20 Castle CT
Hillsborough, CA, 94010
$12,000,000
7 Beds
7 Baths
5,722 SqFt
0.5 Acres
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MLS #ML82059857 image #0
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.

Property Details

Price:
$12,000,000
MLS #:
ML82059857
Status:
Active
Beds:
7
Baths:
7
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
699notdefined
Listed Date:
Sep 3, 2026
Finished Sq Ft:
5,722
Lot Size:
21,787 sqft / 0.50 acres (approx)
Year Built:
2026
Contemporary, ModernNewconstruction699 – Not Defined699notdefinedOtherOtherOtherBurlingameNeighborhood

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Schools

School District:
Other
Elementary School:
Other
Middle School:
Other
High School:
Burlingame

Interior

Appliances
DW, FZ, GD, RF, HOD
Bathrooms
6 Full Bathrooms, 1 Half Bathroom
Cooling
CA
Flooring
WOOD
Heating
HP

Exterior

Architectural Style
CNT, MOD
Attached Garage YN
1
Common Walls
NCW
Construction Materials
STL, CON
Garage Spaces
3
Parking Spots
3
Parking Total
3
Roof
MTL
Spa Features
IG
View
HI, WA, NE

Financial

Map

Community

Market Summary

Current real estate data for Single Family in Hillsborough as of Sep 06, 2026
20
Single Family Listed
134
Avg DOM
1,621
Avg $ / SqFt
$11,422,500
Avg List Price

Property Summary

    20 Castle CT Hillsborough CA is a Single Family for sale in Hillsborough, CA, 94010. It is listed for $12,000,000 and features 7 beds, 7 baths, and has approximately 5,722 square feet of living space, and was originally constructed in 2026. The current price per square foot is $2,097. The average price per square foot for Single Family listings in Hillsborough is $1,621. The average listing price for Single Family in Hillsborough is $11,422,500.

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