1010 Union Ave
Boulder, CO 80304
6 bd 4 ba 3,175 sqft Built 1989 Lot 10,454 sqft single_family
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 | $47,819 | $76,431 | $124,250 | $11,847 |
| 2024 | $47,819 | $76,431 | $124,250 | $12,010 |
| 2023 | $56,937 | $83,415 | $140,352 | $11,802 |
| 2022 | $35,014 | $66,831 | $101,845 | $9,457 |
| 2021 | $36,022 | $68,754 | $104,776 | $9,018 |
| 2020 | $41,620 | $50,551 | $92,171 | $8,023 |
| 2019 | $41,620 | $50,551 | $92,171 | $7,900 |
| 2018 | $43,740 | $33,552 | $77,292 | $6,701 |
| 2017 | $43,740 | $33,552 | $77,292 | $6,491 |
| 2016 | $25,607 | $47,521 | $73,128 | $6,330 |
| 2015 | $25,607 | $47,521 | $73,128 | $5,994 |
| 2014 | $40,572 | $20,696 | $61,268 | $5,267 |
| 2013 | $40,572 | $20,696 | $61,268 | $5,151 |
| 2011 | $26,905 | $21,253 | $48,158 | $3,998 |
| 2010 | $26,905 | $21,253 | $48,158 | $4,378 |
| 2009 | $26,905 | $21,253 | $48,158 | $4,088 |
| 2008 | $19,960 | $25,870 | $45,830 | $3,370 |
Property facts
Year built
1989
Property type
single_family
Stories
2
Beds
6
Baths
4
Living area
3,175 sqft
Lot size
10,454 sqft
ZIP code
80304
City
Boulder
Street
Union Ave
Coordinates
40.05290, -105.28434
Comparable properties nearby
Frequently asked questions
When did 1010 Union Ave last sell?
No public-record sale is on file for 1010 Union Ave.
What is the current tax assessment for 1010 Union Ave?
The most recent total assessment for 1010 Union Ave (year 2025) is $124,250 with $11,847 in property tax.
When was 1010 Union Ave built?
1010 Union Ave was built in 1989.
How does 1010 Union Ave compare to others on Union Ave?
We track 8 other properties on Union Ave. Browse the list under "Other properties on Union Ave" to compare beds, baths, and sale history.
What are the property facts for 1010 Union Ave?
1010 Union Ave is a 6 bed, 4 bath, 3,175 sqft, 10,454 sqft lot single_family.
Is 1010 Union Ave a flip candidate?
No — 1010 Union Ave does not appear in our flips dataset.
Is 1010 Union Ave a tax-appeal candidate?
No — 1010 Union 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
+1.2%
Implied 1-yr
+5.0%
2026 Q3
$2.17M
2026 Q4
$2.2M
ZIP 80304 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union Ave