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623 Marine StreetBoulder, CO 80302

For Sale

$1,199,000

Smart Buyer Rebate $11,990

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.

Listed by Zack Scott

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License #IRP17462

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Homestead Real Estate, LLC

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720-526-2891

Last updated April 16, 2026

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Source: REcolorado #IR1054075

Listing Facts

  • TypeSingle-family
  • NeighborhoodFlatirons
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu43
  • Taxes$9,310/year
  • Size2,659 sqft
  • Price per sqft$451

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Parking

Location

Mortgage Calculator

Listing History

04/16/2026
Price Decreased
$1,199,000
03/20/2026
Status changed to Active
$1,590,000
03/18/2026
Listed by Homestead Real Estate, LLC
$1,590,000

Property Details for 623 Marine Street

Exterior

Construction

  • Roof: Composition
  • Structure Type: House
  • Window Features: Double Pane Windows, Window Coverings
  • Year Built: 1984
  • Construction Materials: Frame

Features

  • Direction Faces: West
  • Fencing: Fenced
  • Patio And Porch Features: Deck
  • Road Frontage Type: Public
  • View: Mountain(s)

Measurements

  • Building Area Total: 2,659
  • Lot Features: Level
  • Lot Size Acres: 0.10
  • Lot Size Square Feet: 4,322

Financial

Taxes

  • Parcel Number: R0095516
  • Tax Annual Amount: $9,310.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Disposal, Oven, Refrigerator
  • Fireplace Features: Living Room
  • Flooring: Wood
  • Interior Features: Jack & Jill Bathroom, Open Floorplan

Measurements

  • Living Area: 2,659

Rooms

  • Basement: Full, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 2
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4
  • Main Level Bathrooms: 1

Other

General

  • Exclusions: Tenants personal property

Location

  • Subdivision Name: Aquamarine

Schools

Elementary School

  • Elementary School: Flatirons
  • Elementary School District: Boulder Valley RE 2

High School

  • High School: Boulder
  • High School District: Boulder Valley RE 2

Middle or Junior School

  • Middle Or Junior School: Manhattan

Utilities

Equipment

  • Heating: Baseboard, Hot Water
  • Laundry Features: In Unit
  • Sewer: Public Sewer
  • Utilities: Electricity Available, Natural Gas Available
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 3 bathrooms in this single-family home at 623 Marine Street.

What schools are nearby to 623 Marine Street?

Nearby schools include the Flatirons Elementary School, Manhattan Middle School, and Boulder High School.

What are the annual taxes for 623 Marine Street?

Annual taxes for this single-family home are estimated at $9,310.

How does 623 Marine Street compare to other single-family homes in Flatirons?

This single-family home is listed 34% below the average price for single-family homes in Flatirons and has been on the market for 51 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 2,659 sqft.

623 Marine Street is a 4-bedroom, 3-bath single-family home for sale in Boulder CO 80302. On Prevu for 43 days at $1,199,000. This includes a recent price decrease of $391,000. This home features 2,659 square feet of living space, located in Flatirons. The median listing price for single-family homes in this area is $2,749,500. Nearby schools include Flatirons Elementary School, Manhattan Middle School, and Boulder High School. The home offers private outdoor space, dishwasher, and parking. Browse more single-family home listings in Boulder.

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.