4321 109th Ave
Thornton, CO 80233
4 bd 2 ba 1,885 sqft Built 1978 Lot 7,910 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 | $26,110 | $6,460 | $32,570 | $3,665 |
| 2023 | $28,070 | $6,090 | $34,160 | $3,119 |
| 2022 | $18,080 | $5,700 | $23,780 | $2,619 |
| 2021 | $18,600 | $5,860 | $24,460 | $2,706 |
| 2020 | $16,300 | $5,860 | $22,160 | $2,472 |
| 2019 | $16,300 | $5,860 | $22,160 | $2,477 |
| 2018 | $13,480 | $5,760 | $19,240 | $2,213 |
| 2017 | $13,480 | $5,760 | $19,240 | $2,012 |
| 2016 | $13,480 | $3,260 | $16,740 | $1,798 |
| 2015 | $13,480 | $3,260 | $16,740 | $1,796 |
| 2014 | $10,500 | $2,550 | $13,050 | $1,440 |
| 2013 | $10,500 | $2,550 | $13,050 | $1,435 |
| 2011 | $10,540 | $2,470 | $13,010 | $1,451 |
| 2010 | $10,540 | $2,470 | $13,010 | $1,403 |
| 2009 | $10,100 | $2,470 | $12,570 | $1,400 |
| 2007 | $12,300 | $2,950 | $15,250 | $1,613 |
Property facts
Year built
1978
Property type
single_family
Stories
1
Beds
4
Baths
2
Living area
1,885 sqft
Lot size
7,910 sqft
ZIP code
80233
City
Thornton
Street
109th Ave
Coordinates
39.89333, -104.93533
Comparable properties nearby
Frequently asked questions
When did 4321 109th Ave last sell?
No public-record sale is on file for 4321 109th Ave.
What is the current tax assessment for 4321 109th Ave?
The most recent total assessment for 4321 109th Ave (year 2025) is $32,570 with $3,665 in property tax.
When was 4321 109th Ave built?
4321 109th Ave was built in 1978.
How does 4321 109th Ave compare to others on 109th Ave?
We track 8 other properties on 109th Ave. Browse the list under "Other properties on 109th Ave" to compare beds, baths, and sale history.
What are the property facts for 4321 109th Ave?
4321 109th Ave is a 4 bed, 2 bath, 1,885 sqft, 7,910 sqft lot single_family.
Is 4321 109th Ave a flip candidate?
No — 4321 109th Ave does not appear in our flips dataset.
Is 4321 109th Ave a tax-appeal candidate?
No — 4321 109th 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
+0.5%
Implied 1-yr
+2.1%
2026 Q3
$501.5K
2026 Q4
$504.1K
ZIP 80233 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 109th Ave