20980 Cornerstone Dr
Walnut, CA 91789
3 bd 4 ba 1,760 sqft Built 2018 Lot 17,441 sqft condos
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $306,651 | $467,284 | $773,935 | $9,586 |
| 2024 | $306,651 | $467,284 | $773,935 | $9,116 |
| 2023 | $294,745 | $449,140 | $743,885 | $8,889 |
| 2022 | $288,966 | $440,334 | $729,300 | $8,702 |
| 2021 | $283,300 | $431,700 | $715,000 | $8,618 |
| 2020 | $287,046 | $406,900 | $693,946 | $8,336 |
| 2019 | $281,418 | $398,922 | $680,340 | $8,173 |
| 2018 | — | $207,210 | $207,210 | $2,565 |
Property facts
Year built
2018
Property type
condos
Stories
3
Beds
3
Baths
4
Living area
1,760 sqft
Lot size
17,441 sqft
ZIP code
91789
City
Walnut
Street
Cornerstone Dr
Coordinates
34.01716, -117.84833
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 20980 Cornerstone Dr last sell?
No public-record sale is on file for 20980 Cornerstone Dr.
What is the current tax assessment for 20980 Cornerstone Dr?
The most recent total assessment for 20980 Cornerstone Dr (year 2025) is $773,935 with $9,586 in property tax.
When was 20980 Cornerstone Dr built?
20980 Cornerstone Dr was built in 2018.
How does 20980 Cornerstone Dr compare to others on Cornerstone Dr?
We track 8 other properties on Cornerstone Dr. Browse the list under "Other properties on Cornerstone Dr" to compare beds, baths, and sale history.
What are the property facts for 20980 Cornerstone Dr?
20980 Cornerstone Dr is a 3 bed, 4 bath, 1,760 sqft, 17,441 sqft lot condos.
Is 20980 Cornerstone Dr a flip candidate?
No — 20980 Cornerstone Dr does not appear in our flips dataset.
Is 20980 Cornerstone Dr a tax-appeal candidate?
No — 20980 Cornerstone Dr is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+5.8%
Implied 1-yr
+23.2%
2026 Q3
$1.76M
2026 Q4
$1.84M
ZIP 91789 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Cornerstone Dr