A rare Boulder opportunity — own an entire side-by-side duplex in unincorporated Boulder County, just 10 minutes from downtown Boulder and CU.
Each unit backs directly to open space and the trail system, with private yards, covered parking, and separate utilities for true independence.
One side has been fully renovated with new furnace, water heater, windows, and premium finishes throughout the entire unit. The other side offers a clean canvas ready for your custom updates or value-add improvements. New roof and all new windows throughout the entire building.
Both units are vacant, providing maximum flexibility — live in one and rent the other, lease both, or expand by finishing each basement to create 3 bed / 3 bath layouts.
A property that blends Boulder lifestyle, privacy, and investment potential — a combination that rarely becomes available.
Sold for $875,000
Zestimate®
$875,000
6495 Barnacle Court, Boulder, CO 80301
4beds
4baths
3,192sqft
Duplex
Built in 1978
-- sqft lot
$875,000 Zestimate®
$274/sqft
$2,435 Estimated rent
Home value
$875,000
$831,000 - $928,000
$2,435/mo
Zestimate® history
Owner options
List your home for rent
$2,435/mo
Rent Zestimate®
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$2,435/mo
Rent Zestimate®
Refinance and save
$5,145/mo
Est. payment
Refinancing to a lower rate could help reduce your monthly payments and save thousands over the life of the loan.
$5,145/mo
Est. payment
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List your homeWhat's special
Zillow last checked:
Listing updated:
Listed by:
Marina Jensen 303-908-9117 Marina@PoshRealtyDenver.com,
Posh Realty
Bought with:
Marilee Thomson, 100013341
Home Real Estate
Source: REcolorado as distributed by MLS GRID,MLS#: 2578277
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
Heating
- Forced Air
Cooling
- None
Appliances
- Included: Dishwasher, Disposal, Gas Water Heater, Microwave, Oven, Range, Refrigerator, Self Cleaning Oven
Features
- Eat-in Kitchen, Pantry, Quartz Counters, Solid Surface Counters
- Flooring: Carpet, Laminate, Tile
- Basement: Full,Sump Pump,Unfinished
- Common walls with other units/homes: 1 Common Wall
Interior area
- Total structure area: 3,192
- Total interior livable area: 3,192 sqft
- Finished area above ground: 2,048
- Finished area below ground: 0
Property
Parking
- Total spaces: 4
- Parking features: Concrete
- Carport spaces: 2
- Details: Off Street Spaces: 2
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio
- Exterior features: Lighting, Private Yard, Rain Gutters
- Fencing: Partial
Lot
- Size: 3,484 sqft
- Features: Greenbelt
Details
- Parcel number: R0039089
- Special conditions: Standard
Construction
Type & style
- Home type: MultiFamily
- Architectural style: Traditional
- Property subtype: Duplex
- Attached to another structure: Yes
Materials
- Frame
- Foundation: Slab
- Roof: Composition
Condition
- Year built: 1978
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & neighborhood
Security
- Security features: Carbon Monoxide Detector(s)
Location
- Region: Boulder
- Subdivision: Portal Village
HOA & financial
HOA
- Has HOA: Yes
- HOA fee: $80 monthly
- Services included: Maintenance Grounds, Trash
- Association name: Portal Village
- Association phone: 303-530-0700
- Second HOA fee: $398 annually
- Second association name: Twin Lakes HOA
- Second association phone: 303-457-1444
Other
Other facts
- Listing terms: Cash,Conventional,Jumbo,Other
- Ownership: Corporation/Trust
Price history
| Date | Event | Price |
|---|---|---|
| 6/4/2026 | Listing removed | $2,900$1/sqft |
Source: Zillow Rentals Report a problem | ||
| 5/24/2026 | Listed for rent | $2,900$1/sqft |
Source: Zillow Rentals Report a problem | ||
| 5/19/2026 | Sold | $875,000-2.8%$274/sqft |
Source:  REcolorado as distributed by MLS GRID #2578277 Report a problem | ||
| 3/23/2026 | Pending sale | $899,999$282/sqft |
Source: REcolorado as distributed by MLS GRID #2578277 Report a problem | ||
| 1/16/2026 | Price change | $899,999-5.3%$282/sqft |
Source: REcolorado as distributed by MLS GRID #2578277 Report a problem | ||
| 11/4/2025 | Price change | $949,999-2.6%$298/sqft |
Source: REcolorado as distributed by MLS GRID #2578277 Report a problem | ||
| 10/17/2025 | Listed for sale | $975,000$305/sqft |
Source: REcolorado as distributed by MLS GRID #2578277 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $2,788 +1.7% | $31,375 -8.1% |
| 2024 | $2,742 -15% | $34,136 -25.1% |
| 2023 | $3,225 +2.6% | $45,562 +38.4% |
| 2022 | $3,143 -4.6% | $32,919 -4.9% |
| 2021 | $3,296 | $34,613 -3.7% |
| 2020 | $3,296 +26.7% | $35,929 |
| 2019 | $2,602 | $35,929 +26.4% |
| 2018 | $2,602 | $28,433 -9.5% |
| 2017 | $2,602 -6% | $31,434 +3.8% |
| 2016 | $2,767 +5.3% | $30,287 +35.9% |
| 2015 | $2,628 +25.8% | $22,288 |
| 2014 | $2,089 -13.8% | $22,288 |
| 2013 | $2,424 +1% | $22,288 -22.2% |
| 2012 | $2,400 +9.5% | $28,656 |
| 2011 | $2,191 +5.9% | -- |
| 2010 | $2,068 +12.6% | $26,470 |
| 2009 | $1,837 +2.5% | $26,470 -4.3% |
| 2008 | $1,792 +3% | $27,650 |
| 2007 | $1,740 +8.8% | $27,650 +5.5% |
| 2006 | $1,599 +4.1% | $26,220 -8.3% |
| 2005 | $1,535 +0.5% | $28,590 +19.1% |
| 2004 | $1,528 +5.7% | $24,010 |
| 2003 | $1,446 +9% | $24,010 +21.4% |
| 2002 | $1,327 | $19,770 -90.9% |
| 2001 | -- | $216,100 |
Find assessor info on the county website
Neighborhood: Gunbarrel
Nearby schools
GreatSchools rating
- 7/10Heatherwood Elementary SchoolGrades: PK-5Distance: 1.6 mi
- 6/10Nevin Platt Middle SchoolGrades: 6-8Distance: 3.9 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 5.1 mi
Schools provided by the listing agent
- Elementary: Heatherwood
- Middle: Platt
- High: Boulder
- District: Boulder Valley RE 2
Source: REcolorado as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$875,000
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$875,000
- Colorado
- Boulder County
- Boulder
- 80301
- Gunbarrel
- 6495 Barnacle Court
Nearby cities
Nearby neighborhoods
Nearby zip codes
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