Leinweber Building. Built in 1907 for Ernest Roland Leinweber (1869-1922), a prominent Hondo businessman, this three-story commercial building was constructed by prolific South Texas contractor Gus Birkner, who also participated in the construction of the Texas State Capitol. Built with locally produced brick, the structure features some influences of. Classical and Romanesque styles of architecture. The Hondo landmark has housed a variety of professional and commercial offices. Recorded Texas Historic Landmark, 1986 #3068