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Listed by: Phil Chen (415) 271-1920 DRE #01715177, Axis Elite Team DRE #70010248 | Christie's International Real Estate Sereno (650) 844-7373
$12,000,000
Monthly Est:$59,728
7 Beds
- 7 Baths
6 full baths + 1 half bath
5,722sqft
20 Castle Ct, Hillsborough, CA 94010
$12,000,000
$59,728/moEst:
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Single Family Residence
Built in 2026
$-- HOA
21,787 sqft lot
$2,097/sq.ft
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 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.
- Houzeo last checked: 7 minutes ago
- Listing updated: November 4, 2026 at 1:05 am
- Source: California Regional MLS-CA | MLS#: ML82059857

Property Details
Status
Pending
Type
Single Family Residence
No. of Stories
2
County
City
Neighborhood
--
Year Built
2026
HOA Fees
-
Finished Area
5,722 sqft
Lot Size
21,787 sqft lot
Basement Area
- sqft
MLS Name
California Regional MLS
MLS Number
ML82059857
MLS Status
Pending
Days on Market
64

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 7
Bathrooms: 7
Interior
Cooling
Central Air
Appliances
Dishwasher, Freezer, Disposal, Refrigerator, Range Hood
Heating
Heat Pump
Interior Features
Walk In Closets
Sewer
Public Sewer
Flooring
Wood
Construction
Year Built
Year Built: 2026
Home type
Single Family Residence
Architectural Style
Contemporary, Modern
Construction Materials
Concrete, Steel
Roof
Metal
Utilities & Energy
Utilities
Natural Gas Available
Pool Features
In Ground
Water Source
Public
Parking Features
Gated
Price History
| Date | Event | Price |
|---|---|---|
11/02/2026 Source: | Pending | $12,000,000 $4,762/sqft |
10/13/2026 Source: | Contingent (Active Under Contract) | $12,000,000 $4,762/sqft |
09/02/2026 Source: | Listed for Sale | $12,000,000 +141076.47% $4,762/sqft |
08/04/2022 Source: | Price Increased | $8,500 +13.33% $3/sqft |
07/25/2022 Source: | Price Decreased | $7,500 -99.82% $3/sqft |
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Based on information from California Regional Multiple Listing Service, Inc. as of Nov 06, 2026, 05:15PM and /or other sources. 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. Information being provided 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. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.
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