2801 21st St, Boulder, CO 80304
OFF MARKET

2801 21st St
Boulder, CO 80304

Old North Boulder
  • 3 Beds
  • 2 Baths
  • 1,359 sqft

$860,000

Trulia Estimate
as of Jul 24, 2026
Est. Refi. Payment $4,749/mo*

$860,000

Trulia Estimate
as of Jul 24, 2026
Est. Refi. Payment $4,749/mo*
3 Beds
2 Baths
1,359 sqft

Local Information

  • Map ViewExplore the area around 2801 21st St.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1955
Living Area
1,359 sqft
Price/Sqft
$633
Parking
Garage

About this House

This single-family home is located at 2801 21st St, Boulder, CO. 2801 21st St is in the Old North Boulder neighborhood in Boulder, CO and in ZIP code 80304. This property has 3 bedrooms, 2 bathrooms and approximately 1,359 sqft of floor space. This property has a lot size of 9124 sqft and was built in 1955.
2801 21st St, Boulder, CO 80304 is a 3 bedroom, 2 bathroom, 1,359 sqft single-family home in Old North Boulder, built in 1955. It last sold for $164,000 on Sep 3, 1993. It is currently off market. The Trulia Estimate is $860,000, with a rent estimate of $3,440/month.

Home Details for 2801 21st St

Interior Features

Heating & Cooling
Heating: Forced AirHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 1
Interior Details
Number of Rooms: 6

Property Information

Year Built
Year Built: 1955Year Updated: 1955
Property Type / Style
Property Type: Single Family HomeArchitecture: Ranch / Rambler

Exterior Features

Exterior Home Features
Exterior: Stone
Parking & Garage
GarageParking: Carport, Garage

Community

Units in Building: 1

Lot Information

Lot Area: 9124 sqft

Price History for 2801 21st St

DatePriceEventSource
09/03/1993$164,000Sold
N/A

Market trends in Boulder

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$891K
$60.83K
MoM
Sale-to-List Price
98.2%
0.4%
MoM
Price per sq ft
$503
$2
MoM
Available listings
778
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Property Tax and Assessment

Year2025
Tax$4,864
Assessment$877,400
Home facts updated by county records

Comparable Sales for 2801 21st St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.07
Single-Family Home
$1,017,800
04/24/26
3
1.5
1,806
0.21
Single-Family Home
$898,000
06/22/26
4
2
1,354
0.08
Single-Family Home
$769,000
10/17/25
3
1
1,394
0.09
Single-Family Home
$827,000
06/03/26
3
1
1,259
0.16
Single-Family Home
$985,000
05/29/26
3
1.5
1,551
0.38
Single-Family Home
$800,000
04/17/26
3
2
1,529
0.36
Single-Family Home
$1,299,900
03/05/26
3
2
1,493
0.36
Single-Family Home
$1,157,500
02/03/26
3
2
1,440
0.23
Single-Family Home
$1,035,000
12/12/25
4
2
2,080
0.34
Single-Family Home
$1,125,000
06/23/26
3
2
1,107

Nearby homes

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Assigned Schools

These are the assigned schools for 2801 21st St.
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Neighborhood stats provided by third party data sources.

What Locals Say about Old North Boulder

At least 15 Trulia users voted on each feature.
  • 100 % Say it's dog friendly

  • 95 % Say there are sidewalks

  • 93 % Say there's wildlife

  • 91 % Say it's walkable to grocery stores

  • 90 % Say there's holiday spirit

  • 88 % Say it's walkable to restaurants

  • 88 % Say parking is easy

  • 83 % Say kids play outside

  • 79 % Say it's quiet

  • 78 % Say people would walk alone at night

  • 72 % Say yards are well-kept

  • 68 % Say neighbors are friendly

  • 62 % Say they plan to stay for at least 5 years

  • 55 % Say car is needed

  • 35 % Say streets are well-lit

  • 20 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.

LGBTQ Local Legal Protections

Apartments for Rent

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Homes for sale near 2801 21st St

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Off Market Homes Near 2801 21st St

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