AGNSY
20 Castle Court
Hillsborough · 94010

20 Castle Court

2026 · 7 BD · 6.5 BA · 5,722 SQFT
In Contract
$12.00M
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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 ADU & pool. 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.

Bedrooms
7
Bathrooms
6.5
Interior
5,722sqft
Year built
2026
Lot size
21,787sqft
$ / Sqft
$2,097
Days on market
69d
Disclosure package
Not sourced yet.
Comp position · Sale price
Street View
Commute · Tue 8:30am
San Francisco
33m
Palo Alto
11m
Mountain View
14m
Similar homes
Offer this amount
$12.00M
What you keep at closing
$255,000
Buyer-side commission$300,000
Agnsy retains · 15%$45,000
Returned to you · 85%$255,000