3612 Euclid Avenue, Dallas, Texas Highland Park Neighborhood Home Architect Frank WelchHighland Park NeighborhoodFirst Section of Old Highland Park NeighborhoodModern Style Architecture Architect Frank Welch designed this home in Highland Park in 1965 as he began his 50-year career of designing homes in Dallas. Architect Frank Welch designed this home in Highland Park in 1965 as he began his 50-year career of designing homes in Dallas. Architect Frank Welch, FAIA, designed this Highland Park modern house early in his Dallas career in 1965.