Los Angeles’ Mansion Tax Is Back in the Spotlight
What new research says about Measure ULA, housing development, real estate activity, and the larger conversation surrounding Los Angeles’ housing market.
Los Angeles’ so-called “mansion tax” is once again at the center of the conversation around housing, development, and the future of the city’s real estate market.
More than three years after Measure ULA began collecting taxes on higher-value property transfers, a recent RAND Corporation study is offering one of the clearest looks yet at how the policy may be affecting real estate activity across Los Angeles.
And the findings have renewed an important question: Can a policy designed to fund more housing unintentionally make it harder to build it?
What Is Measure ULA?
Measure ULA, formally known as United to House LA, was approved by Los Angeles voters in November 2022 with the goal of creating a dedicated source of funding for affordable housing and homelessness prevention.
The measure created an additional transfer tax on higher-value real estate transactions within the City of Los Angeles.
Additional tax on qualifying property transfers above the lower ULA threshold and below the upper threshold.
Additional tax applicable to transactions exceeding the higher-value ULA threshold.
As of July 1, 2026, properties transferring for more than $5.4 million but less than $10.9 million are subject to an additional 4% ULA tax, while transactions of $10.9 million or more are subject to an additional 5.5% tax.
Those charges are in addition to the City of Los Angeles’ existing transfer tax.
Although the policy is widely referred to as a “mansion tax,” it does not apply exclusively to luxury homes. The tax can also affect apartment buildings, commercial properties, development sites, and other real estate crossing the applicable price thresholds.
What the New Research Found
A 2026 study from the RAND Corporation examined the impact Measure ULA has had on real estate transactions, development, employment, and public revenue since collections began in April 2023.
According to RAND, Measure ULA has raised approximately $1.2 billion for affordable housing and tenant assistance.
The research also found a significant impact on construction employment associated with the reduction in development.
The findings have attracted attention throughout the real estate and development industries because they illustrate how strongly transaction costs can influence whether owners decide to sell and whether developers decide a project remains financially feasible.
Why a Transfer Tax Can Affect More Than Luxury Home Sales
One of the biggest misconceptions surrounding Measure ULA is that its impact is limited to sellers of expensive single-family homes.
In reality, many of the properties crossing the ULA threshold are investment and development properties.
Consider a developer purchasing an apartment building, redeveloping a property, or constructing a new multifamily project. The additional tax due when that property eventually changes hands becomes another expense that has to be incorporated into the project's economics.
When construction costs, financing, insurance, labor, permitting, and land prices are already elevated, an additional transaction cost can materially change the financial viability of a project.
That can lead owners to hold properties longer, buyers to adjust what they are willing to pay, or developers to pursue projects outside Los Angeles instead.
And when fewer properties trade hands, the effects can move well beyond the luxury housing market.
At the Same Time, Measure ULA Is Funding Housing Programs
The conversation around ULA is not entirely one-sided.
The measure has generated significant funding for housing and homelessness programs.
According to the Los Angeles Housing Department, 70% of ULA program funding is directed toward affordable housing programs, while 30% supports homelessness prevention efforts.
The City has already allocated hundreds of millions of dollars toward affordable housing production, preservation, rental assistance, and other programs intended to keep vulnerable residents housed.
Can Los Angeles continue generating meaningful funding for affordable housing while also keeping private development financially viable?
Could Measure ULA Be Reworked?
The RAND study does not simply examine the effects of the existing policy. Researchers also modeled potential reforms.
Their analysis found that targeted changes to the tax could potentially stimulate substantially more development while preserving much of the revenue currently generated by ULA.
One reform scenario modeled by RAND could also generate approximately $823 million in additional municipal revenue while preserving an estimated 72% of existing ULA revenue.
That has increasingly shifted the conversation away from a simple debate over whether Measure ULA should exist toward a more nuanced discussion about how the tax could be structured.
What This Means for Los Angeles Property Owners
For most homeowners, Measure ULA will never directly apply.
But for owners of higher-value residential property, apartment buildings, development sites, and commercial real estate within the City of Los Angeles, it has become an important part of the financial planning surrounding a sale.
Because the tax applies to the gross value of a qualifying property transfer rather than simply the seller's profit, the potential tax obligation can be significant.
It can influence pricing strategy, timing, negotiations, and ultimately a seller's net proceeds.
And because the thresholds adjust periodically, property owners considering a future sale should understand the rules that apply at the time their transaction closes.
Los Angeles needs more housing. It also needs sustainable ways to fund it.
The emerging debate around Measure ULA shows how difficult it can be to accomplish both goals at the same time.
The latest research does not necessarily settle the debate surrounding the policy. But it does provide important new data about how taxes, development economics, and housing supply are interconnected.
For buyers, sellers, developers, and anyone following the Los Angeles real estate market, Measure ULA will remain an important issue to watch as policymakers consider what comes next.
Have questions about how Measure ULA could affect the sale of your Los Angeles property?
From pricing and timing to understanding the costs surrounding a high-value transaction, having the right strategy matters. Our team can help you evaluate your property, the current market, and the considerations that may shape your next move.
