51 21st Ave
Longmont, CO 80501
2 bd 2 ba 972 sqft Built 1999 Lot 261,360 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 | $18,163 | — | $18,163 | $1,906 |
| 2024 | $18,163 | — | $18,163 | $1,471 |
| 2023 | $19,073 | — | $19,073 | $1,451 |
| 2022 | $15,943 | — | $15,943 | $1,577 |
| 2021 | $16,402 | — | $16,402 | $1,598 |
| 2020 | $14,886 | — | $14,886 | $1,446 |
| 2019 | $14,886 | — | $14,886 | $1,423 |
| 2018 | $14,530 | — | $14,530 | $1,380 |
| 2017 | $14,530 | — | $14,530 | $1,361 |
| 2016 | $9,799 | — | $9,799 | $936 |
| 2015 | $9,799 | — | $9,799 | $892 |
| 2014 | $7,809 | — | $7,809 | $726 |
| 2013 | $7,809 | — | $7,809 | $729 |
| 2011 | $8,278 | — | $8,278 | $719 |
| 2010 | $8,278 | — | $8,278 | $795 |
| 2009 | $8,278 | — | $8,278 | $781 |
| 2008 | $11,140 | — | $11,140 | $935 |
Property facts
Year built
1999
Property type
condos
Stories
2
Beds
2
Baths
2
Living area
972 sqft
Lot size
261,360 sqft
ZIP code
80501
City
Longmont
Street
21st Ave
Coordinates
40.19441, -105.09397
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 51 21st Ave last sell?
No public-record sale is on file for 51 21st Ave.
What is the current tax assessment for 51 21st Ave?
The most recent total assessment for 51 21st Ave (year 2025) is $18,163 with $1,906 in property tax.
When was 51 21st Ave built?
51 21st Ave was built in 1999.
How does 51 21st Ave compare to others on 21st Ave?
We track 8 other properties on 21st Ave. Browse the list under "Other properties on 21st Ave" to compare beds, baths, and sale history.
What are the property facts for 51 21st Ave?
51 21st Ave is a 2 bed, 2 bath, 972 sqft, 261,360 sqft lot condos.
Is 51 21st Ave a flip candidate?
No — 51 21st Ave does not appear in our flips dataset.
Is 51 21st Ave a tax-appeal candidate?
No — 51 21st Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+2.1%
Implied 1-yr
+8.3%
2026 Q3
$541.1K
2026 Q4
$551K
ZIP 80501 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 21st Ave