No longer listed
We last saw this home in the MLS feed on Jul 27. It may have sold, or the seller may have taken it off the market — the feed doesn't say which.
$4,498,000
1586 Lexington Avenue, San Mateo, CA 94402
260% above the San Mateo median of $1.2M (80 active listings)
44% of San Mateo listings have cut their price · half have been listed 49+ days
About this home
A rare architectural offering, this one-of-a-kind 1956 Mid-Century Modern X-100 prototype, designed by an acclaimed team of architects, represents a pivotal moment in mid-century modern design. The home showcases six exposed steel I-beams, eliminating interior load-bearing walls and creating a dramatic open, light-filled environment with seamless indoor-outdoor flow. Thoughtfully restored while honoring its original vision, recent updates include fresh interior/exterior paint, recoated foam roof, refinished vinyl and concrete floors, updated radiant heating, curated furnishings, and refreshed landscaping. The home is organized around two private garden atriums with in-ground planting beds, while 32 feet of skylights flood the interiors with natural light. Signature materials, steel, glass, and Formica, highlight the home's authentic modernist character. Built-ins and kitchen elements are fully integrated into the architecture. Debuted in 1956, the X-100 gained national attention and influenced generations of modern residential design, set against the backdrop of Crystal Springs Reservoir. Listed on the National Register, this is a true collector-grade property ideal for design enthusiasts, historians, and those seeking a singular living experience.
Property details
- Property type
- Single Family
- Year built
- 1956
- Listed
- 92 days ago
- MLS #
- 82039557
- Listed by
- Boyenga Team · Compass
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Location
Approximate location based on the listing address.