REQUEST A TOUR If you would like to see this home without being there in person, select the "Virtual Tour" option and your agent will contact you to discuss available opportunities.

In-PersonVirtual Tour

Eric Boyenga

e@boyenga.com +1(408) 506-3942

Listed by Boyenga Team, DRE #70010882 • Compass

$ 4,498,000

Est. payment | -/mo

3 Beds

2 Baths

2,190 SqFt

Save Virtual Tour

$ 4,498,000

Est. payment | -/mo

Save Virtual Tour

3 Beds

2 Baths

2,190 SqFt

Key Details

Property Type Single Family Home

Sub Type Single Family Home

Listing Status Active

Purchase Type For Sale

Square Footage 2,190 sqft

Price per Sqft $2,053

MLS Listing ID ML82039557

Style Contemporary,Eichler,Flat,Modern / High Tech

Bedrooms 3

Full Baths 2

Year Built 1956

Lot Size 8,803 Sqft

Property Sub-Type Single Family Home

Source MLSListings, Inc.

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.

Location

State CA

County San Mateo

Area The Highlands / Ticonderoga

Zoning R10008

Rooms

Family Room Kitchen / Family Room Combo

Dining Room Breakfast Bar, Dining Area, Dining Area in Family Room, Dining Bar, Eat in Kitchen, No Formal Dining Room, Skylight

Kitchen 220 Volt Outlet, Countertop - Formica, Dishwasher, Exhaust Fan, Garbage Disposal, Hookups - Ice Maker, Ice Maker, Island, Oven - Built-In, Oven - Double, Oven - Electric

Interior

Heating Gas, Radiant

Cooling None

Flooring Tile, Vinyl / Linoleum

Fireplaces Type Free Standing, Living Room, Wood Burning

Laundry Dryer, Electricity Hookup (110V), Electricity Hookup (220V), Gas Hookup, In Utility Room, Inside, Tub / Sink, Washer, Washer / Dryer

Exterior

Parking Features Carport , Guest / Visitor Parking, Lighted Parking Area, No Garage, Off-Street Parking, On Street, Parking Area

Garage Spaces 2.0

Fence Fenced, Fenced Back, Gate, Mixed Height / Type, Wood, Other

Pool Pool - In Ground, Pool - Sweep

Utilities Available Public Utilities

View Hills, Mountains, Neighborhood

Roof Type Foam

Building

Lot Description Grade - Mostly Level

Foundation Concrete Slab, Steel Frame

Sewer Sewer - Public

Water Public

Architectural Style Contemporary, Eichler, Flat, Modern / High Tech

Others

Tax ID 041-044-030

Special Listing Condition Not Applicable

Virtual Tour https://www.eichlerx-100.com

NEARBY SCHOOL & BUSINESS

+1(408) 506-3942

e@boyenga.com

167 S. San Antonio Road, Altos, CA

1586 Lexington AVE San Mateo, CA 94402