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Closed
- Listed price
- $779,000
- Listed May 7, 2021 · $428/sq ft
- Sold price
- $777,000
- Sold Jun 14, 2021
4 beds|4 ba|1,820 sqft|17,456 sqft lot|2018 Built|6 days listed
21012 Cornerstone Dr, Walnut, CA 91789
Property Description
Newer 4 bed 3.5 baths end unit town-house with an excellent open floor plan and is within the Award Winning Walnut School District. Close to all amenities, schools, restaurants, shopping and freeways. A separate bedroom with a 3/4 bath on the ground floor can be used as a guest room or an office. Entering the second floor is a spacious living room that merges gracefully with the dining area where a sliding patio door opens to a balcony. An elegant contemporary kitchen with granite counter tops comes with a large separate island that makes entertaining guests warm and welcoming.
Listing agent: HENRY HON TSAIDRE #01014152henryhtsai@gmail.com, Listing office: TOP 1 REALTY
MLS data updated 10/20/2026, 2:56:33 AM PT
Source: CRMLSMLS #: WS21097177
Belmont insights
Price & property history
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Last recorded sale$777,000
Jun 14, 2021
Available records22021
From MLS recordsActual listing and closing events
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
No recordNo property-price record in this range.ZIP 91789 · Oct 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.This home · 0 price recordsNo records in this period
ZIP 91789 · same property typeLoading eligible closed sales…
Freddie Mac · national weekly ratesLoading mortgage-rate history…
Recorded sales in this period (0)
No recorded sales in this range. Select All available for older records; missing records do not mean the home never sold.
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.
View listing & sale records
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.