For sale Home

Listed Sep 17, 2026

$4,498,000 Est. $29,750/mo

1586 Lexington Avenue

  • 3

    Beds

  • 2

    Baths

  • 2,190

    Sq ft

The story

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.

Facts & features

Home type

Home

Year built

1956

Floors

1

Price per sq ft

$2,054

Included features

  • Fireplace

    1 fireplace

  • Heating

    Natural Gas, Radiant

  • Appliances

    Dishwasher, Double Oven, Plumbed For Ice Maker, Oven

  • Flooring

    Tile

  • Exterior

    Back Yard

  • Water Source

    Public

  • Sewer

    Public Sewer

  • View

    Mountain

Mortgage calculator

Estimated monthly payment

$29,750 /mo

7% rate · 30-yr fixed · 20% down

  • Principal & interest $23,940
  • Property tax $4,498
  • Insurance $1,312

Includes principal, interest, taxes & insurance.

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Listing Broker

Compass

Broker Name

Compass

Agent

Boyenga Team

Location

CA 95032