4240 Grinnell Ave
Boulder, CO 80305
5 bd 3 ba 2,980 sqft Built 1965 Lot 7,251 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 | $33,450 | $58,963 | $92,413 | $8,811 |
| 2024 | $33,450 | $58,963 | $92,413 | $8,742 |
| 2023 | $36,100 | $67,060 | $103,160 | $8,590 |
| 2022 | $29,280 | $49,637 | $78,917 | $7,328 |
| 2021 | $30,123 | $51,065 | $81,188 | $6,988 |
| 2020 | $31,532 | $43,544 | $75,076 | $6,535 |
| 2019 | $31,532 | $43,544 | $75,076 | $6,434 |
| 2018 | $26,071 | $30,744 | $56,815 | $4,925 |
| 2017 | $26,071 | $30,744 | $56,815 | $4,771 |
| 2016 | $24,254 | $24,756 | $49,010 | $4,242 |
| 2015 | $24,254 | $24,756 | $49,010 | $4,017 |
| 2014 | $22,025 | $18,149 | $40,174 | $3,454 |
| 2013 | $22,025 | $18,149 | $40,174 | $3,377 |
| 2011 | $26,507 | $16,159 | $42,666 | $3,542 |
| 2010 | $26,507 | $16,159 | $42,666 | $3,664 |
| 2009 | $26,507 | $16,159 | $42,666 | $3,421 |
| 2008 | $19,300 | $22,290 | $41,590 | $3,058 |
Property facts
Year built
1965
Property type
single_family
Stories
—
Beds
5
Baths
3
Living area
2,980 sqft
Lot size
7,251 sqft
ZIP code
80305
City
Boulder
Street
Grinnell Ave
Coordinates
39.97660, -105.24716
Comparable properties nearby
Frequently asked questions
When did 4240 Grinnell Ave last sell?
No public-record sale is on file for 4240 Grinnell Ave.
What is the current tax assessment for 4240 Grinnell Ave?
The most recent total assessment for 4240 Grinnell Ave (year 2025) is $92,413 with $8,811 in property tax.
When was 4240 Grinnell Ave built?
4240 Grinnell Ave was built in 1965.
How does 4240 Grinnell Ave compare to others on Grinnell Ave?
We track 3 other properties on Grinnell Ave. Browse the list under "Other properties on Grinnell Ave" to compare beds, baths, and sale history.
What are the property facts for 4240 Grinnell Ave?
4240 Grinnell Ave is a 5 bed, 3 bath, 2,980 sqft, 7,251 sqft lot single_family.
Is 4240 Grinnell Ave a flip candidate?
No — 4240 Grinnell Ave does not appear in our flips dataset.
Is 4240 Grinnell Ave a tax-appeal candidate?
No — 4240 Grinnell 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
-0.2%
Implied 1-yr
-0.8%
2026 Q3
$1.2M
2026 Q4
$1.2M
ZIP 80305 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Grinnell Ave