3121 133rd Ave
Thornton, CO 80241
4 bd 3 ba 2,080 sqft Built 1984 Lot 6,617 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 | $26,590 | $7,480 | $34,070 | $3,834 |
| 2023 | $30,920 | $7,100 | $38,020 | $3,514 |
| 2022 | $17,140 | $7,300 | $24,440 | $2,692 |
| 2021 | $17,630 | $7,510 | $25,140 | $2,781 |
| 2020 | $16,020 | $7,510 | $23,530 | $1,827 |
| 2019 | $16,020 | $7,510 | $23,530 | $1,831 |
| 2018 | $14,050 | $7,490 | $21,540 | $1,650 |
| 2017 | $14,050 | $7,490 | $21,540 | $2,253 |
| 2016 | $12,140 | $4,540 | $16,680 | $937 |
| 2015 | $6,350 | $2,370 | $8,720 | $935 |
| 2014 | $5,720 | $1,790 | $7,510 | $827 |
| 2013 | $5,720 | $1,790 | $7,510 | $824 |
| 2011 | $11,140 | $3,900 | $15,040 | $1,678 |
| 2010 | $11,140 | $3,900 | $15,040 | $1,636 |
| 2009 | $10,750 | $3,900 | $14,650 | $1,632 |
| 2007 | $11,290 | $4,140 | $15,430 | $816 |
Property facts
Year built
1984
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
2,080 sqft
Lot size
6,617 sqft
ZIP code
80241
City
Thornton
Street
133rd Ave
Coordinates
39.93513, -104.94805
Comparable properties nearby
Frequently asked questions
When did 3121 133rd Ave last sell?
No public-record sale is on file for 3121 133rd Ave.
What is the current tax assessment for 3121 133rd Ave?
The most recent total assessment for 3121 133rd Ave (year 2025) is $34,070 with $3,834 in property tax.
When was 3121 133rd Ave built?
3121 133rd Ave was built in 1984.
How does 3121 133rd Ave compare to others on 133rd Ave?
We track 8 other properties on 133rd Ave. Browse the list under "Other properties on 133rd Ave" to compare beds, baths, and sale history.
What are the property facts for 3121 133rd Ave?
3121 133rd Ave is a 4 bed, 3 bath, 2,080 sqft, 6,617 sqft lot single_family.
Is 3121 133rd Ave a flip candidate?
No — 3121 133rd Ave does not appear in our flips dataset.
Is 3121 133rd Ave a tax-appeal candidate?
No — 3121 133rd 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 133rd Ave