3145 23rd St
Boulder, CO 80304
4 bd 3 ba 2,151 sqft Built 1959 Lot 6,979 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 | $20,713 | $54,213 | $74,926 | $7,224 |
| 2024 | $20,713 | $54,213 | $74,926 | $7,086 |
| 2023 | $26,016 | $57,406 | $83,422 | $6,961 |
| 2022 | $19,745 | $43,333 | $63,078 | $5,932 |
| 2021 | $20,313 | $44,580 | $64,893 | $5,660 |
| 2020 | $11,168 | $44,688 | $55,856 | $4,861 |
| 2019 | $11,168 | $44,688 | $55,856 | $4,787 |
| 2018 | $8,741 | $34,992 | $43,733 | $3,791 |
| 2017 | $8,741 | $34,992 | $43,733 | $3,673 |
| 2016 | $7,729 | $30,885 | $38,614 | $3,342 |
| 2015 | $7,729 | $30,885 | $38,614 | $3,165 |
| 2014 | $16,732 | $16,557 | $33,289 | $2,177 |
| 2013 | $16,732 | $16,557 | $33,289 | $2,129 |
| 2011 | $16,875 | $15,602 | $32,477 | $2,696 |
| 2010 | $16,875 | $15,602 | $32,477 | $2,821 |
| 2009 | $16,875 | $15,602 | $32,477 | $2,634 |
| 2008 | $10,280 | $19,100 | $29,380 | $1,575 |
Property facts
Year built
1959
Property type
single_family
Stories
1
Beds
4
Baths
3
Living area
2,151 sqft
Lot size
6,979 sqft
ZIP code
80304
City
Boulder
Street
23rd St
Coordinates
40.03186, -105.26726
Comparable properties nearby
Frequently asked questions
When did 3145 23rd St last sell?
No public-record sale is on file for 3145 23rd St.
What is the current tax assessment for 3145 23rd St?
The most recent total assessment for 3145 23rd St (year 2025) is $74,926 with $7,224 in property tax.
When was 3145 23rd St built?
3145 23rd St was built in 1959.
How does 3145 23rd St compare to others on 23rd St?
We track 8 other properties on 23rd St. Browse the list under "Other properties on 23rd St" to compare beds, baths, and sale history.
What are the property facts for 3145 23rd St?
3145 23rd St is a 4 bed, 3 bath, 2,151 sqft, 6,979 sqft lot single_family.
Is 3145 23rd St a flip candidate?
No — 3145 23rd St does not appear in our flips dataset.
Is 3145 23rd St a tax-appeal candidate?
No — 3145 23rd St 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 23rd St