40 31st St, Boulder, CO 80305
OFF MARKET

40 31st St
Boulder, CO 80305

Martin Acres
  • 3 Beds
  • 4 Baths
  • 2,159 sqft

$1,385,900

Trulia Estimate
as of May 25, 2026
Est. Refi. Payment $7,651/mo*
Refinance Your Home

$1,385,900

Trulia Estimate
as of May 25, 2026
Est. Refi. Payment $7,651/mo*
Refinance Your Home
3 Beds
4 Baths
2,159 sqft

Local Information

Map showing home location
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Description

This single-family home is located at 40 31st St, Boulder, CO. 40 31st St is in the Martin Acres neighborhood in Boulder, CO and in ZIP code 80305. This property has 3 bedrooms, 4 bathrooms and approximately 2,159 sqft of floor space. This property has a lot size of 7530 sqft and was built in 1955.
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
No Info

Home Details for 40 31st St

Interior Features

Interior Details
BasementNumber of Rooms: 10
Heating & Cooling
Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air

Property Information

Year Built
Year Built: 1955Year Updated: 2005
Property Type / Style
Property Type: Single Family HomeArchitecture: split level

Exterior Features

Exterior Home Features
Exterior: Shingle, Stone, Wood
Parking & Garage
GarageParking: Garage Attached

Community

Units in Building: 1

Lot Information

Lot Area: 7530 sqft

Price History for 40 31st St

DatePriceEventSource
06/01/1999$235,000Sold
N/A
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Property Tax and Assessment

Year2025
Tax$8,188
Assessment$1,349,300
Home facts updated by county records

Comparable Sales for 40 31st St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
50 S 31st St, Boulder, CO
0.01
Single-Family Home
$875,000
07/07/25
3
2
1,505
50 31st St, Boulder, CO
0.01
Single-Family Home
$875,000
07/08/25
3
2
1,505
3155 Dover Dr, Boulder, CO
0.33
Single-Family Home
$971,547
10/16/25
3
2.5
2,542
3445 Martin Dr, Boulder, CO
0.16
Single-Family Home
$1,135,000
07/22/25
4
2.5
1,342
3465 Berkley Avenue, Boulder, CO
0.18
Single-Family Home
$895,000
10/22/25
3
2
1,420
80 S 31st St, Boulder, CO
0.05
Single-Family Home
$620,000
06/04/25
3
1
1,026
385 32nd Street, Boulder, CO
0.29
Single-Family Home
$848,000
12/19/25
3
2
1,612
3694 Chase Ct, Boulder, CO
0.43
Single-Family Home
$707,500
11/18/25
3
1.5
2,169
80 S Lashley Lane, Boulder, CO
0.10
Single-Family Home
$830,000
05/14/26
4
2
1,314
3410 Ash Avenue, Boulder, CO
0.19
Single-Family Home
$1,225,000
12/23/25
5
3
2,408

Nearby homes

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Assigned Schools

These are the assigned schools for 40 31st St.
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The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Martin Acres
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Martin Acres

At least 18 Trulia users voted on each feature.

  • 91 % Say there are sidewalks

  • 90 % Say it's walkable to restaurants

  • 87 % Say there's wildlife

  • 83 % Say it's dog friendly

  • 81 % Say people would walk alone at night

  • 78 % Say it's walkable to grocery stores

  • 63 % Say car is needed

  • 60 % Say yards are well-kept

  • 59 % Say parking is easy

  • 50 % Say kids play outside

  • 46 % Say there's holiday spirit

  • 44 % Say neighbors are friendly

  • 43 % Say streets are well-lit

  • 33 % Say there are community events

  • 29 % Say they plan to stay for at least 5 years

  • 29 % Say it's quiet

Sourced by Trulia users. Learn more about our methodology.
  • Trulia User
    "There are great access to public transportation and lots of paths are maintained for biking or for walking"
    0
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  • Trulia User
    "On the bus line, easy commute! Walk to Table Mesa Shopping Center, King Soopers, Whole Foods, near NCAR, bike to CU."
    0
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  • Trulia User
    "We have neighborhood concerts/block parties. Really great way to connect and hear live music. We also have Farm to Bus, which is a farmer's market on a bus. They have fresh eggs and bread, as well as locally grown honey. There's a park nearby which is a great place to exercise abd chat with other neighbors."
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  • Juliebfuller
    "Great kid friendly neighborhood . Great schools. Perfect for families. Easy to bike to many places and catch the bus "
    0
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  • Rachel B.
    "I've lived here for 4 years and absolutely love this neighborhood. People are friendly, there's mountain views, and it's a wonderful area to take walks and enjoy the outdoors"
    0
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  • Jake M.
    "I take the ff2 to Union station in Denver, then the 0. 75 minutes door to door. it's not bad at all! just a 10 min walk to the bus and one transfer."
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  • Roni S.
    "The ideal location for students of families, it has amazing views and wonderful food! We haven’t lived here long and already feel at home!"
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  • Karl B.
    "For anyone who wants to have easy access to hiking, biking and trail running the Martin Acres Community is an area to consider. Martin Park has a lot of bike paths that connect to other parts of Boulder. Within minutes via bike, car or bus you can be in downtown Boulder. For those who need to commute out of Boulder Hwy 36 is easy to get on to. Most of the homes are built of brick and many have been updated."
    1
    Flag
  • catidid100
    "Great area -- and easy access to Denver or Boulder/CU. The Park and Ride to Denver is a 5 minute walk from my house and the bus stop into Boulder is at the end of my street. Easy bike ride to CU and to downtown Boulder, great bike paths. Great neighborhood -- mix of college students, families, retirees, CU professionals. Active neighborhood association."
    0
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40 31st St, Boulder, CO 80305 is a 3 bedroom, 4 bathroom, 2,159 sqft single-family home built in 1955. 40 31st St is located in Martin Acres, Boulder. This property is not currently available for sale. 40 31st St was last sold on Jun 1, 1999 for $235,000. The current Trulia Estimate for 40 31st St is $1,385,900.