicating the ordinance number authorizing such change and the date upon which such change becomes effective. (§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.305. Uncertainties in boundaries. ¶
Wherever any uncertainty exists as to the boundary of any district as shown on the zoning map, the following rules shall control:
(a) Where a boundary line is indicated as following a street, the boundary line shall be construed as following the centerline of such street.
(b) Where a boundary line is indicated as approximately following a property line, the property line shall be construed to be the boundary.
(c) Where a boundary line crosses property under one ownership, the boundary line shall be determined by the use of the notation or scale designated on the map.
(d) Where further uncertainty exists, the Planning Commission, upon a written application or on its own motion, shall determine the location of the boundary in question, giving due consideration to the location indicated on the zoning map and the purposes of this chapter.
(§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.306. Prezoning adjoining unincorporated lands and zoning annexed lands. ¶
Adjoining lands in unincorporated territory may be prezoned by amending the zoning map to include such land in a zoning district category. In the event any prezoned lands are subsequently annexed to the Town, the zoning indicated on the map shall become effective at the time of annexation. All other lands annexed to the Town shall be in the Open Space Reserve (OSR) District until otherwise classified.
(§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.307. Unclassified land. ¶
In every case where any land has not been specifically included within a district, or if any district is determined to be invalid or inapplicable, such land is hereby declared to be in the ResidentialAgricultural (R-A) District until otherwise classified. (§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.308. Building moving. ¶
No building shall be moved onto any site in the Town except by a permit granted by the
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Town of Los Altos Hills, CA § 10-1.308
ZONING AND SITE DEVELOPMENT
§ 10-1.310
Council and, if granted, upon conditions and restrictions deemed reasonable and only after the consideration and report of the Planning Commission. (§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.309. Conformity required. ¶
Except as otherwise provided in this chapter:
(a) Land or structures in any district shall hereafter be used only for the purposes listed in this chapter as permitted in that district, and in accordance with the regulations established by this chapter for that district, and in accordance with any conditions and requirements which may have been established in connection with the authorization of any variance or the granting of any conditional use permit.
(b) No structure shall be erected, reconstructed, relocated, or structurally altered to have a greater bulk or higher proportion of parcel coverage than permissible under the limitations set forth in this chapter for the district in which the structure is located. If already greater than the maximum permitted, it shall not be further increased.
(c) No open space or off-street parking space existing or provided hereafter about any structure shall be reduced below the minimum requirement set forth in this chapter for such open space or parking space. If already less than such minimum requirements, it shall not be further reduced.
(d) No parcel or lot held under one ownership as of January 1, 1973 shall be reduced in dimension or area so as to be smaller than required by the provisions of this chapter. If already less in dimension or area, the dimension or area shall not be further reduced.
(e) No parcel or lot created contrary to the requirements of the subdivision provisions set forth in Chapter 1 of Title 9 of the Los Altos Hills Municipal Code shall be used for any primary use.
(§ 1, Ord. 305, eff. October 3, 1986)
§ 10-1.310. Zoning permit—When required. ¶
A zoning permit issued by the Planning Officer shall be required for:
(a) All buildings or structures hereafter erected, constructed, or moved within or into the Town, or
(b) All buildings or structures hereafter altered or repaired resulting in an increase in the external dimensions of the building or structure, or
(c) The use of vacant land or for a change in the use of any land within any zoning district established pursuant to the zoning law of the City of the Town of Los Altos Hills. The application for a zoning permit shall be accompanied by a fee, the amount of which shall be established by a resolution of the City Council.
A zoning permit shall not be issued for any building, structure or use which would violate the provisions of the zoning law of the Town. Neither a building permit not a site development permit shall be issued until a zoning permit has been obtained.
- (d) Trailer coaches intended to be used as temporary residences during construction or
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Town of Los Altos Hills, CA
LOS ALTOS HILLS CODE
§ 10-1.310
§ 10-1.310
substantial remodeling of a primary dwelling.
(§ 1, Ord. 305, eff. October 3, 1986; § 2, Ord. 334, eff. July 20, 1990)
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Town of Los Altos Hills, CA § 10-1.401
ZONING AND SITE DEVELOPMENT
§ 10-1.401