Those eager for the German lager house going into the historic building in St. Paul’s West Seventh neighborhood can get a sneak peek this weekend when the Waldmann Brewery opens for the Minneapolis/St. Paul Home Tour.

Waldmann, which announced its name change earlier this month, from Stone Saloon, is expected to open in September.

After extensive research on the historic house at 445 Smith Ave., owner Tom Schroeder decided to change the name. The name Waldmann comes from original owner Anthony Waldmann, a Bavarian immigrant who was the first owner when the saloon rolled out the barrels in the fall of 1857.

The craft brewery is expected also to be an ode to the building’s heritage. Look for a menu of craft brews and house-made sausages. In addition to a taproom and restaurant, an addition will be home to a “brew barn” and kitchen, according to the saloon’s website.

The spot is the city’s only surviving pre-Civil War saloon, and restoration has been underway for years. As Schroeder put it in a news release earlier this month, this will be the city’s “newest, oldest brewery.”

“I want to give folks a chance to discover the meaning in history, experiencing what it’s like to have a conversation by lamplight over good food and classic beer while sitting in 160-year old rooms that were built from the stone under their feet.”

A crowdfunding campaign is underway in hopes of raising $45,000 for costs associated with the project. A crowdfunding launch party is set for 7:30 to 9:30 p.m. April 20 at Waldmann. Other pre-opening events are planned; visit waldmannbrewery.com for details.

Go to the Minneapolis/St. Paul Home Tour website for details on the brewery and other tour stops.