1521 Mapleton Ave
Boulder, CO 80304
3 bd 5 ba 3,064 sqft Built 1988 Lot 4,414 sqft single_family
Most recent sale
$588,500
Apr 10, 1998
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Nov 28, 2025 | Listing removed | $2,500,000 | IRES |
| Nov 10, 2025 | Sold | $1,900,000 | IRES |
| Apr 3, 2025 | Price changed | $2,450,000 | IRES |
| Mar 5, 2025 | Listing removed | $2,695,000 | IRES |
| Jan 22, 2025 | Listed | $2,500,000 | IRES |
| Aug 2, 2024 | Listing removed | $2,750,000 | IRES |
| Mar 7, 2024 | Listed | $2,695,000 | REcolorado |
| Sep 6, 2022 | Listed | $3,500,000 | MLS #974754 |
| Apr 10, 1998 | Sold | $588,500 | Public Record |
| May 3, 1993 | Sold | $430,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $105,131 | $60,281 | $165,412 | $15,771 |
| 2024 | $105,131 | $60,281 | $165,412 | $15,670 |
| 2023 | $118,751 | $63,248 | $181,999 | $14,820 |
| 2022 | $86,090 | $48,011 | $134,101 | $11,807 |
| 2021 | $88,567 | $49,392 | $137,959 | $11,259 |
| 2020 | $71,636 | $47,762 | $119,398 | $9,771 |
| 2019 | $71,636 | $47,762 | $119,398 | $9,621 |
| 2018 | $64,253 | $42,840 | $107,093 | $8,661 |
| 2017 | $64,253 | $42,840 | $107,093 | $8,390 |
| 2016 | $62,510 | $41,710 | $104,220 | $8,333 |
| 2015 | $62,510 | $41,710 | $104,220 | $7,891 |
| 2014 | $39,800 | $39,800 | $79,600 | $6,159 |
| 2013 | $39,800 | $39,800 | $79,600 | $6,024 |
| 2012 | $29,850 | $31,840 | $61,690 | $4,501 |
| 2011 | $29,850 | $31,840 | $61,690 | $5,122 |
| 2010 | $37,810 | $31,840 | $69,650 | $5,662 |
| 2009 | $37,810 | $31,840 | $69,650 | $5,286 |
| 2008 | $33,130 | $27,860 | $60,990 | $4,486 |
Property facts
Year built
1988
Property type
single_family
Stories
3
Beds
3
Baths
5
Living area
3,064 sqft
Lot size
4,414 sqft
ZIP code
80304
City
Boulder
Street
Mapleton Ave
Coordinates
40.02202, -105.27675
Comparable properties nearby
Frequently asked questions
When did 1521 Mapleton Ave last sell?
1521 Mapleton Ave most recently sold on Apr 10, 1998 for $588,500.
What is the current tax assessment for 1521 Mapleton Ave?
The most recent total assessment for 1521 Mapleton Ave (year 2025) is $165,412 with $15,771 in property tax.
How does 1521 Mapleton Ave's assessment compare to its last sale price?
The current assessment is 71.9% below the last sale price of $588,500.
When was 1521 Mapleton Ave built?
1521 Mapleton Ave was built in 1988.
How does 1521 Mapleton Ave compare to others on Mapleton Ave?
We track 8 other properties on Mapleton Ave. Browse the list under "Other properties on Mapleton Ave" to compare beds, baths, and sale history.
What are the property facts for 1521 Mapleton Ave?
1521 Mapleton Ave is a 3 bed, 5 bath, 3,064 sqft, 4,414 sqft lot single_family.
Is 1521 Mapleton Ave a flip candidate?
No — 1521 Mapleton Ave does not appear in our flips dataset.
Is 1521 Mapleton Ave a tax-appeal candidate?
No — 1521 Mapleton 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
+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 Mapleton Ave