Property Attributes
- MLS#ML82060534
- TypeSingle Family
- Listing Status Active
- CountySAN MATEO
- CitySan Mateo
- AreaThe Highlands - Ticonderoga
- Zip94402
- StyleContemporary,Eichler,Flat,Modern / High Tech
- Year Built1956
- Price$ 4,498,000
- Bedrooms3
- Full Bathrooms2
- Half Bathrooms0
- Sqr Footage2190
- Lot Size0.2021 Acres
Data 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. A legacy of visionary design.
| Price History | |
|---|---|
| 9/17/2026 | Listed $4,498,000 |
General Features
| Heating | Gas,Radiant |
|---|---|
| Cooling | None |
| Utilities | Public Utilities |
| Roof | Foam |
| Water | Public |
| Fireplaces | Free Standing,Living Room,Wood Burning |
| Architectural Style | Contemporary,Eichler,Flat,Modern / High Tech |
| Pool Features | Pool - Fenced,Pool - In Ground,Pool - Sweep |
| Restrictions | None |
| Construction Materials | Steel Frame |
| Energy Features | Double Pane Windows,Green Features,Skylight,Thermostat Controller,Other |
| Additional Rooms | Den / Study / Office,Great Room,Laundry Room,Office Area,Storage,Other |
| Year Built | 1956 |
| View | Hills,Mountains,Neighborhood |
| Age | 70 |
| Property Subtype | Single Family Home |
| Complex Name Text | The Highlands |
| Zoning Text | R10008 |
| Amenities Misc. | High Ceiling,Open Beam Ceiling,Security Gate,Skylight,Video / Audio System,Other |
| Building Type | Detached |
| Accessibility | Bathroom Features,Wide Halls / Doors (3 Ft +),Other |
| County | San Mateo |
| Property Type | Residential |
| Association Amenities | BBQ Area,Club House,Community Pool,Game Court (Outdoor),Garden / Greenbelt / Trails,Gym / Exercise Facility,Organized Activities,Playground,Recreation Room,Tennis Court / Facility,Other |
| Full Baths | 2 |
| Special Listing Conditions | Not Applicable |
| Status | Active |
| City | SAN MATEO |
| MLS Area | The Highlands / Ticonderoga |
| Lot Size Units | Square Feet |
| Listing Agent State License | 70010882 |
| Co-Listing Agent State License # | 01466876 |
| Co-Listing Agent Last Name | Graeham |
| Co-Listing Agent Last Name | Watts |
| Virtual Tour | https://www.eichlerx-100.com |
| Virtual Tour | https://www.eichlerx-100.com |
Interior Features
| Kitchen | 220 Volt Outlet,Countertop - Formica,Dishwasher,Exhaust Fan,Garbage Disposal,Hookups - Ice Maker,Ice Maker,Island,Oven - Built-In,Oven - Double,Oven - Electric |
|---|---|
| Flooring | Tile,Vinyl / Linoleum |
| 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 |
| Bathroom | Double Sinks,Oversized Tub,Pass Through,Shower over Tub - 1,Skylight,Split Bath,Tile,Other |
| Living SqFt | 2190 |
| Fireplace Y/N | Yes |
| Laundry Features | Dryer,Electricity Hookup (110V),Electricity Hookup (220V),Gas Hookup,In Utility Room,Inside,Tub / Sink,Washer,Washer / Dryer |
| Total Bedrooms | 3 |
Exterior Features
| Lot Description | Grade - Mostly Level |
|---|---|
| Fencing | Fenced,Fenced Back,Gate,Mixed Height / Type,Wood,Other |
| Parking Features | Carport,Guest / Visitor Parking,Lighted Parking Area,No Garage,Off-Street Parking,On Street,Parking Area |
| Horse Property | No |
| Parking Spaces | 2 |
| Model Name | Eichler X-100 |
| Lot Size Area | 8803.00 |
| Maximum Lot Size | 8803.00 |
| Yard/Grounds | Back Yard,Balcony / Patio,BBQ Area,Courtyard,Drought Tolerant Plants,Fenced,Low Maintenance,Sprinklers - Auto,Storage Shed / Structure |
| Sewer/Septic | Sewer - Public |
| Pool (Y/N) | Yes |
| Foundation Details | Concrete Slab,Steel Frame |
| Building Area Total | 2190 |
| Lot Acres | 0.2021 |
Amenities
- Foreclosure
- Views
- Short Sale
- New Construction
- Adult 55+
- Lease To Own
- No HOA Fees
- Furnished
- Primary On Main
- Air Conditioning
- Seller Finance
- Green
- Fixer Upper
- Horse
- Golf
- Fireplace
- Deck
- Garage
- Basement
- Pool
Based on information from California Regional Multiple Listing Service, Inc. as of September 27, 2026 4:20 AM UTC This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.
This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g.square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with
Last updated: September 27, 2026 3:39 AM UTC Property Information © 2026
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