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$1,199,000
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Property Description
Perfectly situated in Boulder, Colorado this home offers a great opportunity. With two dedicated parking spots off of Turner Alley, parking is always available and convenient. Tucked along Marine Street in one of Boulder's most sought-after neighborhoods, home offers great walkability, proximity to the University of Colorado and great investment potential. Boulder is now home to the Sundance Film Festival adding to the many perks and attractive qualities of living here. From the front door, take an easy stroll to Boulder Creek or head downtown to the infamous Pearl Street walking mall to enjoy world class dining, entertainment and night life. Just up the street, is access to Viewpoint Trail which leads to a wild expanse of City/County open space with various types of Front Range wildlife, trails and other recreational opportunities. Take a trip along Boulder creek and into the mountains on the Boulder Creek Path. Among the many options from this location, it's a quick trip up Boulder Canyon to Nederland and Eldora Ski Resort. This property is positioned to enjoy both the outdoors and the energy of downtown living. Step inside and experience a wealth natural light and amazing views of the Flatirons, creating a warm, inspiring and captivating feel throughout. The layout is comfortable and practical, whether you're planning to make it your own down the road or continue its proven use as a rental. The property has been rented successfully for years and is currently leased through July, offering immediate income for the next owner. With 2 bedrooms upstairs and 2 bedrooms on the lower level, the home is spatially beneficial for privacy and a multitude of living situations. Outside, a private fenced yard provides a quiet space to relax or entertain and the elevated deck showcases the beautiful views and proximity to the Flatirons and foothills. The walk out basement provides a separate entrance and the potential for a variety of uses.
Full Property Details
Full Property Details for 623 Marine St
General
- Price: $1,199,000
- Taxes: $9,310 (2025)
- Status: Active
- Type: Single Family
- Source: IRES
- MLS ID: 1054075
- Updated: 4/16/2026
- Added to Site: 56 day(s) ago
Interior
- Interior Features: Separate Dining Room, Open Floorplan, Washer/Dryer Hookup, Jack and Jill Bath
- Fireplace: Yes
- Fireplace(s): Living Room
- Appliances: Gas Range, Dishwasher, Refrigerator, Disposal, Fire Alarm
- Flooring: Wood
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 2
- Half Bathrooms: 1
Bedrooms
- Total Bedrooms: 4
Exterior
- Porch/Patio/Deck: Deck
Parking
- Parking Features: None
- Garage Description: None
Location
- Area: Boulder
- County: Boulder
- Subdivision: Aquamarine
School Information
- School District: Boulder Valley Dist RE2
- Elementary School: Flatirons
- Middle School: Manhattan
- High School: Boulder
Heating & Cooling
- Heating Type: Hot Water, Baseboard
Utilities
- Gas: Yes
- Sewer: Public Sewer
- Water: City
- Utility Description: Natural Gas Available, Electricity Available
Structural Information
- Construction: Frame, Composition
- Exterior Const.: Frame, Composition
- Basement: Yes
- Basement Desc.: Full, Partially Finished, Walk-Out Access
- Roof: Composition
- Windows: Window Coverings
- Square Feet: 2,659
- Sq. Ft. Source: Assessor
- Living Area: 2,659 Sq. Ft.
- Year Built: 1984
Lot Features
- Property View: Hills
- Lot Size (Acres): 0.1
- Lot Size (Sq. Ft.): 4,322
- Frontage: City Street, Alley
- Street/Road Desc.: Concrete
- Fence: Yes
- Lot Features: Deciduous Trees, Level, House Faces West, City Limits, Paved, Curbs, Gutters, Sidewalks, Street Light, Alley
- Potential Use: Single-Family
- Zoning: RMX-1
- Fencing (Description): Fenced, Wood
Green Features
- Energy Efficient: Windows
Financial Considerations
- Tax Amount: $9,310
- Tax Year: 2025
- Terms: Cash, Conventional, VA, 1031 Exchange
Disclosures and Reports
- Special Conditions: Private Owner
- Exclusions: Tenants personal property
- Property ID: R0095516
Listed by Homestead Real Estate, LLC (720) 201-0968
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Schools
Schools serving 623 Marine St
School District:Boulder Valley School District Re-2
| Name | Grades | Distance |
|---|---|---|
Flatirons Elementary School 1150 7th Street, Boulder, CO 80302 | K-5 | 0.3 mi |
Manhattan Middle School Of The Arts And Academics 290 Manhattan Drive, Boulder, CO 80303 | 6-8 | 3.3 mi |
Boulder High School 1604 Arapahoe Avenue, Boulder, CO 80302 | 9-12 | 0.7 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 623 Marine St
Date
Details
Price
Change
Source
4/16/2026
Price Reduced
$1,199,000
-24.59%
MLS
3/20/2026
Listed
$1,590,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 623 Marine St
Year
Property Taxes
Change
Tax Assessment
Change
2025
$9,310
5%
$96,794
-3%
2024
$8,832
2%
$99,602
-4%
2023
$8,677
14%
$103,287
18%
2021
$7,604
-5%
$87,466
3%
2022
$7,970
5%
$85,020
5%
2021
$7,604
23%
$80,716
13%
2018
$6,168
3%
$71,143
—
2017
$5,975
-14%
$71,143
-12%
2019
$6,918
29%
$80,716
30%
2016
$5,358
6%
$61,897
—
2015
$5,074
34%
$61,897
41%
2014
$3,774
2%
$43,891
—
2013
$3,690
—
$43,891
—
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 623 Marine St
623 Marine St, Boulder, CO 80302 (MLS# 1054075) is a Single Family property with 4 bedrooms, 2 full bathrooms and 1 partial bathroom. 623 Marine St is currently listed for $1,199,000 and was received on March 18, 2026. Want to learn more about 623 Marine St? Do you have questions about finding other Single Family real estate for sale in Boulder? You can browse all Boulder real estate or contact a Coldwell Banker agent to request more information.

