3932 Potomac Avenue, Dallas, Texas Highland Park Neighborhood Home Architect Larry SpeckHighland Park NeighborhoodMount Vernon NeighborhoodModern Style Architecture Architect Larry Speck designed this Highland Park modern home at the end of Potomac Avenue to take advantage of the views over the creek.Architect Larry Speck designed this Highland Park modern home at the end of Potomac Avenue to take advantage of the views over the creek.Spectacular Highland Park modern home built in 2016.