6495 Barnacle Ct Boulder, CO 80301
Gunbarrel NeighborhoodEstimated payment $5,028/month
Highlights
- Traditional Architecture
- Quartz Countertops
- Eat-In Kitchen
- Heatherwood Elementary School Rated A-
- Private Yard
- Patio
About This Home
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. Projected 5%+ CAP rate after upgrades. A property that blends Boulder lifestyle, privacy, and investment potential — a combination that rarely becomes available.
Listing Agent
Posh Realty Brokerage Email: Marina@PoshRealtyDenver.com,303-908-9117 License #100033701 Listed on: 10/17/2025
Property Details
Home Type
- Multi-Family
Est. Annual Taxes
- $2,886
Year Built
- Built in 1978
Lot Details
- 3,484 Sq Ft Lot
- 1 Common Wall
- South Facing Home
- Partially Fenced Property
- Private Yard
HOA Fees
Home Design
- Duplex
- Traditional Architecture
- Slab Foundation
- Frame Construction
- Composition Roof
Interior Spaces
- 2-Story Property
- Carbon Monoxide Detectors
Kitchen
- Eat-In Kitchen
- Self-Cleaning Oven
- Range
- Microwave
- Dishwasher
- Quartz Countertops
- Disposal
Flooring
- Carpet
- Laminate
- Tile
Bedrooms and Bathrooms
- 4 Bedrooms
- 4 Bathrooms
Unfinished Basement
- Basement Fills Entire Space Under The House
- Sump Pump
Parking
- 4 Parking Spaces
- 2 Carport Spaces
- Paved Parking
Outdoor Features
- Patio
- Exterior Lighting
- Rain Gutters
Schools
- Heatherwood Elementary School
- Platt Middle School
- Boulder High School
Utilities
- No Cooling
- Forced Air Heating System
- Gas Water Heater
Community Details
- Association fees include ground maintenance, trash
- Portal Village Association, Phone Number (303) 530-0700
- Twin Lakes HOA, Phone Number (303) 457-1444
- Portal Village Subdivision
- Greenbelt
Listing and Financial Details
- Property held in a trust
- Assessor Parcel Number R0039089
Map
Home Values in the Area
Average Home Value in this Area
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $2,742 | $31,375 | $15,375 | $16,000 |
| 2024 | $2,742 | $29,949 | $16,482 | $13,467 |
| 2023 | $2,742 | $29,949 | $16,482 | $17,152 |
| 2022 | $3,225 | $32,919 | $12,247 | $20,672 |
| 2021 | $3,143 | $34,613 | $12,877 | $21,736 |
| 2020 | $3,296 | $35,929 | $11,154 | $24,775 |
| 2019 | $3,245 | $35,929 | $11,154 | $24,775 |
| 2018 | $2,602 | $28,433 | $9,360 | $19,073 |
| 2017 | $2,525 | $31,434 | $10,348 | $21,086 |
| 2016 | $2,767 | $30,287 | $7,880 | $22,407 |
| 2015 | $2,628 | $22,288 | $6,766 | $15,522 |
| 2014 | $2,089 | $22,288 | $6,766 | $15,522 |
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 01/16/2026 01/16/26 | Price Changed | $899,999 | -5.3% | $439 / Sq Ft |
| 11/04/2025 11/04/25 | Price Changed | $949,999 | -2.6% | $464 / Sq Ft |
| 10/17/2025 10/17/25 | For Sale | $975,000 | -- | $476 / Sq Ft |
Source: REcolorado®
MLS Number: 2578277
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