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Brand new flooring and huge backyard! Welcome to 1321 Glenthorpe Dr — a spacious and beautifully refreshed home located in the highly sought-after Diamond Bar High School district. This well-designed residence offers 4 bedrooms, 2 full bath and a half bath across approximately 2,432 sqft of living space, situated on an expansive 8,000+ sqft lot. The functional layout features a large living room, separate family room, formal dining room, and a bright breakfast nook, providing plenty of space for both everyday living and entertaining. Recent upgrades include brand new vinyl flooring and fresh interior paint, creating a clean, modern, and move-in ready environment. The oversized primary suite is a true retreat, complete with a sitting area for added comfort and flexibility. Three additional bedrooms are generously sized and share a well-appointed bathroom. Step outside to a large, landscaped backyard—perfect for gatherings, relaxation, or future customization. Conveniently located near top-rated schools, parks, shopping, and dining, this home offers an exceptional opportunity to enjoy comfort, space, and a prime Walnut location.
Listing agent: Kevin Yu DRE #02147630 by328733@gmail.com, Listing office: Real Broker
MLS data updated 10/20/2026, 4:52:53 AM PT
Source: CRMLS, MLS #: OC26093192
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Jul 28, 2026
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
$1,319,000Closed sale · Jul 28, 2026ZIP 91789 · Jul 2026
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.