Home · Market Data · Zoning & Density Map
Laguna Beach, Calif. · Updated November 11, 2026
Southern California Zoning & Density Map
How many homes can be built on a piece of land, and why it matters to your price, your neighborhood, and your next move. Explore planned density across Orange, Los Angeles, Riverside, San Bernardino and San Diego counties, then read our plain-English guide to every color.
Planned housing density, five counties
How to read the colors
The default view, Allowed density, colors each area by the maximum number of homes its general plan allows per acre. Warm, light colors mean fewer homes per acre; deeper reds and purples mean more. The scale runs from light yellow (rural, up to 1 home per acre) through gold (typical single-family), orange (small-lot homes and townhomes), red (apartments and condos) to purple (mid-rise and high-rise centers).
Green is open space, parks, agriculture and water. Gray is land where the plan does not allow homes, such as commercial, office, industrial, schools and other public uses. Pale blue marks specific plan areas, where the density is written into a separate plan document. A lighter tint means the free public data does not publish a numeric density for that area, so we estimated the band from the land-use type. Tap the area and the popup will say so.
Switch to Land-use type to see the same land by category: rural residential, single-family, multifamily, mobile home, mixed use, commercial, industrial, public, open space and agriculture. It is the quickest way to spot mixed-use corridors and employment areas near a home you are considering.
What “dwelling units per acre” means
A dwelling unit is one home: a house, a condo, a townhome or an apartment. An acre is 43,560 square feet, about the size of a football field without the end zones. So “8 du/acre” means the plan allows up to eight homes on each acre of land.
| Lot or building | Approximate density |
|---|---|
| One house on a 1-acre lot | 1 du/acre |
| One house on a 7,000 sq ft lot (typical suburb) | About 5 to 6 du/acre after streets |
| One house on a 3,500 sq ft small lot, or a duplex on 7,000 sq ft | About 10 to 12 du/acre |
| Three-story townhome community | About 15 to 25 du/acre |
| Four or five-story apartments over podium parking | About 40 to 80+ du/acre |
The number is a ceiling, not a promise. What can actually be built also depends on the zoning code (height, setbacks, lot coverage, parking), the coastal zone, fire-hazard and flood rules, HOA covenants, and state laws such as the ADU statutes, SB 9, and the State Density Bonus Law, which can allow more homes than the map shows.
What each density band typically looks like
Rural, estate and hillside
Horse properties, ranch and agricultural land, desert and mountain parcels, and large hillside estates. One home per acre means each lot is at least about 43,560 square feet, roughly the playing field of an American football field. Expect private wells or septic in some areas, long setbacks, and very little new construction nearby.
Classic single-family suburbs
Most Southern California tract and custom-home neighborhoods. A typical 6,000 to 7,500 square foot lot works out to about 5 to 7 homes per acre once streets are counted. Buyers get yards and garages; under state law many of these lots can still add an ADU or junior ADU, and some can use SB 9 for a second home or a lot split.
Small-lot homes, duplexes and townhomes
Small-lot single-family, duplex and triplex streets, cottage courts, mobile-home parks and newer detached condo communities. Lots are often 2,500 to 5,000 square feet. These areas tend to offer lower entry prices than the surrounding single-family neighborhoods while keeping a residential feel.
Townhomes and garden apartments
Two and three-story townhomes, garden-style apartments and condos, often with an HOA. Thirty homes per acre is also California's default density for affordable-housing sites in metropolitan jurisdictions, so much of the new Housing Element zoning lands in this band.
Low and mid-rise apartments and condos
Three to five-story apartment and condo buildings, frequently over podium parking, along commercial corridors and near transit. Expect more renters, walkable retail, and an active pipeline of new projects.
Mid-rise and high-rise urban centers
Downtowns, regional centers and station areas, including downtown Los Angeles, Long Beach and San Diego and business districts such as the Irvine Business Complex. This is where most new condos and high-rise rentals are built.
Parks, preserves, beaches, agriculture and water. Usually no new homes are allowed, which helps protect views and neighborhood edges.
Commercial, office, industrial, and public land such as schools, airports and utilities, where the plan does not allow homes.
Areas such as master-planned communities, where density is set in a separate specific plan document instead of the general plan map.
What it means for buyers and sellers
Price and land value
Land that allows more homes is usually worth more per square foot of lot, because a builder can spread the land cost over more units. In single-family areas the opposite is true for the buyer: low allowed density keeps lots large and supply tight, which supports values but limits entry-level options. When you compare two similar homes, check whether one sits on land planned for more units. That difference can show up in the appraisal and in investor demand.
