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Berkshire Hathaway HomeServices California Properties Berkshire Hathaway HomeServices California Properties
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673 Castlehill Walnut, CA 91789
$1,388,000 4 beds, 4 baths
2, 579 sqft
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Berkshire Hathaway HomeServices California Properties 11828 Rancho Bernardo Rd, Ste 210
San Diego, CA 92128
888-995-7575
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Agent Remarks

BRAND-NEW CUSTOM LUXURY HOME WITH BREATHTAKING CITY-LIGHT VIEWS IN WALNUT! This exceptional 4-bedroom, 3.5-bath residence sits on an expansive 12,000+ sq. ft. lot and offers approximately 2,579 sq. ft. of beautifully designed living space with premium, high-quality upgrades throughout. Soaring ceilings, sophisticated finishes, an open-concept floor plan, and panoramic city-light and rolling-hill views create an exceptional blend of luxury, comfort, and modern living. The impressive gourmet kitchen is the centerpiece of the home, featuring an upgraded backsplash, elegant glass-front cabinetry, quartz countertops, a large center island, and soft-closing drawers. It flows seamlessly into the dining and spacious family room, creating an ideal space for entertaining and everyday gatherings. A fireplace adds warmth to the family room, while luxury vinyl plank flooring and high ceilings enhance the home's contemporary style. The main level features a private ensuite bedroom, ideal for guests, extended family, or multigenerational living, plus a separate powder room. Upstairs, the luxurious primary suite offers a spa-inspired retreat with a freestanding soaking tub, walk-in shower, and oversized walk-in closet. Two additional bedrooms share a convenient Jack-and-Jill bathroom. The oversized garage features epoxy flooring, abundant storage, and direct access to the home. The expansive backyard offers beautiful city-light and hillside views, along with potential for an ADU or additional outdoor living space, subject to applicable city requirements. An additional street at the rear of the property provides added access and flexibility. NO HOA. NO MELLO-ROOS. Located in the highly regarded Walnut Valley Unified School District, this home is conveniently close to shopping, dining, entertainment, major freeways, and everyday conveniences. A rare opportunity to own a brand-new custom luxury home on a premium oversized lot with exceptional views, high-quality upgrades, and no HOA or Mello-Roos in the heart of Walnut.

Listing Details

Property type: Single Family Residence (Single Family)
Status: Active
MLS# IG26218237
List price is $1,388,000
HOA Fee is $0.00
Beds: 4
Baths: 4 (3 full) (1 half)
Family Room fireplaces
Built in 2026
2,579 sqft
2 stories
0.28 acres
Lot size: 0.2806
County: Los Angeles
Lot description: ZeroToOneUnitAcre
Heating/cooling: Central Air
MLS area: 668 - Walnut

Last Updated: 10/9/2026

 Find more Walnut homes and real estate

 Find more homes in 91789 zip code

This listing belongs to the 668 - Walnut MLS area

Lat/Long: 34.007216, -117.865958.
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Listing Agent: Julie Lee
Lic#: 01892085
Broker: Courtesy of JL Realty & Management

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Area Overview

Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.

Community Characteristics:

Occupancy Type

White/Blue Collar Jobs

Population by Gender

Hispanic/Non-Hispanic Population

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Berkshire Hathaway HomeServices California Properties 11828 Rancho Bernardo Rd, Ste 210
San Diego, CA 92128
888-995-7575
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