800 Coldstream Court, Diamond Bar, CA 91765
Single-family home · 2 recorded sales since 2016
Sold September 2026
Listing Agent: Adrian Zang (DRE #02245098) · Listing Office: Real Broker · Contact: 6263663908 · Bought with: Ivy Kung · eCentury Mortgage & Realty Inc · MLS #TR26091136 · Source: CRMLS
How this sale compares
800 Coldstream Court sold for $1,270,000 in September 2026, 8.6% under its $1,390,000 list price, after 84 days on the market. It was first listed at $1,490,000. That works out to $504 per square foot on 2,522 square feet. Across 182 closed sales in 91765 over the last 12 months, the median sold price is $1,072,500 and the median is $559 per square foot — 11% above this sale's $504. 4-bedroom rentals in 91765 currently list at a median of $4,600 a month (17 listings).
| Quarter | Closed sales in 91765 | Median sold price |
|---|---|---|
| Q1 2026 | 16 | $1,050,000 |
| Q2 2026 | 87 | $1,128,000 |
| Q3 2026 | 79 | $945,000 |
Figures are MLS-reported closed sales (CRMLS); ZIP medians cover the last 12 months. Nalren does not estimate values. Recently sold in Diamond Bar · Homes for sale in 91765
About this single-family home
Nestled in a peaceful cul-de-sac in the highly sought-after community of Diamond Bar, this beautifully renovated residence offers the perfect blend of comfort, style, and functionality. Featuring 4 spacious bedrooms plus a versatile loft, this home provides exceptional flexibility for modern living — ideal as a home office, media room, kids’ play area, or potential 5th bedroom. Extensively updated in 2023, the interior showcases contemporary finishes, upgraded flooring, stylish lighting, and a bright open-concept layout designed for both everyday living and entertaining. The spacious living and dining areas flow seamlessly into the beautifully updated kitchen, creating a warm and inviting atmosphere filled with natural light. Step outside to your private backyard retreat situated on a generously sized lot, complete with a sparkling pool & spa perfect for enjoying Southern California living year-round. The expansive outdoor space offers endless possibilities for entertaining, relaxing, gardening, or exploring potential ADU opportunities (buyer to independently verify with city). Conveniently located near top-rated schools, parks, shopping centers, dining, and major freeways, this property combines tranquility with accessibility. Whether you're looking for a comfortable family home, an entertainer’s dream, or an investment with future upside, this exceptional Diamond Bar property delivers outstanding value and lifestyle. All information is deemed reliable but not guaranteed. Buyers are advised to independently verify all property details, permits, square footage, zoning, and potential uses to their satisfaction
Listing description from the September 2026 sale, as reported to CRMLS.
Sale history
Recent sales near 800 Coldstream Court
- 1135 Summitridge Drive — Sold $1,440,600 · 4 bd · 3 ba · 3,203 sqft · Aug 2026 · 0.6 mi
- 689 Leyland Drive — Sold $2,745,000 · 6 bd · 5 ba · 6,343 sqft · Aug 2026 · 0.6 mi
- 23601 Ridgecrest Court — Sold $1,990,000 · 5 bd · 5 ba · 4,212 sqft · Sep 2026 · 0.9 mi
- 23803 Gold Rush Drive — Sold $1,389,000 · 4 bd · 3 ba · 2,647 sqft · Jul 2026 · 0.9 mi
- 1003 Quiet Creek Ln — Sold $635,000 · 3 bd · 2 ba · 989 sqft · Aug 2026 · 0.9 mi
- 492 Ballena — Sold $960,000 · 4 bd · 2 ba · 1,827 sqft · Aug 2026 · 1.0 mi
- 415 San Leandro — Sold $1,290,000 · 4 bd · 4 ba · 2,520 sqft · Jul 2026 · 1.0 mi
- 23819 Country View — Sold $1,130,000 · 4 bd · 2 ba · 1,704 sqft · Sep 2026 · 1.2 mi
MLS-reported closed sales in 91765, nearest first (last 12 months). All recent sales in Diamond Bar →
Questions about 800 Coldstream Court
When did 800 Coldstream Court last sell?
800 Coldstream Court last sold in September 2026 for $1,270,000, according to CRMLS-reported closed sales. Nalren has 2 recorded sales at this address since 2016.
What did 800 Coldstream Court sell for?
$1,270,000, 8.6% below the $1,390,000 list price, after 84 days on the market — about $504 per square foot.
How does that compare to other Diamond Bar sales?
182 homes closed in ZIP 91765 over the last 12 months at a median of $1,072,500 ($559 per square foot). This sale was $504 per square foot.
Is 800 Coldstream Court for sale now?
800 Coldstream Court is not currently listed on the MLS. Browse current homes for sale in Diamond Bar on Nalren.
What do 4-bedroom homes rent for in 91765?
4-bedroom rentals in 91765 currently list at a median of $4,600 per month across 17 listings on Nalren.