A Richard Neutra-designed modern in the Brentwood Glen neighborhood of Los Angeles is up for sale with a $4.395 million ask. The listing marks the first time the two-bed, two-bath home has been offered for sale since it was purchased by its first owner and transferred to its current spot, and transitioned from early modern prototype to private residence.

Neutra designed the house as a case study of sorts, but long before the Case Study Program; it was designed and built for a House & Garden exhibition in the mid-1930s. John Entenza, who edited Arts & Architecture Magazine and dreamed up the CSH series to give form to modern Los Angeles living, was related to the law partner of the first owner, according to the listing description. The implication is that Entenza developed the CSH program for his own magazine at least partially through knowledge of this house. And that’s probably right on the money.

The house features an imposing façade which reveals little. In back, of course, it blossoms into extravagant walls of glass panes. Interestingly, it breaks into a second floor over a section of the footprint, with massing that looks superstructure-like. The setting is idyllic in that optimistic early modern manner, with lush landscaping framing the purposeful human engineering in Edenic green. An ancient tree presides over the patio.

The home’s interiors have to be seen to be believed. Elegant, simple, and brimming with the hopeful potential of the future-tense, this prewar modern speaks volumes.