It was added onto the National Register of Historic Places[1] on August 1, 2007.

The series included nine houses built between 1938 and 1940 in Lake Oswego and Portland.

The houses used a modular design concept that pioneered the use of external plywood as a building material and separate ventilation louvers, which allowed for series of fixed pane glass to be inset between vertical mullions.

Yeon is frequently cited as one of the originators of what became known as the Northwest Regional style of architecture.

This article about a property in Oregon on the National Register of Historic Places is a stub.