Victorville | Lot Size and Subdivisions

Victorville Lot Size and Subdivisions: Lot Areas, Infill Lots, Maps, SB 9 Splits and SB 684

To subdivide is to divide one piece of land into two or more lots that can be sold separately. Victorville sets minimum lot sizes by zoning district in Table 8-2 of its Development Code and runs the map process in Chapter 4 of Title 16. Since Ordinance No. 2461 of November 18, 2025, the code also has its own section on the state lot split and small-lot laws, which it calls "urban subdivisions." This page covers lot sizes, the infill overlay that allows smaller lots, the map steps and both state routes. The Victorville overview gives the short version.

Minimum Lot Sizes by District

Source: Victorville Municipal Code Table 8-2 in Sec. 16-3.08.020.

Net lot area is the land inside the lot lines after streets are left out. Lot width is measured at the front setback line, the distance the house must sit back from the street, and lot depth runs from the front lot line to the rear lot line along the middle of the lot. A reverse corner lot, a corner lot whose side street lines up with the front of the lot behind it, needs 75 feet in R-1 and R-2. A lot on a cul-de-sac is measured at the front setback and needs the interior width. Table 8-2 adds one more rule for every district: "Every building site shall have a useable area equal to the minimum lot width and depth."

Section 16-3.08.010 says R-1 "may be divided into several density categories, and the suffix number shall indicate a minimum lot area in each density class." Table 8-2 prints the base case, R-1 (7,200). Check the full zone name on the Zoning Map, because a larger suffix sets a larger lot. Utility line easements do not count toward lot area: Section 16-4.05.040 excludes "the area of all public utility transmission line easements."

Smaller Lots in the Infill Overlay

The Low Density Residential Infill Overlay, added in February 2024, lets R-1 land in the city's core take smaller lots. It applies only to property "Located within R-1 (Single-Family Residential) zones" and "Not part of a previous residential subdivision," except contiguous property earlier split by a parcel map.

Source: Victorville Municipal Code Table 18-1 in Sec. 16-3.18.030.

The 9 per acre level "Requires an integrated development via the implementation of a planned unit development (PUD)," and most of its dimensions are set by that PUD. A planned unit development is a project-specific zoning approval, adopted by ordinance, that writes its own standards. Every residential subdivision in the overlay needs a tentative map. A single-family project over ten acres that uses the overlay must set up a homeowners association to maintain shared amenities, landscaping and drainage, and so must every PUD in the overlay. In a subdivision created under the overlay, outside a PUD, an unenclosed patio may reach up to ten feet into the rear setback if five feet remain to the rear line and the lot backs onto another lot with the same allowance.

The Map Process

California's Subdivision Map Act sets the base process for dividing land, and Section 16-4.01.010 says that where Chapter 4 "is not in conformity with the Subdivision Map Act, the Subdivision Map Act shall take precedence." A tentative map is the first, detailed drawing of the proposed lots, which the City approves with conditions. A final map or, for smaller divisions, a parcel map is the surveyed map that is recorded with the County once the conditions are met.

• Tentative maps. The Planning Commission approves them and must find the subdivision consistent with the General Plan or a specific plan. An approved map "shall expire forty-eight months after its approval," with extensions by the Commission or under state law.
• Small changes. The City Manager or a designee may approve changes that "do not deviate substantially" from the approved map, such as fewer lots, larger or smaller lots, or fewer phases. Larger changes go back to the Commission.
• Final maps. The City Manager or a designee approves final and parcel maps. The City Council gets notice at its next meeting, and the map "shall be approved or disapproved within 10 days of the City Council meeting" that carried the notice. An appeal to the Council must be filed within 10 days.
• Parcel maps. Three paper prints come first for checking; once the filed map is complete, the City completes its certificates "within 20 days of the submittal," and places a notice of pending approval on the next Council agenda.
• Off-site land. No subdivision application is accepted until the subdivider has the easements it needs or shows good faith attempts to buy them, including at least one certified letter to the owner.
• Lines that may not be crossed. "No lots or parcels shall be divided by a school district, special tax district, City boundary line or zoning district."

