Date
Details
Price
Change
Source
7/01/2020
Sold
$240,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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1/19
$499,999
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1/19
Property Description
Fully remodeled half-duplex with a light-filled open floor plan and upgraded finishes throughout. In addition to full cosmetic overhaul, other improvements include new windows, roof, electrical, and mechanical systems. Enjoy mountain views from multiple rooms and a spacious deck off the primary bedroom. The private yard backs directly to open space and the Boulder County trail system. A full unfinished basement with bathroom plumbing rough-in offers excellent potential for expansion. Attached covered two-car carport. Located in a quiet community with low HOA, in unincorporated Boulder County and just a quick 10-minute commute to central Boulder.
Full Property Details
Full Property Details for 4645 Portside Way
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General
- Price: $499,999
- HOA FEE: $33/month
- HOA FEE FREQ.: Annually
- Taxes: $2,525 (2025)
- Status: Active
- Type: Duplex
- Source: MetroList_Colorado
- MLS ID: 6750570
- Updated: 4/23/2026
- Added to Site: 40 day(s) ago
Interior
- Interior Features: Ceiling Fan(s), Eat-in Kitchen, Smart Thermostat, Smoke Free, Stone Counters
- Appliances: Convection Oven, Dishwasher, Disposal, Microwave, Oven, Range, Refrigerator, Self Cleaning Oven
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 1
- 1/4 Bathrooms: 1
- Main Floor Baths: 1
Bedrooms
- Total Bedrooms: 2
Other Rooms
- Laundry: In Unit
Additional Information
- Security/Safety: Carbon Monoxide Detector(s), Smoke Detector(s)
Exterior
- Exterior Features: Balcony, Private Yard
- Porch/Patio/Deck: Patio
Parking
- Carports: Yes
- Carport Spaces: 2
- Total Spaces: 2
Location
- County: Boulder
- Subdivision: Portal Estates
School Information
- Elem School District: Boulder Valley RE 2
- Midd School District: Boulder Valley RE 2
- High School District: Boulder Valley RE 2
- Elementary School: Heatherwood
- Middle School: Platt
- High School: Boulder
Community
- Association: Yes
- Assoc. Name: Twin Lakes HOA
- Assoc. Fees Include: Maintenance Grounds, Snow Removal, Trash
- Pets Allowed: Yes
- Management Type: Professionally Managed
Heating & Cooling
- Cooling Type: None
- Heating Type: Forced Air
Utilities
- Sewer: Public Sewer
- Water: Public
Structural Information
- Architectural Style: Contemporary
- Structure Type: Duplex
- Construction: Frame, Wood Siding
- Basement: Yes
- Basement Desc.: Full, Unfinished
- Roof: Composition
- Common Walls: 1 Common Wall
- Square Feet: 1,536
- Sq. Ft. Source: Public Records
- Living Area: 1,024 Sq. Ft.
- Year Built: 1980
- Property Condition: Updated/Remodeled
Lot Features
- Property View: Mountain(s)
- Mountain views: Yes
- Lot Size (Acres): 0.04
- Lot Size (Sq. Ft.): 1,942
- Fence: Yes
- Lot Features: Greenbelt, Open Space
- Zoning: SR
- Fencing (Description): Partial
Financial Considerations
- Association Fee: Yes
- Association Fee: $390
- Assoc Fee Freq.: Annually
- Assoc Fee /Annual: $391
- Other Assoc Fees: $90
- Other Fee Freq.: Monthly
- Tax Amount: $2,525
- Tax Year: 2025
- Terms: 1031 Exchange, Cash, Conventional, FHA, VA Loan
Disclosures and Reports
- Ownership: Corporation/Trust
- Special Conditions: None
- Documents Avail.: Plans, Building Plans, Condo Docs Available, HOA Docs Available, Legal Description, Survey
- Legal Description: LOT 11 PORTAL ESTATES
- Exclusions: none
- Property ID: R0083999
Listed by Posh Realty
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Listing agent
— 4645 Portside Way —
Posh Realty
303-908-9117
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Schools
Schools serving 4645 Portside Way
School District:Boulder Valley School District Re-2
| Name | Grades | Distance |
|---|---|---|
Heatherwood Elementary School 7750 Concord Drive, Boulder, CO 80301 | PK-5 | 1.5 mi |
Nevin Platt Middle School 6096 Baseline Road, Boulder, CO 80303 | 6-8 | 3.9 mi |
Boulder High School 1604 Arapahoe Avenue, Boulder, CO 80302 | 9-12 | 4.9 mi |
Fairview High School 1515 Greenbriar Boulevard, Boulder, CO 80305 | 9-12 | 6.4 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 4645 Portside Way
Tax History
Tax History for 4645 Portside Way
Year
Property Taxes
Change
Tax Assessment
Change
2024
$2,150
—
$24,906
8%
2024
$2,150
2%
$23,015
-14%
2023
$2,115
-10%
$26,700
4%
2021
$2,350
-5%
$25,790
3%
2022
$2,464
5%
$25,069
-1%
2021
$2,350
14%
$25,390
13%
2018
$2,055
3%
$22,385
—
2017
$1,994
27%
$22,385
32%
2016
$1,566
5%
$16,995
—
2015
$1,488
8%
$16,995
8%
2014
$1,378
-40%
$15,705
-38%
2019
$2,302
51%
$25,390
62%
2013
$1,522
—
$15,705
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 4645 Portside Way
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4645 Portside Way, Boulder, CO 80301 (MLS# 6750570) is a Duplex property with 2 bedrooms, 1 full bathroom and 1 partial bathroom. 4645 Portside Way is currently listed for $499,999 and was received on April 13, 2026. Want to learn more about 4645 Portside Way? Do you have questions about finding other Duplex real estate for sale in Boulder? You can browse all Boulder real estate or contact a Coldwell Banker agent to request more information.