A significant early morning Muskego fire has destroyed large portions of Bass Bay Brewhouse, prompting police and fire crews to evacuate the building and surrounding residential areas. The blaze broke out Friday at the lakeside restaurant located at S79 W15851 Aud Mar Drive, according to the Muskego Police Department.
Officials reported that as of 7 a.m., firefighters were actively battling the flames, and the public was urged to avoid the area near Ladwig Drive and Aud Mar Drive while emergency crews worked to contain the situation.
Police Issue Road Closures and Evacuation Notice
In a statement posted on Facebook, the Muskego Police Department said, “Please avoid the area of Ladwig Dr. and Aud Mar Dr. due to a structure fire being actively faught at Bass Bay Brew House. At this time, the restaurant/residential portion are both believed to be fully evacuated. If your morning commute involves Woods Rd., we are asking that you avoid the portion between Lannon Dr. and Moorland Rd. until further notice.”
Authorities confirmed that both the restaurant and its attached residential section were fully evacuated, with no injuries reported. Woods Road commuters were instructed to reroute as road closures remained in effect.
Cause of Muskego Fire Still Unknown
#Breaking Firefighters on scene in Muskego at the Brass Bay Brewhouse. Several resources are being dispatched. More on @WISN12News pic.twitter.com/vayyruDZjn
— Steven Radmer (@Steven_R) December 12, 2025
Fire officials have not yet determined the cause of the blaze. Crews remain at the scene assessing structural damage and monitoring hotspots. The investigation is ongoing.
A Historic Family Business Devastated
Bass Bay Brewhouse is a well-known family-owned Muskego restaurant, operated by the Oschmann family since the 1950s. According to the Milwaukee Journal Sentinel, Ryan Oschmann’s grandparents ran a supper club on the property until 1985, after which it was passed to his parents. The restaurant was reopened in its current form in 2015 by Ryan and his mother, Laurie.
The Muskego Police Department shared their “thoughts and prayers” for the Oschmann family, acknowledging the restaurant’s deep roots in the community.
Community Reacts With Shock and Support
News of the fire quickly spread across social media, where Muskego residents expressed heartbreak over the destruction of a local institution. Many commenters shared long-standing memories of dining at Bass Bay Brewhouse.
One resident wrote, “Grateful no one was injured but devastated for this iconic family business!! A absolute treasure of Muskego.”
Another added, “Such a huge loss for Muskego and the Oschmann Family. Stay safe firefighters & all responders.”
Firefighters Continue Response Efforts
Crews are expected to remain on-site for an extended period as they continue containing remaining hotspots and securing the structure. Further updates will be provided by Muskego authorities as more information becomes available.
