310 S 40th Street Boulder, CO ^$ 1,199,000

310 S 40th Street

^$ 1,199,000

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310 S 40th Street

Boulder, CO, 80305

^$ 1,199,000

Bedrooms4 Baths2.1 Sq 2,524

Monthly Estimate*

^$ 7,382

Listed by Compass - Boulder

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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 2,524 square foot home was built in 1956 on a lot size of 0.17.

Ideally located in Boulder's sought-after Martin Acres neighborhood, 310 S 40th Street offers a perfect blend of comfort, convenience, and classic Colorado living. Set on a generous lot with mature landscaping, this move-in ready home provides a welcoming retreat just minutes from CU Boulder, parks, and local favorites. Inside, a bright and functional layout is filled with natural light, creating an inviting atmosphere throughout. The main living area flows seamlessly into the dining space and kitchen, offering an ideal setup for both everyday living and entertaining. Large windows bring the outdoors in, while thoughtful updates enhance the home's livability. The basement could serve as a potential ADU with a separate entrance, generous sized bedrooms, and an additional living space. Step outside to enjoy a spacious backyard with plenty of room for gardening, entertaining, or simply soaking in Boulder's beautiful seasons. Mature trees add privacy and shade, making this outdoor space a true extension of the home.With close proximity to trails, shops, top-rated schools, bus stops, and easy access to both CU and downtown Boulder, this Martin Acres gem presents an exceptional opportunity in one of the city's most established and beloved neighborhoods.

Single Family Active

Price

^$ 1,199,000

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 6,094

Style

Contemporary

Lot Size

0.17

Year Built

1956

Town/City

Boulder

County/Region

Boulder

MLS | Web ID

IR1057405

Features

Interior

Interior Amenities Eat-in Kitchen Open Floorplan Pantry Vaulted Ceiling(s)

Basement Full

Fireplace Features Living Room

Basement (Y/N) Y

Window Features Double Pane Windows Window Coverings

Above Grade Finished Area 1372

Half Baths 1

3/4 Baths 0

Total Bedrooms 4

Below Grade Finished Area 1064

Main Level Bedrooms 2

Main Level Bathrooms 2

Total Baths 3

General

Sewer Public Sewer

Heating Forced Air

Cooling Central Air

Utilities Cable Available Electricity Available Internet Access (Wired) Natural Gas Available

Possession Closing/DOD

Roof Composition

Appliances Dishwasher Disposal Dryer Oven Refrigerator Washer

Zoning RES

Patio/Porch Features Deck Patio

Architectural Style Contemporary

Security Features Smoke Detector(s)

Construction Materials Frame

Year Built 1956

View Mountain(s)

Levels One

Property Subtype Single Family Residence

Tax Year 2025

Ownership Individual

County Boulder

Property Type Residential

HOA N

Subdivision Name Martin Acres 2

Possible Use Residential

Full Baths 2

Status Active

High School Boulder

City Boulder

High School District Boulder Valley RE 2

Lot Size Square Feet 7258

Listing Terms Cash Conventional

Elementary School Creekside

Tax Annual Amount 6094

Middle/Junior High School Manhattan

Concessions No

Structure Type House

Standard Status Active

Occupancy Type Owner

Elementary School District Boulder Valley RE 2

Exterior

Fencing Fenced

Lot Features Level Sprinklers In Front

Water Source Public

Total Parking 0

Building Area Total 2524

Lot Size Acres 0.17

Other Equipment Satellite Dish

Internal Only

Street Number 1 310

* Excluded Features

List By

Compass - Boulder

Broker

(303) 717-9934

Phone

Affordability Calculator

$7,890

Per Month

Monthly Principal & Interest: $7,382
Monthly Property Taxes: $508
Monthly Home Insurance: --

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Down Payment

Loan Term

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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 ^$2,523,592

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.

1957865 Elementary School

1957357 Middle School

Boulder High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
5/16/2026	$1,199,000	-5.96%	Price Down
4/24/2026	$1,275,000		Listed Price

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310 S 40th Street, Boulder, CO, 80305 is a Single Family Home for sale at $1,199,000 with 2,524 sqft and a lot size of 0.17. 310 S 40th Street has 4 bedrooms, 2.1 baths, and was built in 1956. The property's zip code is 80305 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.

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PUBLISHER’S NOTICE: All real estate advertised herein is subject to the Federal Fair Housing Act and the Colorado Fair Housing Act, which Acts make it illegal to make or publish any advertisement that indicates any preference, limitation, or discrimination based on race, color, religion, sex, handicap, familial status, or national origin.

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310 S 40th Street

Single Family Home for sale in Boulder, CO

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