673 Castlehill DR Walnut CA 91789 MLS #AR26056234
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
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
Property Details
Price:
$1,690,000
MLS #:
AR26056234
Status:
Active
Beds:
4
Baths:
4
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
668walnut
Listed Date:
Mar 24, 2026
Finished Sq Ft:
2,579
Lot Size:
12,225 sqft / 0.28 acres (approx)
Year Built:
2026
See this Listing
Schools
School District:
Walnut Valley Unified
Interior
Bathrooms
2 Full Bathrooms, 1 Three Quarter Bathroom, 1 Half Bathroom
Cooling
CA
Laundry Features
IN
Levels
U
Main Level Bathrooms
2
Main Level Bedrooms
1
Exterior
Attached Garage YN
1
Common Walls
NCW
Community Features
SL
Garage Spaces
2
New Construction YN
1
Parking Spots
2
Parking Total
2
View
CI, MT
Financial
Map
Community
- Address673 Castlehill DR Walnut CA
- CityWalnut
- CountyLos Angeles
- Zip Code91789
Market Summary
Current real estate data for Single Family in Walnut as of Apr 12, 2026
105
Single Family Listed
58
Avg DOM
470
Avg $ / SqFt
$1,333,040
Avg List Price
Property Summary
- 673 Castlehill DR Walnut CA is a Single Family for sale in Walnut, CA, 91789. It is listed for $1,690,000 and features 4 beds, 4 baths, and has approximately 2,579 square feet of living space, and was originally constructed in 2026. The current price per square foot is $655. The average price per square foot for Single Family listings in Walnut is $470. The average listing price for Single Family in Walnut is $1,333,040. To schedule a showing of MLS#ar26056234 at 673 Castlehill DR in Walnut, CA, contact your The Knight Group LA agent at 503.200.4823.
Similar Listings Nearby
Courtesy of eXp Realty of California Inc. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the California Regional Multiple Listing Service. Detailed information about real estate listings held by brokerage firms other than The Knight Group LA include the name of the listing broker. Neither the listing company nor The Knight Group LA shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. California Regional Multiple Listing Service. All rights reserved. 673 Castlehill DR
Walnut, CA