635 Alpine Ave
Boulder, CO 80304
3 bd 2 ba 1,906 sqft Built 1909 Lot 8,414 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 | $8,800 | $79,200 | $88,000 | $8,552 |
| 2024 | $8,800 | $79,200 | $88,000 | $8,558 |
| 2023 | $10,107 | $90,963 | $101,070 | $8,410 |
| 2022 | $7,418 | $66,763 | $74,181 | $6,888 |
| 2021 | $7,800 | $70,199 | $77,999 | $6,863 |
| 2020 | $14,021 | $56,128 | $70,149 | $6,106 |
| 2019 | $14,021 | $56,128 | $70,149 | $6,012 |
| 2018 | $11,966 | $47,880 | $59,846 | $5,188 |
| 2017 | $11,966 | $47,880 | $59,846 | $5,026 |
| 2016 | $12,505 | $48,158 | $60,663 | $5,251 |
| 2015 | $12,505 | $48,158 | $60,663 | $4,972 |
| 2014 | $27,327 | $21,014 | $48,341 | $4,156 |
| 2013 | $27,327 | $21,014 | $48,341 | $4,064 |
| 2011 | $13,771 | $34,228 | $47,999 | $3,985 |
| 2010 | $13,771 | $34,228 | $47,999 | $4,320 |
| 2009 | $13,771 | $34,228 | $47,999 | $4,033 |
| 2008 | $11,840 | $33,830 | $45,670 | $3,359 |
Property facts
Year built
1909
Property type
single_family
Stories
2
Beds
3
Baths
2
Living area
1,906 sqft
Lot size
8,414 sqft
ZIP code
80304
City
Boulder
Street
Alpine Ave
Coordinates
40.02579, -105.28751
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 635 Alpine Ave last sell?
No public-record sale is on file for 635 Alpine Ave.
What is the current tax assessment for 635 Alpine Ave?
The most recent total assessment for 635 Alpine Ave (year 2025) is $88,000 with $8,552 in property tax.
When was 635 Alpine Ave built?
635 Alpine Ave was built in 1909.
How does 635 Alpine Ave compare to others on Alpine Ave?
We track 8 other properties on Alpine Ave. Browse the list under "Other properties on Alpine Ave" to compare beds, baths, and sale history.
What are the property facts for 635 Alpine Ave?
635 Alpine Ave is a 3 bed, 2 bath, 1,906 sqft, 8,414 sqft lot single_family.
Is 635 Alpine Ave a flip candidate?
No — 635 Alpine Ave does not appear in our flips dataset.
Is 635 Alpine Ave a tax-appeal candidate?
No — 635 Alpine 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 Alpine Ave