$4,498,000

1586 Lexington Avenue, San Mateo, CA 94402

  • 3 beds |
  • 2 baths |
  • 2,190 sqft
  • Property Icon Single-Family Home
  • Property Year Built Icon Built in 1956
  • Property Lot Size Icon8,803sqft lot
  • Property Parking Icon —— car garage
  • Property Price Per Square Feet Icon $2,054/sqft
  • Property List Date Icon Listed 21 days ago

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.

Listing Status:
Active
Date Added:
April 29, 2026
Data Last Updated:
May 21, 2026 at 12:08AM
Listing Office:
Compass :
Listing Agent:
Boyenga Team : 408-373-1660
MLS ID:
ML82039557
  • General: Dining AreaStorageBreakfast BarSmart Thermostat
  • Appliances: DishwasherDouble OvenPlumbed For Ice MakerOven
  • Laundry: DryerWasher
  • Flooring: Tile
  • A/C: None
  • Heating: Natural GasRadiant
  • Fireplace: Free StandingLiving RoomWood BurningFireplaceFireplaces: 1
  • General: Back Yard
  • Style: Contemporary
  • Parking: Off StreetGuestParking Lot
  • General: 1Slab
  • HOA Amenities: ClubhousePlayground
  • School District: San Mateo Union High
  • County: San Mateo
  • Zoning: R100041044030
  • View: HillsMountain(s)View
  • Fencing: Fenced
  • Utilities: 220 Volts in KitchenElectricity on Property
  • Water: Public
  • Sewer: Public Sewer

This listing courtesy of Boyenga Team , Compass

Monthly Payment

$Est. Payment
  • Principal & Interest $
  • Property Taxes $
  • Home Insurance $
  • VA Funding Fee $

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