# 21408 Running River Ct, Diamond Bar, CA 91765

> **TL;DR:** 5bd/4ba single family, $1,300,000 ($557/sqft), built 1977, 2,334 sqft.
> Fireplace, A/C. Est. $5,633/mo. Listed 3 days.

## Property at a Glance

| Attribute | Value |
|-----------|-------|
| Price | $1,300,000 |
| Price/sqft | $557 |
| Bedrooms | 5 |
| Bathrooms | 4 full |
| Square Feet | 2,334 |
| Year Built | 1977 |
| Lot Size | 7,980 sqft (0.18 acres) |
| Stories | 2 |
| Property Type | Single Family (Single Family Residence) |
| Status | For Sale |
| Days on Market | 3 |

## Estimated Monthly Costs

| Category | Amount |
|----------|--------|
| Mortgage (20% down, 6.5%) | $5,633 |
| **Total** | **$5,633** |

## Key Amenities

- Fireplace
- A/C

## Property Highlights

- Built in 1977
- 0.18 acre lot
- 2 stories
- Fireplace

## Description

### Agent Description
Picture yourself at 21408 Running River Ct, a residence designed for everyday comfort and enjoyment. Inside, a cozy fireplace provides warmth, while the kitchen features all stainless steel appliances complemented by an accent backsplash. The exterior boasts a covered patio extending to a private in ground pool, all within a fenced in backyard. This property is perfect for outdoor living and comfort.. Included 100-Day Home Warranty with buyer activation

## Location

- **Address:** 21408 Running River Ct, Diamond Bar, CA 91765
- **County:** Los Angeles
- **Coordinates:** 33.988421, -117.837787
- **Google Maps:** https://www.google.com/maps?q=33.988421,-117.837787

## Listing Agent

- **Name:** Melissa Westfall
- **Brokerage:** Opendoor Brokerage Inc.
- **Phone:** 4804625392
- **Email:** homes@opendoor.com

## Primary Photo

![21408 Running River Ct - Primary Photo](http://lh.rdcpix.com/59045df65bded13d85786c5abf703fe2l-f4057223223r.jpg)

*46 total photos available on [listing page](https://www.propertysimple.com/listing/21408-running-river-ct-diamond-bar-ca-91765-26840319)*

---

**MLS#:** 26840319 | **Updated:** 2026-06-17
**Source:** listhub

*Copyright © 2026 The MLS/CLAW. 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/21408-running-river-ct-diamond-bar-ca-91765-26840319)

---

## Structured Data

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  "@type": "RealEstateListing",
  "name": "21408 Running River Ct, Diamond Bar, CA 91765",
  "description": "Picture yourself at 21408 Running River Ct, a residence designed for everyday comfort and enjoyment. Inside, a cozy fireplace provides warmth, while the kitchen features all stainless steel appliances complemented by an accent backsplash. The exterior boasts a covered patio extending to a private in ground pool, all within a fenced in backyard. This property is perfect for outdoor living and comfort.. Included 100-Day Home Warranty with buyer activation",
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  "datePosted": "2026-06-17",
  "price": 1300000,
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  "numberOfBedrooms": 5,
  "numberOfBathroomsTotal": 4,
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```