623 Marine Street Boulder, CO ^$ 1,199,000

623 Marine Street

^$ 1,199,000

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623 Marine Street

Boulder, CO, 80302

^$ 1,199,000

Bedrooms4 Baths2.1 Sq 2,659

Monthly Estimate*

^$ 7,382

Listed by Homestead Real Estate, LLC

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Single Family Home for sale in Boulder, CO

for $1,199,000 with 4 bedrooms and 2 full baths, 1 half bath. This 2,659 square foot home was built in 1984 on a lot size of 0.1.

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.

Single Family Active

Price

^$ 1,199,000

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 9,310

Style

House

Lot Size

0.1

Year Built

1984

Town/City

Boulder

County/Region

Boulder

MLS | Web ID

IR1054075

Features

Interior

Interior Amenities Jack & Jill Bathroom Open Floorplan

Basement Full Walk-Out Access

Flooring Wood

Fireplace Features Living Room

Basement (Y/N) Y

Window Features Double Pane Windows Window Coverings

Above Grade Finished Area 1696

Half Baths 1

3/4 Baths 0

Laundry Features In Unit

Total Bedrooms 4

Below Grade Finished Area 963

Main Level Bedrooms 0

Main Level Bathrooms 1

Total Baths 3

General

Sewer Public Sewer

Heating Baseboard Hot Water

Utilities Electricity Available Natural Gas Available

Possession Rental Agreement

Roof Composition

Appliances Dishwasher Disposal Oven Refrigerator

Zoning RMX-1

Patio/Porch Features Deck

Security Features Smoke Detector(s)

Construction Materials Frame

Exclusions Tenants personal property

Year Built 1984

View Mountain(s)

Levels Two

Property Subtype Single Family Residence

Tax Year 2025

Ownership Individual

County Boulder

Property Type Residential

HOA N

Subdivision Name Aquamarine

Facing Direction West

Possible Use Residential

Full Baths 2

Status Active

High School Boulder

City Boulder

High School District Boulder Valley RE 2

Lot Size Square Feet 4322

Listing Terms 1031 Exchange Cash Conventional VA Loan

Elementary School Flatirons

Tax Annual Amount 9310

Middle/Junior High School Manhattan

Concessions No

Structure Type House

Standard Status Active

Occupancy Type Tenant

Elementary School District Boulder Valley RE 2

Exterior

Vegetation Wooded

Fencing Fenced

Lot Features Level

Water Source Public

Total Parking 0

Building Area Total 2659

Lot Size Acres 0.1

Road Surface Type Alley Paved Paved

Road Frontage Type Public

Internal Only

Street Number 1 623

* Excluded Features

List By

Homestead Real Estate, Llc

Broker

(720) 526-2891

Phone

Affordability Calculator

$8,158

Per Month

Monthly Principal & Interest: $7,382
Monthly Property Taxes: $776
Monthly Home Insurance: --

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Down Payment

Loan Term

Interest Rate

Yearly Property Taxes

Yearly Home Insurance

Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

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Nearby

Trends
Schools

Single family listings in Boulder, CO

Average List Price ^$2,516,718

Percent of Sale Price 110%

About Boulder, CO

102,151 Population

6% Since 2002

^$65,436 Median Income

31.88 Median Age

18% Households with Children

View more area information

Trends Information provided by ATTOM Data Solutions.

1956937 Elementary School

1957357 Middle School

Boulder High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
4/16/2026	$1,199,000	-24.59%	Price Down
3/18/2026	$1,590,000		Listed Price

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623 Marine Street, Boulder, CO, 80302 is a Single Family Home for sale at $1,199,000 with 2,659 sqft and a lot size of 0.1. 623 Marine Street has 4 bedrooms, 2.1 baths, and was built in 1984. The property's zip code is 80302 which is in Boulder, CO

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

The data relating to real estate on this web site comes in part from the Internet Data eXchange (IDX) Program of the REcolorado. Real estate listings held by firms other than Weichert Realtors are marked with the IDX logo and detailed information about them includes the Listing Broker’s Firm Name.

The information being provided is for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Data is updated as of 5/21/2026.

This publication is designed to provide information with regard to the subject matter covered. It is displayed with the understanding that the publisher and authors are not engaged in rendering real estate, legal, accounting, tax, or other professional services and that the publisher and authors are not offering such advice in this publication. If real estate, legal, or other expert assistance is required, the services of a competent, professional person should be sought.

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623 Marine Street

Single Family Home for sale in Boulder, CO

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