505 Maxwell Ave
Boulder, CO 80304
4 bd 4 ba 4,091 sqft Built 1908 Lot 7,255 sqft single_family
Most recent sale
$3,500,000
Mar 30, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Aug 1, 2024 | Listing removed | $3,750,000 | IRES |
| Mar 30, 2022 | Sold | $3,500,000 | MLS #959546 |
| Feb 24, 2022 | Listed | $3,500,000 | MLS #959546 |
| Sep 24, 2021 | Listed | $3,750,000 | MLS #951808 |
| Sep 25, 2000 | Sold | $589,900 | Public Record |
| Dec 4, 1995 | Sold | $344,000 | Public Record |
| Dec 28, 1989 | Sold | $145,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $47,144 | $104,544 | $151,688 | $14,463 |
| 2024 | $47,144 | $104,544 | $151,688 | $14,433 |
| 2023 | $54,096 | $113,820 | $167,916 | $14,182 |
| 2022 | $70,355 | $73,524 | $143,879 | $13,361 |
| 2021 | $72,379 | $75,640 | $148,019 | $12,740 |
| 2020 | $38,117 | $75,933 | $114,050 | $9,927 |
| 2019 | $38,117 | $75,933 | $114,050 | $9,776 |
| 2018 | $35,906 | $58,968 | $94,874 | $8,226 |
| 2017 | $35,906 | $58,968 | $94,874 | $7,968 |
| 2016 | $40,174 | $47,442 | $87,616 | $7,584 |
| 2015 | $40,174 | $47,442 | $87,616 | $7,182 |
| 2014 | $47,760 | $31,840 | $79,600 | $6,844 |
| 2013 | $47,760 | $31,840 | $79,600 | $6,693 |
| 2012 | $54,367 | $25,472 | $79,839 | $6,688 |
| 2011 | $54,367 | $25,472 | $79,839 | $6,629 |
| 2010 | $54,367 | $25,472 | $79,839 | $6,002 |
| 2009 | $54,367 | $25,472 | $79,839 | $5,604 |
| 2008 | $29,860 | $37,810 | $67,670 | $4,977 |
Property facts
Year built
1908
Property type
single_family
Stories
2
Beds
4
Baths
4
Living area
4,091 sqft
Lot size
7,255 sqft
ZIP code
80304
City
Boulder
Street
Maxwell Ave
Coordinates
40.02203, -105.28987
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsInvestment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$21,000
Gross rental yield
7.20%
Implied cap rate
4.68%
Trend-extrapolated value
—
Frequently asked questions
When did 505 Maxwell Ave last sell?
505 Maxwell Ave most recently sold on Mar 30, 2022 for $3,500,000.
What is the current tax assessment for 505 Maxwell Ave?
The most recent total assessment for 505 Maxwell Ave (year 2025) is $151,688 with $14,463 in property tax.
How does 505 Maxwell Ave's assessment compare to its last sale price?
The current assessment is 95.7% below the last sale price of $3,500,000.
When was 505 Maxwell Ave built?
505 Maxwell Ave was built in 1908.
How does 505 Maxwell Ave compare to others on Maxwell Ave?
We track 8 other properties on Maxwell Ave. Browse the list under "Other properties on Maxwell Ave" to compare beds, baths, and sale history.
What are the property facts for 505 Maxwell Ave?
505 Maxwell Ave is a 4 bed, 4 bath, 4,091 sqft, 7,255 sqft lot single_family.
Is 505 Maxwell Ave a flip candidate?
No — 505 Maxwell Ave does not appear in our flips dataset.
Is 505 Maxwell Ave a tax-appeal candidate?
No — 505 Maxwell 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
+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 Maxwell Ave