# 673 Castlehill Drive, Walnut, CA 91789

> **TL;DR:** 4bd/4ba single family, $1,599,000 ($620/sqft), built 2026, 2,579 sqft.
> View. Est. $6,929/mo. Listed 69 days.

## Property at a Glance

| Attribute | Value |
|-----------|-------|
| Price | $1,599,000 |
| Price/sqft | $620 |
| Bedrooms | 4 |
| Bathrooms | 2 full, 1 half |
| Square Feet | 2,579 |
| Year Built | 2026 |
| Lot Size | 12,225 sqft (0.28 acres) |
| Stories | 2 |
| Property Type | Single Family (Single Family Residence) |
| Status | For Sale |
| Days on Market | 69 |

## Why This Home Stands Out

- **Views** - City, Mountain

## Estimated Monthly Costs

| Category | Amount |
|----------|--------|
| Mortgage (20% down, 6.5%) | $6,929 |
| **Total** | **$6,929** |

## Key Amenities

- View

## Property Highlights

- Built in 2026
- 0.28 acre lot
- 2 stories
- 2 parking spaces

## Description

### Agent Description
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

## Location

- **Address:** 673 Castlehill Drive, Walnut, CA 91789
- **County:** Los Angeles

## Listing Agent

- **Name:** Karen Kuit
- **Brokerage:** eXp Realty of California Inc
- **Phone:** 6265248210
- **Email:** karen@kuithomes.com

## Primary Photo

![673 Castlehill Drive - Primary Photo](http://lh.rdcpix.com/f9c44bde8760c84bd7bd03219d9b6676l-f2237271091r.jpg)

*49 total photos available on [listing page](https://www.propertysimple.com/listing/673-castlehill-drive-walnut-ca-91789-26056234)*

---

**MLS#:** AR26056234 | **Updated:** 2026-06-17
**Source:** listhub

*Copyright © 2026 California Regional Multiple Listing Service, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.*

[View on PropertySimple](https://www.propertysimple.com/listing/673-castlehill-drive-walnut-ca-91789-26056234)

---

## Structured Data

```json
{
  "@context": "https://schema.org",
  "@type": "RealEstateListing",
  "name": "673 Castlehill Drive, Walnut, CA 91789",
  "description": "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. \r\nAt 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 wi",
  "url": "https://www.propertysimple.com/listing/673-castlehill-drive-walnut-ca-91789-26056234",
  "image": "http://lh.rdcpix.com/f9c44bde8760c84bd7bd03219d9b6676l-f2237271091r.jpg",
  "datePosted": "2026-06-17",
  "price": 1599000,
  "priceCurrency": "USD",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "673 Castlehill Drive",
    "addressLocality": "Walnut",
    "addressRegion": "CA",
    "postalCode": "91789",
    "addressCountry": "US"
  },
  "numberOfBedrooms": 4,
  "numberOfBathroomsTotal": 4,
  "numberOfFullBathrooms": 2,
  "numberOfPartialBathrooms": 1,
  "floorSize": {
    "@type": "QuantitativeValue",
    "value": 2579,
    "unitCode": "FTK"
  },
  "yearBuilt": 2026
}
```