PFEIFER RIDGE IS SOLD OUT. Pfeifer Ridge is a new home community in Happy Valley with homes starting in the high $200’s. These beautifully built homes have the craftsmanship and quality homebuyers have come to count on from TA Liesy Homes NW. Pfeifer Ridge offers 16 homesites of varying sizes and is directly adjacent to Pfeifer Park. The park features two natural grass fields, and a multi-purpose field. In addition to the sports fields, this neighborhood park features a play structure, picnic shelter, walking trail, and more.