3900 Union Ave
Denver, CO 80236
3 bd 4 ba 2,438 sqft Built 1989 Lot 8,400 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 | $35,160 | $5,700 | $40,860 | $3,525 |
| 2024 | $35,160 | $5,700 | $40,860 | $2,968 |
| 2023 | $35,050 | $2,430 | $37,480 | $2,904 |
| 2022 | $25,850 | $6,340 | $32,190 | $2,559 |
| 2021 | $26,600 | $6,520 | $33,120 | $2,471 |
| 2020 | $23,970 | $5,930 | $29,900 | $2,218 |
| 2019 | $23,970 | $5,930 | $29,900 | $2,156 |
| 2018 | $20,170 | $5,370 | $25,540 | $1,975 |
| 2017 | $20,170 | $5,370 | $25,540 | $1,970 |
| 2016 | $17,290 | $5,940 | $23,230 | $1,894 |
| 2015 | $17,290 | $5,940 | $23,230 | $1,814 |
| 2014 | $14,500 | $3,980 | $18,480 | $1,534 |
| 2013 | $14,500 | $3,980 | $18,480 | $1,535 |
| 2012 | $16,900 | $3,980 | $20,880 | $1,755 |
| 2010 | $16,900 | $3,980 | $20,880 | $1,444 |
| 2009 | $17,710 | $3,980 | $21,690 | $1,412 |
| 2008 | $17,710 | $3,980 | $21,690 | $1,423 |
| 2007 | $17,330 | $3,980 | $21,310 | $1,425 |
Property facts
Year built
1989
Property type
single_family
Stories
2
Beds
3
Baths
4
Living area
2,438 sqft
Lot size
8,400 sqft
ZIP code
80236
City
Denver
Street
Union Ave
Coordinates
39.63160, -105.04030
Comparable properties nearby
Frequently asked questions
When did 3900 Union Ave last sell?
No public-record sale is on file for 3900 Union Ave.
What is the current tax assessment for 3900 Union Ave?
The most recent total assessment for 3900 Union Ave (year 2025) is $40,860 with $3,525 in property tax.
When was 3900 Union Ave built?
3900 Union Ave was built in 1989.
How does 3900 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 3900 Union Ave?
3900 Union Ave is a 3 bed, 4 bath, 2,438 sqft, 8,400 sqft lot single_family.
Is 3900 Union Ave a flip candidate?
No — 3900 Union Ave does not appear in our flips dataset.
Is 3900 Union Ave a tax-appeal candidate?
No — 3900 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
-1.0%
Implied 1-yr
-3.8%
2026 Q2
$423.8K
2026 Q3
$423.8K
ZIP 80236 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union Ave