20 Castle CT

20 Castle Court, Hillsborough, CA, 94010
$12,000,000

Basics

Description

  • 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 Miele 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.

Location

  • County: San Mateo

Building Details

Amenities & Features

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Based on information from the MLSListings MLS as of September 15, 2026. 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.

This information is 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.

Listing data © 2026 MLSListings Inc. All rights reserved.

Date added Added 10 hours ago Category Type Status
Bedrooms 7 beds Bathrooms 6 baths Half baths 1 half bath Area 5722 sq ft
Lot size 21787 sq ft Year built 2026 View Hills, Water Garage spaces 3
Listing source MLSL MLS ID ML82059857