3151 6th St
Boulder, CO 80304
5 bd 5 ba 4,502 sqft Built 2004 Lot 6,380 sqft single_family
Most recent sale
$1,148,800
Mar 11, 2005
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Oct 14, 2025 | Listing removed | $2,850,000 | IRES |
| May 14, 2025 | Sold | $2,337,000 | IRES |
| Feb 24, 2025 | Sold | $2,300,000 | IRES |
| May 16, 2024 | Listed | $3,300,000 | REcolorado |
| May 15, 2024 | Listed | $3,300,000 | IRES |
| Mar 11, 2005 | Sold | $1,148,800 | Public Record |
| Jun 1, 2004 | Sold | $437,400 | Public Record |
| Sep 23, 2003 | Sold | $437,400 | Public Record |
| Nov 5, 1980 | Sold | $92,500 | Public Record |
| Sep 8, 1980 | Sold | $90,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $85,856 | $86,625 | $172,481 | $16,446 |
| 2024 | $85,856 | $86,625 | $172,481 | $16,896 |
| 2023 | $99,944 | $96,004 | $195,948 | $16,603 |
| 2022 | $77,096 | $68,944 | $146,040 | $13,561 |
| 2021 | $79,315 | $70,928 | $150,243 | $12,932 |
| 2020 | $65,673 | $62,849 | $128,522 | $11,187 |
| 2019 | $65,673 | $62,849 | $128,522 | $11,016 |
| 2018 | $60,422 | $50,400 | $110,822 | $9,608 |
| 2017 | $60,422 | $50,400 | $110,822 | $9,307 |
| 2016 | $66,482 | $44,337 | $110,819 | $9,593 |
| 2015 | $66,482 | $44,337 | $110,819 | $9,084 |
| 2014 | $51,875 | $39,880 | $91,755 | $7,888 |
| 2013 | $51,875 | $39,880 | $91,755 | $7,714 |
| 2011 | $63,919 | $29,691 | $93,610 | $7,772 |
| 2010 | $63,919 | $29,691 | $93,610 | $8,048 |
| 2009 | $63,919 | $29,691 | $93,610 | $7,515 |
| 2008 | $71,780 | $33,830 | $105,610 | $7,767 |
| 2007 | — | — | $105,613 | $7,502 |
Property facts
Year built
2004
Property type
single_family
Stories
2
Beds
5
Baths
5
Living area
4,502 sqft
Lot size
6,380 sqft
ZIP code
80304
City
Boulder
Street
6th St
Coordinates
40.03203, -105.28946
Comparable properties nearby
Frequently asked questions
When did 3151 6th St last sell?
3151 6th St most recently sold on Mar 11, 2005 for $1,148,800.
What is the current tax assessment for 3151 6th St?
The most recent total assessment for 3151 6th St (year 2025) is $172,481 with $16,446 in property tax.
How does 3151 6th St's assessment compare to its last sale price?
The current assessment is 85.0% below the last sale price of $1,148,800.
When was 3151 6th St built?
3151 6th St was built in 2004.
How does 3151 6th St compare to others on 6th St?
We track 8 other properties on 6th St. Browse the list under "Other properties on 6th St" to compare beds, baths, and sale history.
What are the property facts for 3151 6th St?
3151 6th St is a 5 bed, 5 bath, 4,502 sqft, 6,380 sqft lot single_family.
Is 3151 6th St a flip candidate?
No — 3151 6th St does not appear in our flips dataset.
Is 3151 6th St a tax-appeal candidate?
No — 3151 6th 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
+5.1%
Implied 1-yr
+20.2%
2026 Q3
$2.3M
2026 Q4
$2.39M
ZIP 80304 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 6th St