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About This Home
This 4-bedroom, 4-bathroom single family at 673 Castlehill Drive in Walnut, CA is listed for $1,599,000 ($620 per sqft). Built in 2026, the home offers 2,579 sqft of living space on a 0.28 acres lot.
Brand new custom-built luxury home in the heart of Walnut featuring soaring ceilings, sweeping city light and hill views, and an exceptional floor plan designed for modern living. This 4-bedroom, 3.5-bath residence offers 2,579 sqft of meticulously crafted living space with premium finishes throughout.
At the heart of the home, a grand open-concept living area seamlessly connects the gourmet kitchen, dining, and living spaces — an entertainer's dream designed to accommodate large gatherings with ease. The expansive kitchen anchors the space with generous counter space and an effortless flow that makes hosting feel natural.
The main floor features a private ensuite bedroom — perfect for guests or multi-generational living. Upstairs, the grand primary suite is a true retreat with a spa-inspired bath complete with a freestanding soaking tub, walk-in shower, and an oversized walk-in closet. Two additional upstairs bedrooms share a well-appointed Jack and Jill bathroom — ideal for family living.
Enjoy panoramic views of the city lights and rolling hills from the comfort of your own home. No HOA. No Mello Roos. Award-winning Walnut Valley Unified School District and within close proximity to shopping, entertainment and easy access to major freeways
Key Features
- Built in 2026
- 0.28 acre lot
- 2 stories
- 2 parking spaces
Property Details
Amenities
Monthly Cost Estimate
$8,552/mo
20% down · 6.5% · 30 years
Estimates only. Actual payments may vary.
Location
673 Castlehill Drive
Walnut, CA 91789
Features & Amenities
Exterior Features
Property Details
Views
Cooling
Questions & Answers
This 4-bedroom, 4-bathroom single family at 673 Castlehill Drive is listed at $1,599,000 ($620/sqft). The estimated monthly payment is $6,929 based on 20% down at 6.5% interest.
Key features include: Built in 2026, 0.28 acre lot, 2 stories, 2 parking spaces. Exterior Features: Community Features Included: Street Lights, Back Yard.
This property is listed by Karen Kuit and can be reached at 6265248210 or karen@kuithomes.com.








