3978 Promontory Ct
Boulder, CO 80304
4 bd 4 ba 3,148 sqft Built 1984 Lot 5,887 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 | $58,375 | $64,081 | $122,456 | $11,676 |
| 2024 | $58,375 | $64,081 | $122,456 | $11,929 |
| 2023 | $69,921 | $69,506 | $139,427 | $11,722 |
| 2022 | $45,940 | $54,995 | $100,935 | $9,373 |
| 2021 | $47,262 | $56,578 | $103,840 | $8,938 |
| 2020 | $54,412 | $40,612 | $95,024 | $8,271 |
| 2019 | $54,412 | $40,612 | $95,024 | $8,144 |
| 2018 | $62,978 | $41,976 | $104,954 | $9,099 |
| 2017 | $62,978 | $41,976 | $104,954 | $8,814 |
| 2016 | $53,332 | $39,004 | $92,336 | $7,993 |
| 2015 | $53,332 | $39,004 | $92,336 | $7,568 |
| 2014 | $50,546 | $28,974 | $79,520 | $6,836 |
| 2013 | $50,546 | $28,974 | $79,520 | $6,686 |
| 2011 | $47,760 | $23,641 | $71,401 | $5,928 |
| 2010 | $47,760 | $23,641 | $71,401 | $5,863 |
| 2009 | $60,257 | $20,218 | $80,475 | $5,475 |
| 2008 | $28,480 | $34,830 | $63,310 | $4,656 |
Property facts
Year built
1984
Property type
single_family
Stories
—
Beds
4
Baths
4
Living area
3,148 sqft
Lot size
5,887 sqft
ZIP code
80304
City
Boulder
Street
Promontory Ct
Coordinates
40.04775, -105.29265
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 3978 Promontory Ct last sell?
No public-record sale is on file for 3978 Promontory Ct.
What is the current tax assessment for 3978 Promontory Ct?
The most recent total assessment for 3978 Promontory Ct (year 2025) is $122,456 with $11,676 in property tax.
When was 3978 Promontory Ct built?
3978 Promontory Ct was built in 1984.
How does 3978 Promontory Ct compare to others on Promontory Ct?
We track 8 other properties on Promontory Ct. Browse the list under "Other properties on Promontory Ct" to compare beds, baths, and sale history.
What are the property facts for 3978 Promontory Ct?
3978 Promontory Ct is a 4 bed, 4 bath, 3,148 sqft, 5,887 sqft lot single_family.
Is 3978 Promontory Ct a flip candidate?
No — 3978 Promontory Ct does not appear in our flips dataset.
Is 3978 Promontory Ct a tax-appeal candidate?
No — 3978 Promontory Ct 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
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