520 Mapleton Ave
Boulder, CO 80304
4 bd 2 ba 1,928 sqft Built 1958 Lot 7,121 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Jan 17, 2023 | Sold | $1,725,000 | Public Record |
| Nov 1, 2022 | Price changed | $1,875,000 | IRES |
| Sep 28, 2022 | Price changed | $1,925,000 | MLS #973503 |
| Aug 17, 2022 | Listed | $2,100,000 | MLS #973503 |
| Mar 19, 2021 | Listed for rent | $4,000 | AppfolioUnits |
| Feb 24, 2021 | Listed for rent | $4,000 | AppfolioUnits |
| Oct 27, 2017 | Listing removed | $3,600 | AppfolioUnits |
| Sep 20, 2017 | Price changed for rent | $3,600 | AppfolioUnits |
| Aug 31, 2017 | Price changed for rent | $3,800 | AppfolioUnits |
| Jul 18, 2017 | Price changed for rent | $3,950 | AppfolioUnits |
| May 27, 2017 | Listed for rent | $4,200 | AppfolioUnits |
| Sep 9, 1986 | Sold | $118,000 | Public Record |
| Apr 1, 1974 | Sold | $36,500 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $30,094 | $76,481 | $106,575 | $10,161 |
| 2024 | $30,094 | $76,481 | $106,575 | $10,719 |
| 2023 | $19,330 | $106,329 | $125,659 | $10,533 |
| 2022 | $39,483 | $80,245 | $119,728 | $11,193 |
| 2021 | $40,619 | $82,554 | $123,173 | $10,677 |
| 2020 | $34,835 | $76,434 | $111,269 | $9,685 |
| 2019 | $34,835 | $76,434 | $111,269 | $9,537 |
| 2018 | $30,838 | $69,192 | $100,030 | $8,673 |
| 2017 | $30,838 | $69,192 | $100,030 | $8,401 |
| 2016 | $29,866 | $60,655 | $90,521 | $7,836 |
| 2015 | $29,866 | $60,655 | $90,521 | $7,420 |
| 2014 | $45,054 | $25,392 | $70,446 | $6,057 |
| 2013 | $45,054 | $25,392 | $70,446 | $5,923 |
| 2012 | $46,646 | $30,805 | $77,451 | $6,488 |
| 2011 | $46,646 | $30,805 | $77,451 | $6,431 |
| 2010 | $46,646 | $30,805 | $77,451 | $5,719 |
| 2009 | $46,646 | $30,805 | $77,451 | $5,340 |
| 2008 | $28,190 | $45,370 | $73,560 | $5,410 |
Property facts
Year built
1958
Property type
single_family
Stories
2
Beds
4
Baths
2
Living area
1,928 sqft
Lot size
7,121 sqft
ZIP code
80304
City
Boulder
Street
Mapleton Ave
Coordinates
40.02019, -105.28941
Comparable properties nearby
Frequently asked questions
When did 520 Mapleton Ave last sell?
No public-record sale is on file for 520 Mapleton Ave.
What is the current tax assessment for 520 Mapleton Ave?
The most recent total assessment for 520 Mapleton Ave (year 2025) is $106,575 with $10,161 in property tax.
When was 520 Mapleton Ave built?
520 Mapleton Ave was built in 1958.
How does 520 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 520 Mapleton Ave?
520 Mapleton Ave is a 4 bed, 2 bath, 1,928 sqft, 7,121 sqft lot single_family.
Is 520 Mapleton Ave a flip candidate?
No — 520 Mapleton Ave does not appear in our flips dataset.
Is 520 Mapleton Ave a tax-appeal candidate?
No — 520 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