This model shows a LiDAR-scan of selected room interiors of a historic building located in Lower Austria (AUT) recorded during building-archaeological measures by the archaeological company ARDIG, triggered by recent remodeling work in the course of house renovation. Scanning was done in two rounds using 3dScannerApp on an iPhone 13 Pro. Each round took approx. < 5 min of capturing and another < 5 min of on-board processing time. After the first room was fully captured in 3D and with textures in the first round, the scan was (nearly) seamlessly extended by another room in a second round using the corresponding app function. Therefore, within less than approx. 20 minutes, both rooms could be fully documented in 3D by a scaled and textured 3D model. Considering the extreme flexibility and fast acquisition and processing time, the method holds tremendous future potential for archaeological work, even if still several minor errors occur in the final product.