Lot and Block Design

Section 16-4.05.040 sets the layout rules. Blocks must be wide enough for "two tiers of lots." In a residential subdivision, reverse corner lots "shall not exceed three percent of the total lot count." Lots on a cul-de-sac turnaround need at least thirty feet of frontage. Single-family lots may not front on or take access from an arterial or collector street, except lots of half an acre or more with at least one hundred feet of frontage, with Commission approval. Lots that back onto a collector give the City a ten foot wide lettered strip for a Landscape Maintenance Assessment District (LMAD), a district that charges owners for the landscaping it maintains; lots that back or side onto an arterial give a seven foot strip. A residential subdivision next to commercial or industrial land needs a buffer street and a six-foot masonry wall on the shared line.

Title 17, the older subdivision title from 1985, is still in the code. Section 16-4.01.010 explains that Title 16 "is administered by the Development Department, while Title 17 is administered by the Engineering Department." Title 17 adds that every lot, except some on curves and cul-de-sacs, needs "a minimum of thirty feet of frontage on a public street" and at least forty-two feet of width at the front setback, and that corner lots must be five feet wider than the Title 16 minimum.

State Routes: SB 9 Splits and Small-Lot Maps

Section 16-3.08.050 says its purpose is "to implement California Government Code Sections 65852.21, 65852.28, 65913.4.5, 66411.7, and 66499.41." Both routes are decided by the Zoning Administrator, ministerially, "within sixty (60) calendar days from the date the City determines the application to be complete." A denial needs written findings of "a specific, adverse impact on public health or safety."

Sources: Victorville Municipal Code Sec. 16-3.08.050 and Tables 8-4 and 8-5; Government Code 66411.7 and 66499.41.

SB 9 urban lot split. None of the new lots may be smaller than 40 percent of the original parcel or 1,200 square feet, whichever is larger. No more than two homes of any kind may stand on each new lot, ADUs included. A final map must be recorded before building permits are issued. The split needs no street improvements or right-of-way dedication, and the owner signs a three-year occupancy affidavit before the final map is recorded. New buildings need only 4 foot side and rear setbacks. A lot "previously established through an urban dwelling unit project or urban subdivision" may not use the section again, and neither may an owner who already split an adjacent lot under it.

Small-lot subdivision. This route carries out SB 684 and SB 1123. The average floor area of the new homes "shall not exceed 1,750 net habitable square feet." A remainder parcel may exceed the 10-lot limit but may not hold new homes. Victorville requires access to every new lot "in the form of right-of-way dedication and off-site improvements" as a condition of the final map, and the maps must meet the objective rules of Chapter 4. A building permit may come before the map is recorded if the owner records a covenant that no certificate of occupancy will issue until it is. Table 8-5 sets a minimum density of 20 homes per gross acre and minimum floor area ratios of 1.0 for 3 to 7 homes and 1.25 for 8 to 10. Floor area ratio is building floor area divided by lot area.

Sites that cannot use either route. The section lists sites where "All existing discretionary review processing and zoning requirements shall apply," including prime farmland, wetlands, land under a conservation easement, very high fire hazard zones unless the risk is mitigated, flood hazard areas, and "Habitat for protected species including properties containing one or more Western Joshua Trees." Projects may not demolish or alter rent-restricted homes or homes rented within the past three years for a lot split, or five years for a small-lot map.

Where the Code Disagrees With Itself

• Flag lots. Section 16-3.08.090 says "Through lots, flag lots and reverse frontage lots are prohibited." Section 16-4.05.040 and Title 17 say they "shall be avoided except where essential." The design guideline uses mandatory language, so plan on no flag lots in a new subdivision.
• Easements in lot area. Section 16-4.05.040 excludes utility transmission line easements from the area of every lot; Title 17, Section 17.48.040 excludes them only from lots under ten thousand square feet. Title 16 is the newer rule.
• Lot line adjustments. Section 16-4.01.050 gives lot mergers and lot line adjustments to the Zoning Administrator; Table 5-1 lists both as staff decisions.

Where to Go Next

Related on VanPlex: the Victorville overview, the SB 9 page and the SB 684 and SB 1123 page.

Frequently Asked Questions

Official sources (checked October 2026)