This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/15
$4,498,000 Just Listed
This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/15
Property Description
A rare architectural offering this one-of-a-kind 1956 X-100 prototype 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. Shaped CA Modernism. Listed on the National Register of Historic Places, this is a true collector-grade property ideal for design enthusiasts, historians, and those seeking a singular living experience.
Full Property Details
Full Property Details for 1586 Lexington Ave
General
- Price: $4,498,000
- Status: Active
- Type: Single Family
- Source: RE_Infolink
- MLS ID: ML82039557
- Updated: 5/1/2026
- Added to Site: 2 day(s) ago
Interior
- Rooms/Areas: Den / Study / Office, Great Room, Laundry Room, Office Area, Storage, Other
- Interior Features: High Ceiling , Open Beam Ceiling, Security Gate, Skylight, Video / Audio System, Other
- Fireplace(s): Freestanding, Living Room, Wood-Burning
- Flooring: Tile, Vinyl / Linoleum
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 2
- Bathroom Features: Double Sinks, Oversized Tub, Pass Through, 1 Shower over Tub, Skylight , Split Bath, Tile, Other
Bedrooms
- Total Bedrooms: 3
Other Rooms
- Family Room: Kitchen / Family Room Combo
- Kitchen: 220 Volt Outlet, Formica Countertop, Dishwasher, Exhaust Fan, Garbage Disposal, Icemaker Hookups, Icemaker, Island, Built-In Oven, Double Oven, Electric Oven
- Laundry: Dryer, Electricity Hookup (110V), Electricity Hookup (220V), Gas Hookup, In Utility Room, Inside, Tub/Sink, Washer, Washer / Dryer
Additional Information
- Pool: Yes
- Pool Description: Pool - In Ground, Pool - Sweep
- Extras: Not Applicable
- Security/Safety: Security Fence, Video / Audio System
Parking
- Parking Features: Carport , Guest/Visitor Parking, Lighted Parking Area, No Garage, Off-Street Parking, On Street, Parking Area
Location
- Area: The Highlands / Ticonderoga
- County: San Mateo
- Complex: The Highlands
- Cross Streets: Bunker Hill
Heating & Cooling
- Cooling Type: None
- Heating Type: Gas, Radiant
Utilities
- Sewer: Public Sewer
- Water: Public
- Telecomm.: Cable TV
- Utility Description: Public Utilities
Structural Information
- Architectural Style: Contemporary, Eichler, Flat, Modern / High Tech
- Construction: Detached, Steel Frame
- Foundation: Concrete Slab, Steel Frame
- Roof: Foam
- Disability Access: Bathroom Features, Wide Halls / Doors (3 Ft +)
- Square Feet: 2,190
- Year Built: 1956
Lot Features
- Property View: Hills, Mountains, Neighborhood
- Lot Size (Acres): 0.2021
- Minimum Lot Size: 8803
- Lot Size (Sq. Ft.): 8,803
- Grounds/Landscape: Back Yard, Balcony / Patio, BBQ Area, Courtyard, Drought-Tolerant Plants, Fenced, Low Maintenance, Sprinklers - Auto, Storage Shed / Structure
- Zoning: R10008
- Lot Description: Mostly Level
- Fencing (Description): Fenced, Fenced Back, Gate, Mixed Height / Type, Wood, Other
Green Features
- Energy Efficient: Green Features, Skylight, Thermostat Controller
Disclosures and Reports
- Restrictions: None
Listed by Compass, Boyenga Team
Get Pre-Approved Today
Schools
Schools serving 1586 Lexington Ave
School Districts:San Mateo-Foster City Elementary School District, San Mateo Union High School District
| Name | Grades | Distance |
|---|---|---|
Highlands Elementary School, San Mateo, CA 2320 Newport Street, San Mateo, CA 94402 | K-5 | 0.2 mi |
Borel Middle School 425 Barneson Avenue, San Mateo, CA 94402 | 6-8 | 2.4 mi |
Aragon High School 900 Alameda de las Pulgas, San Mateo, CA 94402 | 9-12 | 2.1 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 1586 Lexington Ave
Date
Details
Price
Change
Source
4/29/2026
Listed
$4,498,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 1586 Lexington Ave
Year
Property Taxes
Change
Tax Assessment
Change
2025
$15,764
2%
$1,186,944
2%
2024
$15,525
2%
$1,163,672
2%
2023
$15,209
2%
$1,140,856
2%
2022
$14,937
2%
$1,118,488
2%
2021
$14,664
3%
$1,096,560
1%
2020
$14,171
3%
$1,085,318
2%
2019
$13,785
4%
$1,064,040
2%
2018
$13,206
1%
$1,043,180
2%
2017
$13,011
—
$1,022,726
2%
2016
$12,978
2%
$1,002,676
2%
2015
$12,710
9%
$987,616
10%
2014
$11,672
1%
$900,246
1%
2013
$11,564
—
$894,796
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 1586 Lexington Ave
1586 Lexington Ave, San Mateo, CA 94402 (MLS# ML82039557) is a Single Family property with 3 bedrooms and 2 full bathrooms. 1586 Lexington Ave is currently listed for $4,498,000 and was received on April 29, 2026. Want to learn more about 1586 Lexington Ave? Do you have questions about finding other Single Family real estate for sale in San Mateo? You can browse all San Mateo real estate or contact a Coldwell Banker agent to request more information.