Inventory and new construction
Red and purple corridors are where most new condos, townhomes and apartments are planned. For buyers, that means more choices and builder incentives over time; for owners nearby, it can mean construction traffic and more competition when you resell a similar product. Gold and yellow areas rarely add many new homes, so resale inventory stays the main supply.
ADUs and extra income
Even in gold, single-family areas, California law generally allows an accessory dwelling unit and a junior ADU on a lot with a house, and SB 9 can allow a second home or a lot split on many single-family lots. If rental income or multigenerational living matters to you, ask us to check the lot size, utilities, setbacks and any HOA rules before you write an offer.
Several cities and counties in Orange, Los Angeles, Riverside, San Bernardino and San Diego publish free, pre-approved or permit-ready ADU plan sets. A site plan, Title 24 energy documents, soils work and fees are often still required, and the plans must be submitted to that city or county. Confirm the current version and site-specific requirements with the city. Official links are on our free pre-approved ADU plans list.
Redevelopment and assemblage
Older homes on land planned for 18 or more homes per acre can attract developers who want to combine lots. Sellers in those areas should get a land-value opinion as well as a house-value opinion before listing; the higher number sometimes comes from a builder, not a homeowner.
Neighborhood character, views and traffic
Before you buy, look at the colors around the home, not only the lot itself. A red or purple parcel across the street, or a mixed-use corridor two blocks away, can mean taller buildings, more foot traffic and more shops later. Green open space next door is often the best protection for a view.
Seller checklist
Know your parcel's designation and allowed density, any specific plan that applies, and whether an ADU or SB 9 split could add value for the next owner. Put that information in your marketing; buyers and investors pay for upside they can verify.
County by county
Use Show on map to fly the map to each county or city, or open our local market guides.
Orange County
Orange County's plans pair coastal and hillside single-family neighborhoods with denser, mixed-use corridors in Irvine, Santa Ana, Anaheim and along major boulevards. By acreage, about 56% of the land planned for homes allows 8 or fewer homes per acre, and 16% allows more than 18.
Los Angeles County
Los Angeles County runs from one-home-per-acre canyon and Antelope Valley land to some of the highest planned densities in California around downtown, Koreatown, Long Beach and transit corridors. By acreage, about 79% of the land planned for homes allows 8 or fewer homes per acre (much of it rural), and 7% allows more than 18.
Riverside County
Riverside County mixes rural and estate land, which is much of the county, with suburban tracts along I-15 and I-215 and denser centers in Riverside, Corona and Temecula. By acreage, about 98% of the land planned for homes allows 8 or fewer homes per acre (much of it rural), and 1% allows more than 18.
San Bernardino County
San Bernardino County is mostly rural, desert and mountain land. Most of the higher-density planning is in the valley cities such as Ontario, Rancho Cucamonga, Fontana and San Bernardino. By acreage, about 99% of the land planned for homes allows 8 or fewer homes per acre (much of it rural), and under 1% allows more than 18.
San Diego County
San Diego County combines the City of San Diego's community plans, many with high-density transit areas, with semi-rural and rural backcountry under the County General Plan. By acreage, about 91% of the land planned for homes allows 8 or fewer homes per acre (much of it rural), and 4% allows more than 18.
Coverage and limits
What the map is based on
- Planned density and land-use colors come from public planning records. In some cities a numeric density is not published, so those areas are shown with a lighter, estimated tint.
- Legend checkboxes add flood, fire, earthquake and tsunami layers from government hazard maps, plus public schools, school district lines and Housing Element sites from public planning inventories. Screening only. Attendance areas, where shown, are historical and may not match current assignments; confirm the assigned school with the district. A Housing Element listing is a planning inventory, not a permit. Some cities are not shown; those gaps are listed on the housing-sites guide. How to read the school layer.
- Basemap © OpenStreetMap contributors, tiles by OpenFreeMap (OpenMapTiles). Map software: MapLibre GL JS and PMTiles (open source).
Known gaps
The planning data may not include the newest rezonings and amendments. Some residential parcels have no published maximum density, and those are shown as estimates. Specific plan areas, common in master-planned communities and in parts of Riverside and San Bernardino counties, need the specific plan document for exact numbers. Boundaries are simplified so the map loads quickly; use the city’s official parcel viewer for lot lines.
Want a parcel-level read on a home you are buying or selling? Call or text 833-THIS-BROKER or request a call.