On the market for the first time in 66 years is a home believed to be the most significant surviving residence by early modernist architect Irving Gill in Southern California.

Listed on the National Register of Historic Places, the South Pasadena property was designed in 1911 for Mrs. Paul Miltimore, a prosperous olive rancher.

Despite being over a century old, the home has had only three owners and looks much the same as it did when first built. Measuring 3,751 square feet, it has five bedrooms, three baths, hardwood floors, lathe and plaster walls, French doors, casement windows, two fireplaces, and sinks and tubs encased in magnesite.

But according to a 1914 House Beautiful story on the Miltimore Residence, the house’s “most original feature is the play of color upon its white surface,” which “becomes iridescent when the sun moves across it. The texture that makes this charm is Mr. Gill’s discovery and secret.”

Located on a gated street, the .63-acre landmark is listed with an asking price of $4 million.

1301 Chelten Way [Crosby Doe Associates]