Texas Tried to Legalize ADUs Statewide — Here's What Happened and What's Next

The Bill That Almost Changed Everything

In April 2025, the Texas Senate passed SB 673 — a bill that would have prohibited Texas municipalities from banning accessory dwelling units and mandated 60-day permit approval timelines statewide.

It passed the Senate 27–4. Then it went to the House, and died.

This wasn't the first time. A similar bill failed in the 2023 legislative session. The second attempt passed the Senate by an even wider margin — and still couldn't clear the House. For homeowners watching the ADU space in Texas, this was a familiar outcome.

What SB 673 Would Have Done

If it had passed into law, SB 673 would have:

Overridden local ADU bans. Dallas currently only allows ADUs in neighborhoods with an Accessory Dwelling Unit Overlay (ADUO) designation, or through a Board of Adjustment exception. SB 673 would have eliminated that restriction, allowing any Dallas homeowner to build an ADU by right.

Required 60-day permit approval. Cities currently have no mandated timeline for ADU permit review. Some cities take weeks; others stretch into months. SB 673 would have capped that at 60 days.

Removed owner-occupancy requirements. Several DFW cities require homeowners to live on the property to rent out an ADU. SB 673 would have prohibited those requirements.

Standardized setback rules. The bill would have prevented cities from imposing ADU-specific setback rules more restrictive than what's required for the primary dwelling.

Why It Matters That It Passed the Senate So Decisively

A 27–4 Senate vote is not a close call. It signals that the upper chamber of the Texas Legislature has broad, bipartisan consensus that statewide ADU legalization is good policy.

The resistance lives in the House — specifically in the Local and Consent Calendars Committee, where ADU legislation has stalled in both 2023 and 2025. The committee's reluctance reflects organized opposition from some municipalities and homeowner associations who want to preserve local control over land use.

But the trajectory matters. The 2023 bill never got a Senate vote. The 2025 bill passed the Senate easily. Each session, the coalition supporting statewide ADU rights grows larger and more organized.

What's Expected in 2027

Texas holds legislative sessions every two years. The next session opens in January 2027.

Based on the pattern — widening Senate support, narrowing House resistance, and growing public awareness — most observers expect ADU legislation to be reintroduced in 2027. Whether it passes depends on factors that are difficult to predict: committee assignments, floor scheduling, competing legislative priorities, and how much the housing affordability conversation has moved in the intervening two years.

What's notable is that every ADU bill that fails in the Texas Legislature generates coverage in local media. That coverage drives search traffic — specifically from homeowners who Google "can I build ADU in Texas" after reading a news story. This site is designed to be the definitive resource for those searches, regardless of where the legislation lands.

What This Means for DFW Homeowners Right Now

The most important takeaway from the SB 673 story: you don't have to wait for legislation to build a garage apartment in DFW.

Most DFW cities already allow ADUs in some form. Fort Worth permits them by right in most residential zones. Denton is the most permissive city in North Texas. Arlington is ADU-friendly. Mansfield, Burleson, and Aledo all have workable ADU rules for homeowners willing to navigate the permit process.

Even Dallas — the most restrictive major city in the area — has options: ADUO overlay neighborhoods and Board of Adjustment exceptions.

If legislation passes in 2027, Dallas restrictions may be overridden and owner-occupancy requirements may disappear. But that's 12+ months away, and permit timelines mean a project started today could be complete before legislation takes effect.

The homeowners who are building now aren't betting on legislation. They're acting on what's already allowed.

The Rental Market Argument

One reason ADU legislation keeps gaining ground in Texas: the housing shortage is real, and accessory dwelling units are one of the fastest ways to add housing supply without major infrastructure investment.

A garage apartment built in an existing neighborhood doesn't require new roads, new water mains, or new schools. It adds housing supply in exactly the places where people already want to live — walkable urban neighborhoods, near job centers, close to family.

The Texas housing affordability crisis is becoming a kitchen-table issue for more voters each cycle. That's tailwind for ADU legislation in 2027.

Bookmark This Page

We update this page whenever new developments happen in Texas ADU legislation — new bills introduced, committee hearings, votes, and whatever comes out of the 2027 session.

If you're tracking this space, the best thing you can do is build your garage apartment now (while you know what the rules are) and stay informed about what might change.