Opportunity arrives with this new to market home perfectly situated in Boulder, Colorado with immediate access off of Turner Alley and boasts two dedicated parking spots in the rear of the property. Tucked along Marine Street in one of Boulder's most sought-after locations, this 4-bedroom, 3-bath home offers great walkability, proximity to the University of Colorado and long-term investment potential. From the front door, it's an easy stroll to Boulder Creek, Pearl Street/downtown and many of the things that makes living here so special. Just up the street, there is access to Viewpoint Trail which leads to thousands of acres of City/County open space full of wildlife and recreational opportunities. Or, head up into the mountains on the Boulder Creek Path. There are so many options from this location and it's 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. This is a great opportunity to own a home in one of the premier neighborhoods of Boulder. Come and see!
For sale
$1,590,000
623 Marine St, Boulder, CO 80302
4beds
2,659sqft
Est.:
Single Family Residence
Built in 1984
4,322 Square Feet Lot
$-- Zestimate®
$598/sqft
$-- HOA
What's special
- 7 days |
- 884 |
- 14 |
Likely to sell faster than
Zillow last checked: 7 hours ago
Listing updated: March 20, 2026 at 09:49am
Listed by:
Zack Scott 7205262891,
Homestead Real Estate, LLC
Source: IRES as distributed by MLS GRID,MLS#: 1054075
Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Primary bedroom
- Description: Carpet
- Features: Shared Primary Bath, Full Primary Bath
- Level: Upper
- Area: 221 Square Feet
- Dimensions: 13 x 17
Bedroom 2
- Description: Carpet
- Level: Upper
- Area: 204 Square Feet
- Dimensions: 12 x 17
Bedroom 3
- Description: Carpet
- Level: Lower
- Area: 360 Square Feet
- Dimensions: 15 x 24
Bedroom 4
- Description: Carpet
- Level: Lower
- Area: 154 Square Feet
- Dimensions: 11 x 14
Dining room
- Description: Hardwood
- Level: Main
- Area: 195 Square Feet
- Dimensions: 13 x 15
Kitchen
- Description: Hardwood
- Level: Main
- Area: 99 Square Feet
- Dimensions: 9 x 11
Living room
- Description: Hardwood
- Level: Main
- Area: 247 Square Feet
- Dimensions: 13 x 19
Heating
- Hot Water, Baseboard
Appliances
- Included: Gas Range, Dishwasher, Refrigerator, Disposal
- Laundry: Washer/Dryer Hookup
Features
- Separate Dining Room, Open Floorplan, Jack & Jill Bathroom
- Flooring: Wood
- Windows: Window Coverings
- Basement: Full,Partially Finished,Walk-Out Access
- Has fireplace: Yes
- Fireplace features: Living Room
Interior area
- Total structure area: 2,617
- Total interior livable area: 2,659 sqft
- Finished area above ground: 1,696
- Finished area below ground: 921
Property
Parking
- Parking features: None
- Details: None
Accessibility
- Accessibility features: Level Lot, Near Bus
Features
- Levels: Two
- Stories: 2
- Patio & porch: Deck
- Fencing: Fenced,Wood
- Has view: Yes
- View description: Hills
Lot
- Size: 4,322 Square Feet
- Features: Deciduous Trees, Level, City Limits, Paved, Curbs, Gutters, Sidewalks, Street Light, Alley
Details
- Parcel number: R0095516
- Zoning: RMX-1
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Frame, Composition
- Roof: Composition
Condition
- New construction: No
- Year built: 1984
Utilities & green energy
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: Windows
Community & HOA
Community
- Security: Fire Alarm
- Subdivision: Aquamarine
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $598/sqft
- Tax assessed value: $1,548,700
- Annual tax amount: $9,310
- Date on market: 3/18/2026
- Listing terms: Cash,Conventional,VA Loan,1031 Exchange
- Exclusions: Tenants personal property
- Electric utility on property: Yes
- Road surface type: Concrete
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 3/20/2026 | Listed for sale | $1,590,000+188.4%$598/sqft |
Source:  IRES as distributed by MLS GRID #1054075 Report a problem | ||
| 4/6/2012 | Sold | $551,400-5.7%$207/sqft |
Source: IRES as distributed by MLS GRID #669643 Report a problem | ||
| 12/7/2011 | Price change | $585,000-2.1%$220/sqft |
Source: RE/MAX of Boulder #669643 Report a problem | ||
| 9/28/2011 | Price change | $597,420-5%$225/sqft |
Source: Coldwell Banker Residential Brokerage - Boulder #661927 Report a problem | ||
| 9/14/2011 | Price change | $628,600-2.9%$236/sqft |
Source: Coldwell Banker Residential Brokerage - Boulder #661927 Report a problem | ||
| 7/29/2011 | Listed for sale | $647,500-7.2%$244/sqft |
Source: Coldwell Banker Residential Brokerage - Boulder #661927 Report a problem | ||
| 7/3/2010 | Listing removed | $698,000$263/sqft |
Source: RE/MAX Alliance #621005 Report a problem | ||
| 8/16/2009 | Price change | $698,000-2.4%$263/sqft |
Source: RE/MAX Alliance #601374 Report a problem | ||
| 6/9/2009 | Listed for sale | $715,000$269/sqft |
Source: RE/MAX Alliance #601374 Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $8,832 +1.8% | $96,794 -6.3% |
| 2024 | $8,677 +8.9% | $103,287 -1% |
| 2023 | $7,970 +4.8% | $104,289 +22.7% |
| 2022 | $7,604 +8.2% | $85,020 -2.8% |
| 2021 | $7,026 | $87,466 +8.4% |
| 2020 | $7,026 +13.9% | $80,716 |
| 2019 | $6,168 | $80,716 +13.5% |
| 2018 | $6,168 | $71,143 -9.5% |
| 2017 | $6,168 +15.1% | $78,653 +27.1% |
| 2016 | $5,358 +5.6% | $61,897 +41% |
| 2015 | $5,074 +37.5% | $43,891 |
| 2014 | $3,690 +21.4% | $43,891 -18.4% |
| 2013 | $3,041 -17.3% | $53,801 +21.6% |
| 2012 | $3,675 -5.3% | $44,257 |
| 2011 | $3,880 +7.1% | -- |
| 2010 | $3,623 +23.9% | $48,000 |
| 2009 | $2,923 +3.5% | $48,000 -12.5% |
| 2008 | $2,823 +28.1% | $54,840 |
| 2007 | $2,205 -17.9% | $54,840 +25.6% |
| 2006 | $2,686 +7% | $43,650 |
| 2005 | $2,510 +0.7% | $43,650 +6.2% |
| 2004 | $2,492 -0.8% | $41,090 |
| 2003 | $2,512 +10.3% | $41,090 +14.1% |
| 2002 | $2,277 | $36,000 -90.8% |
| 2001 | -- | $393,400 |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$8,858/mo
Principal & interest
$8156
Property taxes
$702
More affordability tools
Climate risks
Neighborhood: Flatirons
Nearby schools
GreatSchools rating
- 6/10Flatirons Elementary SchoolGrades: K-5Distance: 0.3 mi
- 5/10Manhattan Middle School Of The Arts And AcademicsGrades: 6-8Distance: 3.3 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 0.7 mi
Schools provided by the listing agent
- Elementary: Flatirons
- Middle: Manhattan
- 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.
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- 623 Marine St
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