The Browning Hangar has stood beside Mueller Lake Park as a free, roofed public space for close to twenty years. No recorded document requires it to stay that way. Open Hangar Austin is the user group behind browninghangar.org. As of October 19, 2026, it says it knows of no adopted or recorded protection of public access to the hangar and no historic designation in effect. The City's Mueller redevelopment page lists December 31, 2027 as the end date of the agreement governing the project. This fall, master developer Banbury Development showed the first drawings of what a commercial version of the building could look like.
Under the arches, pétanque games, drum circles and birthday parties continue because the people in charge have allowed them. A remodel is now being drawn, and whether that permission turns into a written rule is an open question. Open Hangar Austin says it still doesn't know the last point at which the City can require access protections on its own.
Open since 2008, mostly by permission
The City built the hangar in 1943 for Robert Mueller Municipal Airport. According to Open Hangar Austin, its glue-laminated wooden arches were an answer to wartime limits on materials. The name comes from Browning Aerial Service, the flight school and aviation business Emma and Robert Browning ran at Mueller for four decades. The structure was stabilized and given a new roof in 2007 and 2008. Since then, a 2024 City advisory recommendation notes, it has been "utilized mostly for free by the public, small groups, and Mueller Lake Park patrons," alongside paid users who reserved it through the previous master developer, Catellus.
The Texas Farmers' Market gave the building its weekly rhythm for years. In 2021, KXAN reported that the market would move permanently to the new Mary Elizabeth Branch Park Pavilion on June 27, 2021. It still runs there on Sundays from 10 a.m. to 2 p.m.
The formal booking channel has gone quiet too. The hangar page on Mueller's own site still shows a request form, but its banner says reservations were accepted only for dates through June 1, 2023. In 2016, a leasing brochure from Catellus and CBRE, posted by Open Hangar Austin, said the hangar would see more than 65 events that year and drew about 2,500 market visitors per weekend. The building that remains today is busier with regulars than with bookings.
Who actually uses the floor now
Banbury's own presentation on October 13 described the hangar's regulars as people "that play pétanque, those that do the fantasy sword play, that do the drums." Users who spoke at the same meeting added birthday parties, picnics, band rehearsals, comedy and monthly tournaments, according to Open Hangar Austin's account of the testimony.
| When | What happens at or beside the hangar | Source |
|---|---|---|
| Fridays and Sundays, from about 3 p.m. until dark | Pétanque, the busiest days at the hangar | Legation Boules Club schedule |
| Wednesdays, 10 a.m., rainy days only | The club's French Legation game may move to the hangar | Legation Boules Club schedule |
| Weekdays, plus a free Saturday session | BBBrown Fitness classes on the catwalk behind the hangar | BBBrown Fitness |
| Sundays, 10 a.m. to 2 p.m. | The farmers market, now at Branch Park Pavilion | Texas Farmers' Market |
The Legation Boules Club says it organizes games only at the French Legation. It lists the hangar sessions as a public service and notes they run independently. That independence sums up the building. Nobody runs it. Open Hangar Austin says there is no shared calendar, no event organizer and no permanent restrooms, the picnic tables have been removed, and the roof is aging.
The people who use the space most often describe it in practical terms. One user who said he has used the hangar for 20 years told the commission on October 13:
"In warm weather, the sun is not in it. The little breeze from the lake comes in and makes it really comfortable in there."
That testimony comes from the meeting transcript posted by Open Hangar Austin.
What the August drawing actually shows
The proposal now in circulation is a massing study by Michael Hsu Office of Architecture, dated August 4, 2026. It shows a "single structure with two leasable areas flanking one side, with smaller accessory structures to the south," totaling 13,000 square feet. Five tenant spaces make up that total:
- Tenant A, 3,300 square feet
- Tenant B, 4,000 square feet
- Tenants C, D and E, 1,900 square feet each
The design draws on the site's own past. The deck says the new addition "mimics the placement & attachment of the offices or storage rooms of the original hangar," and the southern structure takes its form from warehouses that once stood south of the building. Renderings show views from Airport Boulevard and a proposed walkway running toward the lake.
The proposal has passed through two public rooms so far. The Historic Landmark Commission's Architectural Review Committee took up "Remodel the Browning hangar for adaptive reuse" at 4550 Mueller Blvd. on August 12. Its approved minutes say only that the committee provided feedback. Banbury then presented the design to the city's Mueller advisory commission, known as the RMMA PIAC, on October 13. Open Hangar Austin reports that, as of October 19, no tenant has been identified and no design approved.
The open question is how the floor gets shared. The drawing shows where tenants could go. It does not settle how much of the covered floor stays free to walk into, at what hours, or under whose rules.
The paperwork that would make it permanent
Most of the protections people assume are already in place have only been recommended. In order:
- 2002: The Historic Landmark Commission voted 8–0 and the Planning Commission 6–0 to recommend landmark zoning for the hangar, according to Open Hangar Austin.
- Early 2003: City Council postponed that zoning case. The group says it knows of no final vote.
- May 30, 2024: Council moved the end date of the Mueller Master Development Agreement, originally signed December 2, 2004, to December 31, 2027.
- August 13, 2024: PIAC asked Council to consider leasing the hangar as well as selling it, to secure public access "by way of a restrictive covenant, pedestrian access easement, or similar means," to plan for food, beverages and public restrooms, to pursue historic zoning, and to explore a nonprofit partner or conservancy. The vote was 8–0 with one abstention.
- November 2024: PIAC recommended starting covenant changes for public access "in perpetuity," even under commercial ownership, according to Open Hangar Austin.
- September 2025: Banbury Development took over as Mueller's master developer.
- August 11, 2026: City staff briefed PIAC on the types of covenants at Mueller and on "pending changes and clarifications as the Mueller Master Development Agreement concludes."
- December 31, 2027: The agreement ends.
PIAC's recommendations are advisory. Open Hangar Austin says Banbury has told the group it is pursuing historic designation. According to the group's City process page, Council and City staff decide the hangar's future under the 2004 agreement, and the Historic Landmark Commission reviews changes and recommends designation. The group also says the full approval path for a sale or lease is still unresolved. The 2024 recommendation names covenants and easements as possible tools, and that is the context for the August covenant briefing. The minutes from that meeting do not say which covenants would change.
Money is part of the picture too. Open Hangar Austin's capital plan puts improvements at roughly $2.6 million to $5.6 million and labels the figures planning estimates rather than bids. Leasable space is one way a building with an aging roof and no restrooms could cover those costs. That makes the access terms written alongside any lease the part that will shape a Sunday afternoon under the arches.
The next public meeting is November 10
Open Hangar Austin lists the next PIAC meeting for Tuesday, November 10, 2026. Check the City's PIAC meeting page for the final agenda. PIAC usually meets at 6 p.m. in the Assembly Room at Austin Energy Headquarters, 4815 Mueller Blvd. Members of the public can speak for up to three minutes, in person or by phone. To speak remotely, register by noon the day before with staff liaison Marrilee Archer at 512-974-7842.
The October 13 hangar presentation and meeting audio are posted in the City's 2026 PIAC archive. The original 2024 recommendation fits on one page. Between them, they show the gap between what has been asked for and what is in place. In the meantime, the pétanque crowd still arrives around 3 p.m. on Fridays and Sundays.
At Ace Team ATX, we follow places like the Browning Hangar because they shape everyday life in Mueller long before they show up in a listing. If you'd like to talk through what the end of the Mueller development agreement could mean for your street, or need help in English or Spanish, reach out. Let's find your Austin home.
