1586 Lexington AVE, San Mateo, CA 94402

$4,498,000
3
BD
2
BA
2,190
SqFt

Show Photos

Verify your account to unlock exclusive photos, mortgage tools, and more.

Listing courtesy of Boyenga Team from Compass. 408-373-1660

List Price
$4,498,000
Status
ACTIVE
MLS#
ML82060534
Subtype
res
Style
Contemporary, Eichler, Flat, Modern / High Tech
Year Built
1956
Bedrooms
3
Bathrooms
2
Full Baths
2
Living Area
2,190
Lot Size
8,803
Acres
0.20
Neighborhood
The Highlands / Ticonderoga
Building Name
The Highlands

Property Description

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. A legacy of visionary design.

Additional Information

Amenities
High Ceiling, Open Beam Ceiling, Security Gate, Skylight, Video / Audio System, Other
HOA Includes
BBQ Area, Club House, Community Pool, Game Court (Outdoor), Garden / Greenbelt / Trails, Gym / Exercise Facility, Organized Activities, Playground, Recreation Room, Tennis Court / Facility, Other
Property Description
Contemporary, Eichler, Flat, Modern / High Tech
Zoning
R10008
Roof
Foam
Foundation
Concrete Slab, Steel Frame
Pool
Yes
Pool Type
Pool - Fenced, Pool - In Ground, Pool - Sweep
View
Hills, View of Mountains, Neighborhood

Mortgage Calculator

Amount of Loan
Annual Interest Rate
%
Term of Loan
Years

Does not include any taxes or fees.
Please consult a financial professional.
Calculator source: Real Geeks

board logoBased on information from MLSListings MLS as of All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.


Copyright 2026 MLSListings Inc. All rights reserved