5421 129th Ave
Thornton, CO 80241
4 bd 3 ba 2,080 sqft Built 1997 Lot 9,975 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 | $31,350 | $6,800 | $38,150 | $4,293 |
| 2023 | $33,420 | $6,160 | $39,580 | $3,673 |
| 2022 | $21,670 | $6,320 | $27,990 | $3,083 |
| 2021 | $22,300 | $6,510 | $28,810 | $3,187 |
| 2020 | $20,180 | $6,510 | $26,690 | $2,977 |
| 2019 | $20,180 | $6,510 | $26,690 | $2,983 |
| 2018 | $17,590 | $6,840 | $24,430 | $2,811 |
| 2017 | $17,590 | $6,840 | $24,430 | $2,555 |
| 2016 | $15,070 | $3,820 | $18,890 | $2,030 |
| 2015 | $15,070 | $3,820 | $18,890 | $2,027 |
| 2014 | $12,790 | $2,950 | $15,740 | $1,737 |
| 2013 | $12,790 | $2,950 | $15,740 | $1,730 |
| 2011 | $14,400 | $3,020 | $17,420 | $1,943 |
| 2010 | $14,400 | $3,020 | $17,420 | $1,900 |
| 2009 | $13,920 | $3,100 | $17,020 | $1,896 |
| 2007 | $15,400 | $3,340 | $18,740 | $1,982 |
Property facts
Year built
1997
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
2,080 sqft
Lot size
9,975 sqft
ZIP code
80241
City
Thornton
Street
129th Ave
Coordinates
39.93118, -104.92554
Comparable properties nearby
Frequently asked questions
When did 5421 129th Ave last sell?
No public-record sale is on file for 5421 129th Ave.
What is the current tax assessment for 5421 129th Ave?
The most recent total assessment for 5421 129th Ave (year 2025) is $38,150 with $4,293 in property tax.
When was 5421 129th Ave built?
5421 129th Ave was built in 1997.
How does 5421 129th Ave compare to others on 129th Ave?
We track 8 other properties on 129th Ave. Browse the list under "Other properties on 129th Ave" to compare beds, baths, and sale history.
What are the property facts for 5421 129th Ave?
5421 129th Ave is a 4 bed, 3 bath, 2,080 sqft, 9,975 sqft lot single_family.
Is 5421 129th Ave a flip candidate?
No — 5421 129th Ave does not appear in our flips dataset.
Is 5421 129th Ave a tax-appeal candidate?
No — 5421 129th 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
+8.4%
2026 Q3
$570.8K
2026 Q4
$581.4K
ZIP 80241 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 129th Ave