By Amy Burger Special to the Post-Dispatch The Lafayette Square home of Dave and Marlon Taubenheim is a bit of an anomaly in the neighborhood. For starters, it was built in 2017, though you would never know it from its façade, which convincingly echoes the Victorian era homes the area is best known for. It also has a spacious outdoor living area with a pool and hot tub, one of just a few in the neighborhood. The backyard oasis will be on display to the public as part of the Square in Bloom Garden Tour on June 4. The Taubenheims are proud St. Louis transplants and couldn’t be happier with…