Why LA Permitted More ADUs Than Apartments in 2026 and What It Means

Every few months, another headline points to Los Angeles’s ADU boom as proof the city is finally solving its housing shortage. Backyard units are going up in Sun Valley, Reseda, and Van Nuys faster than almost anywhere else in the state, and it’s easy to read that as broad momentum on new housing supply. The permit data tells a more specific story. It isn’t that Los Angeles is building more housing across the board; it’s that one very particular kind of housing, small, individually financed, built on land that could never hold an apartment building in the first place, is filling a gap left by an apartment pipeline that’s actually shrinking. 

That distinction matters a great deal if you own, or are thinking about buying, an existing apartment building here. If you own a building in Koreatown or anywhere else in the city and you’re trying to figure out what this means for your own building’s value, the honest answer starts with understanding what ADUs actually are and aren’t competing with.

The Numbers, Precisely

According to a Crosstown analysis of nine years of Los Angeles Department of Building and Safety permit data, the city permitted 6,626 ADUs in the most recent full year measured, its second-highest total since the state’s 2017 ADU reform law took effect. In that same year, the city permitted only 7,038 new apartment units, the lowest annual total in more than ten years. ADUs accounted for about 43% of everything the city permitted for new housing. 

At the county level, the trend has continued: Los Angeles County added roughly 10,200 new ADUs in 2025 alone, about 40% of the county’s total new housing, according to USC’s Neighborhood Data for Social Change project. The city’s own housing target for the decade is 463,643 new units, and neither ADUs nor apartments are getting it there on their own, but the mix between the two has clearly flipped.

Why ADUs Are Winning the Permit Race

This isn’t a story about renters suddenly preferring backyard units to apartment buildings. It’s a story about which type of project can actually get built in today’s environment.

• Speed. A straightforward ADU using one of LADBS’s more than 20 pre-approved standard plans can get permitted in 21 to 30 days. A new apartment building goes through discretionary review, environmental analysis, and a plan-check process that regularly runs into years, and that’s before construction financing gets arranged. One recent account of an 8-unit South LA apartment project cited roughly 30 months just to work through permitting.
• Approval type. ADUs are approved ministerially, meaning the city has to approve a compliant application without public hearings or discretionary review. Larger apartment buildings don’t get that protection, and remain exposed to community opposition and process delays that don’t apply to a backyard unit.
• Financing. An ADU is typically financed by an individual homeowner through a HELOC, cash-out refinance, or savings, largely insulated from the kind of institutional construction lending that a new apartment building depends on. That matters more now than it did a year ago: the Federal Reserve raised rates on September 16, 2026, and construction loans for ground-up apartment projects got more expensive that day. A homeowner’s home equity line didn’t.
• Land access. ADUs can be built on any qualifying residential lot, including the large share of Los Angeles zoned for single-family use where a new apartment building could never be permitted at all. That opens up far more physical sites to ADU development than to conventional multifamily construction.

A New Law Actually Points This Back at Existing Apartment Owners

This is the part that applies directly to owners of existing apartment buildings, not just single-family homeowners. Under SB 1211, effective in 2025 and 2026, an existing multifamily property can now add up to 8 detached ADUs, up from a 2-unit cap under the prior rule, as long as the number of new ADUs doesn’t exceed the existing unit count. 

If you own an apartment building with underused yard space or surface parking that could be reconfigured, this is a real, legal path to added units and income on a property you already own, using the same fast, ministerial ADU process that’s been outpacing new apartment construction citywide. 

Parking generally isn’t a barrier either: most ADU projects in Los Angeles are exempt from added parking requirements, particularly near transit.

Talk to Max About What This Means for Your Building

Whether the right move is holding, adding ADUs to an existing lot, or selling into a market with genuinely thin new competition depends on your specific building. 

Book a call to talk through your options.

What Thin Apartment Supply Actually Means for Existing Buildings

An ADU and a professionally managed apartment building aren’t really substitutes for most renters or most investors. ADUs are overwhelmingly small-scale, scattered-site, individually owned units, concentrated in neighborhoods like Sun Valley, Reseda, and Van Nuys where large lots and single-family zoning make them easy to add. They don’t compete directly with a 20-unit building near a job center the way a new 200-unit development would. 

What they do reflect is a broader truth: the traditional new apartment pipeline in Los Angeles has been shrinking for years, and the permit data confirms it’s near a decade-low. For an owner of existing multifamily stock, that scarcity in new large-scale supply is generally supportive of rents and values over time, even as ADU headlines create the impression that new housing is booming.

For a fuller picture of where actual apartment construction stands right now, it’s worth reading this alongside our 2026 LA multifamily market report, which tracks deliveries and pipeline separately from the ADU trend.

Reading the Real Data Before You Decide Anything

Headlines about a Los Angeles housing boom can be misleading if you don’t look at what’s actually being permitted and where. Max Berger has spent over a decade tracking exactly this kind of data to help LA multifamily owners separate real market signals from noise.

If you want to know what this data means for your specific building, request a free valuation and get a clear answer.