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20 Castle Ct

Hillsborough, CA 94010
  • $12,000,000
  • STATUS: Active
  • ON SITE: 5 Days
  • ID#: ML82059857
New On Site 5 Days Ago
UPDATED: 11 min ago
$12,000,000
  • 7
    BEDS
  • 0.5
    ACRES
  • 6
    BATHS
  • 1
    1/2 BATHS
  • 5,722
    SQFT
  • $2,097
    $/SQFT
Neighborhood:
Type:
Single-Family Home
Built:
2026
County:

School Ratings & Info

Listed by Phil Chen of Christie's International Real Estate Sereno: 415-271-1920.

Description

Offered as a rare presale opportunity with the ability to personalize select finishes, this modern architectural masterpiece is estimated for completion in Q3 2027. Privately situated on a level half-acre cul-de-sac lot, the residence offers approximately 5,722 square feet of refined living space, including an attached JADU and detached ADU . A dramatic double-height foyer with a full-height porcelain slab feature wall and statement chandelier creates a striking first impression. Soaring ceilings, premium engineered oak flooring, a dramatic floating staircase, and walls of glass create a striking sense of scale and effortless indoor-outdoor living. The showpiece kitchen features custom European-inspired cabinetry with warm natural wood finishes, natural quartzite surfaces, a waterfall island, and premium Thermador appliances. A private balcony, spa-inspired primary bath, custom wine display, Control4 automation, and beautifully landscaped grounds complete the residence. Buy early for preferred pricing and design personalization.

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© 2026 MLSListings Inc. Based on information from MLSListings MLS as of 2026-09-08T10:47:59.963. Data is updated hourly. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. DX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or eXp Realty of California, Inc.

Licensed in the State of California.
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20 Castle Ct Hillsborough, CA 94010

  • Price: $12,000,000
  • Status: Active
  • On Site: 5 Days
  • Updated: 11 min ago
  • ID#: ML82059857
7
Beds
6
Baths
1
½ Baths
0.5
Acres
5,722
SQFT
$2,097
$/SQFT
2026
Built
Neighborhood:
Carolands Etc.
County:
San Mateo
Area:
Carolands Etc.
Property Description
Offered as a rare presale opportunity with the ability to personalize select finishes, this modern architectural masterpiece is estimated for completion in Q3 2027. Privately situated on a level half-acre cul-de-sac lot, the residence offers approximately 5,722 square feet of refined living space, including an attached JADU and detached ADU . A dramatic double-height foyer with a full-height porcelain slab feature wall and statement chandelier creates a striking first impression. Soaring ceilings, premium engineered oak flooring, a dramatic floating staircase, and walls of glass create a striking sense of scale and effortless indoor-outdoor living. The showpiece kitchen features custom European-inspired cabinetry with warm natural wood finishes, natural quartzite surfaces, a waterfall island, and premium Thermador appliances. A private balcony, spa-inspired primary bath, custom wine display, Control4 automation, and beautifully landscaped grounds complete the residence. Buy early for preferred pricing and design personalization.
Exterior Features

Building Type Detached Construction Type ConcreteSteelWood Frame Foundation Concrete Perimeter and SlabCrawl Space Garage Max Spaces 3 Garage Min Spaces 3 Garage Parking Attached GarageGate / Door Opener Pool Pool - In GroundPool / Spa Combo Pool YN Yes Roof Metal Style ContemporaryModern / High Tech View HillsNeighborhoodWater

Interior Features

Additional Rooms Laundry RoomMud Room Bathroom Double SinksSkylight Bedrooms Walk-in Closet Cooling Central AC Dining Room Formal Dining Room Family Room Separate Family Room Fireplace Yn Yes Fireplaces Other Flooring HardwoodWood Heating Heat Pump Kitchen Features Countertop - OtherDishwasherFreezerGarbage DisposalHood Over RangeIslandPantryRefrigeratorWine Refrigerator Laundry InsideTub / Sink Second Unit Description ADU and JADU Structure Sq Ft 5722

Property Features

Additional Listing Info Not Applicable Amenities High CeilingVaulted CeilingWalk-in Closet City Limits Yes City Name Hillsborough Cross Street Remillard Energy Saving Features Solar Power Hoa YN No Horse Property YN No Incorporated No Lot Size Area Maximum 21787.00 Property Sub Type Single Family Home Sewer Septic Sewer - Public Sq Ft Source Other Utilities Natural GasPublic UtilitiesSolar Panels - Owned Water Public Zoning R10025

Listed by Phil Chen of Christie's International Real Estate Sereno: 415-271-1920.



© 2026 MLSListings Inc. Based on information from MLSListings MLS as of 2026-09-08T10:47:59.963. Data is updated hourly. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. DX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or eXp Realty of California, Inc.

Licensed in the State of California.
Website powered by BoomTown.
 
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eXp Realty of California, Inc
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Listed by Phil Chen of Christie's International Real Estate Sereno: 415-271-1920.