Fantastic opportunity to own a beautiful 2 bedroom/2 bathroom duplex on a quiet cul-de-sac in unincorporated Boulder County! Easy walking and bike access to Twin Lakes open space. Walk to Avery Brewing, twin lakes, and Boulder County trails. Brand new interior paint. Enjoy the open views from the large second floor deck. 2 bedrooms upstairs w/ a full bath and an extra large deck off primary bedroom. Wood burning fireplace and secluded patio and back yard area. Washer/dryer and plenty of storage space in the basement. Attached 2 car carport. Easy access to Diagonal Highway, downtown Boulder (10 mins) & Longmont (10 mins). End unit, no neighbors to the east!
Accepting backups
$439,900
4690 Portside Way, Boulder, CO 80301
2beds
1,536sqft
Est.:
Condominium
Built in 1980
-- sqft lot
$-- Zestimate®
$286/sqft
$123/mo HOA
What's special
- 24 days |
- 1,641 |
- 42 |
Zillow last checked: 7 hours ago
Listing updated: April 09, 2026 at 05:31am
Listed by:
Andy Hawk 3036410695,
Folsom & Co. Real Estate
Source: IRES as distributed by MLS GRID,MLS#: 1054188
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 2
- Full bathrooms: 1
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Primary bedroom
- Description: Carpet
- Features: Shared Primary Bath
- Level: Upper
- Area: 195 Square Feet
- Dimensions: 15 x 13
Bedroom 2
- Description: Carpet
- Level: Upper
- Area: 150 Square Feet
- Dimensions: 15 x 10
Kitchen
- Description: Vinyl
- Level: Main
- Area: 150 Square Feet
- Dimensions: 15 x 10
Laundry
- Description: Concrete
- Level: Basement
- Area: 120 Square Feet
- Dimensions: 12 x 10
Heating
- Forced Air
Appliances
- Included: Electric Range, Dishwasher, Refrigerator, Washer, Dryer
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen
- Windows: Window Coverings
- Basement: Unfinished
- Has fireplace: Yes
- Fireplace features: Living Room
Interior area
- Total structure area: 1,536
- Total interior livable area: 1,536 sqft
- Finished area above ground: 1,024
- Finished area below ground: 512
Property
Parking
- Total spaces: 2
- Parking features: Carport
- Garage spaces: 2
- Has carport: Yes
- Details: Carport
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio, Deck
- Exterior features: Private Yard
- Fencing: Fenced
- Has view: Yes
- View description: Hills, Plains View
- Waterfront features: Abuts Pond/Lake
Lot
- Size: 2,106 Square Feet
- Features: Cul-De-Sac, Corner Lot, Native Plants, Level, Unincorporated, Paved, Curbs, Sidewalks
Details
- Parcel number: R0084008
- Zoning: SR
- Special conditions: Private Owner
Construction
Type & style
- Home type: Condo
- Property subtype: Condominium
- Attached to another structure: Yes
Materials
- Frame
- Roof: Composition
Condition
- New construction: No
- Year built: 1980
Utilities & green energy
- Electric: Xcel
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available, Cable Available, Satellite Avail, High Speed Avail
Community & HOA
Community
- Features: Park, Trail(s)
- Subdivision: Portal Estates
HOA
- Has HOA: Yes
- Services included: Common Amenities, Trash, Snow Removal, Management
- HOA fee: $391 annually
- HOA name: Homestead Management
- HOA phone: 303-457-1444
- Second HOA fee: $90 monthly
- Second HOA name: Trio Property Management
- Second HOA phone: 983-207-5231
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $286/sqft
- Tax assessed value: $418,600
- Annual tax amount: $2,650
- Date on market: 3/19/2026
- Listing terms: Cash,Conventional,FHA,VA Loan
- Exclusions: Seller's personal property
- Electric utility on property: Yes
- Road surface type: Asphalt
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 4/9/2026 | Pending sale | $439,900$286/sqft |
Source:  REcolorado as distributed by MLS GRID #IR1054188 Report a problem | ||
| 3/25/2026 | Listed for sale | $439,900+29.4%$286/sqft |
Source:  IRES as distributed by MLS GRID #1054188 Report a problem | ||
| 6/19/2020 | Sold | $340,000$221/sqft |
Source: Public Record Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $2,483 +1.7% | $26,163 -13.7% |
| 2024 | $2,443 -1.2% | $30,325 -1% |
| 2023 | $2,471 +4.8% | $30,619 +21.8% |
| 2022 | $2,357 +1.9% | $25,145 -2.8% |
| 2021 | $2,312 | $25,868 +3.1% |
| 2020 | $2,312 +11.6% | $25,097 |
| 2019 | $2,072 | $25,097 +11.2% |
| 2018 | $2,072 | $22,572 -9.5% |
| 2017 | $2,072 +31.6% | $24,954 +46% |
| 2016 | $1,575 +5.2% | $17,090 +9.9% |
| 2015 | $1,496 -0.8% | $15,546 |
| 2014 | $1,508 +10.4% | $15,546 |
| 2013 | $1,367 +1.1% | $15,546 -2.8% |
| 2012 | $1,352 -2.5% | $16,000 |
| 2011 | $1,386 +5.8% | -- |
| 2010 | $1,311 +7.2% | $16,630 |
| 2009 | $1,223 +2.5% | $16,630 -9.1% |
| 2008 | $1,193 +6.9% | $18,300 |
| 2007 | $1,116 +8.5% | $18,300 +9.6% |
| 2006 | $1,029 +5.3% | $16,700 |
| 2005 | $978 +0.5% | $16,700 +10.4% |
| 2004 | $973 -2.6% | $15,120 |
| 2003 | $999 +9% | $15,120 +11.7% |
| 2002 | $916 | $13,540 -90.9% |
| 2001 | -- | $148,000 |
Find assessor info on the county website
Monthly payment
Est. payment
$2,486/mo
Principal & interest
$2169
Property taxes
$194
HOA Fees
$123
More affordability tools
Climate risks
Neighborhood: Gunbarrel
Getting around
25 / 100
Some TransitNearby schools
GreatSchools rating
- 7/10Heatherwood Elementary SchoolGrades: PK-5Distance: 1.5 mi
- 6/10Nevin Platt Middle SchoolGrades: 6-8Distance: 3.9 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 5 mi
Schools provided by the listing agent
- Elementary: Heatherwood
- Middle: Platt
- High: Boulder
Source: IRES 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.
Local experts in 80301
- Colorado
- Boulder County
- Boulder
- 80301
- Gunbarrel
- 4690 Portside Way
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