1820 Alpine Ave
Boulder, CO 80304
8 bd 4 ba 2,784 sqft Built 1959 Lot 10,109 sqft multi_family
Most recent sale
$1,300,000
May 17, 2019
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Aug 4, 2025 | Sold | $5,085,000 | Public Record |
| Feb 4, 2025 | Sold | $5,085,000 | Public Record |
| Aug 2, 2024 | Listing removed | $2,250,000 | IRES |
| Aug 1, 2024 | Listing removed | $2,166,700 | IRES |
| Aug 29, 2022 | Listed | $2,250,000 | MLS #974331 |
| Jul 28, 2022 | Listed | $2,500,000 | MLS #972123 |
| May 17, 2019 | Sold | $1,300,000 | Public Record |
| Feb 11, 1999 | Sold | $630,000 | Public Record |
| Aug 5, 1983 | Sold | $182,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $35,031 | $63,731 | $98,762 | $9,739 |
| 2024 | $35,031 | $63,731 | $98,762 | $9,139 |
| 2023 | $27,376 | $76,708 | $104,084 | $8,970 |
| 2022 | $39,848 | $42,432 | $82,280 | $7,940 |
| 2021 | $41,899 | $44,616 | $86,515 | $7,746 |
| 2020 | $11,905 | $44,616 | $56,521 | $4,920 |
| 2019 | $11,905 | $44,616 | $56,521 | $3,186 |
Property facts
Year built
1959
Property type
multi_family
Stories
—
Beds
8
Baths
4
Living area
2,784 sqft
Lot size
10,109 sqft
ZIP code
80304
City
Boulder
Street
Alpine Ave
Coordinates
40.02525, -105.27359
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 1820 Alpine Ave last sell?
1820 Alpine Ave most recently sold on May 17, 2019 for $1,300,000.
What is the current tax assessment for 1820 Alpine Ave?
The most recent total assessment for 1820 Alpine Ave (year 2025) is $98,762 with $9,739 in property tax.
How does 1820 Alpine Ave's assessment compare to its last sale price?
The current assessment is 92.4% below the last sale price of $1,300,000.
When was 1820 Alpine Ave built?
1820 Alpine Ave was built in 1959.
How does 1820 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 1820 Alpine Ave?
1820 Alpine Ave is a 8 bed, 4 bath, 2,784 sqft, 10,109 sqft lot multi_family.
Is 1820 Alpine Ave a flip candidate?
No — 1820 Alpine Ave does not appear in our flips dataset.
Is 1820 Alpine Ave a tax-appeal candidate?
No — 1820 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
+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 Alpine Ave