20 Castle CT, Hillsborough, CA 94010
20 Castle CT, Hillsborough, CA 94010
20 Castle CT, Hillsborough, CA 94010
20 Castle CT, Hillsborough, CA 94010
20 Castle CT, Hillsborough, CA 94010
20 Castle CT, Hillsborough, CA 94010
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Sam Spinella

Sam Spinella

+1(408) 393-9294
Listed by Phil Chen • Christie's International Real Estate Sereno, DRE#01715177
$ 12,000,000
Est. payment | /mo

7 Beds

6.5 Baths

5,722 SqFt

Save
$ 12,000,000
Est. payment | /mo
Save

7 Beds

6.5 Baths

5,722 SqFt

Key Details

Property Type Single Family Home

Sub Type Single Family Home

Listing Status Active

Purchase Type For Sale

Square Footage 5,722 sqft

Price per Sqft $2,097

MLS Listing ID ML82059857

Style Contemporary,Modern / High Tech

Bedrooms 7

Full Baths 6

Half Baths 1

Year Built 2026

Lot Size 0.500 Acres

Property Sub-Type Single Family Home

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.

Location

State CA

County San Mateo

Area Carolands Etc.

Zoning R10025

Rooms

Family Room Separate Family Room

Other Rooms Laundry Room, Mud Room

Dining Room Formal Dining Room

Kitchen Countertop - Other, Dishwasher, Freezer, Garbage Disposal, Hood Over Range, Island, Pantry, Refrigerator, Wine Refrigerator

Interior

Heating Heat Pump

Cooling Central AC

Flooring Hardwood, Wood

Fireplaces Type Other

Laundry Inside, Tub / Sink

Exterior

Parking Features Attached Garage, Gate / Door Opener

Garage Spaces 3.0

Pool Pool - In Ground, Pool / Spa Combo

Utilities Available Natural Gas, Public Utilities, Solar Panels - Owned

View Hills, Neighborhood, Water

Roof Type Metal

Building

Story 2

Foundation Concrete Perimeter and Slab, Crawl Space

Sewer Sewer - Public

Water Public

Level or Stories 2

Others

Tax ID 030-061-080

Miscellaneous High Ceiling ,Vaulted Ceiling ,Walk-in Closet

Horse Property No

Special Listing Condition Not Applicable

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Sam Spinella
Sam Spinella

Your Trusted Real Estate Guy License ID: 01377658

+1(408) 393-9294 | sam@spinellagroup.com

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20 Castle CT