390 21st St, Boulder, CO 80302
OFF MARKET

$1,592,300

Trulia Estimate
  • 4 Beds
  • 3 Baths
  • 2,575 sqft

390 21st St, Boulder, CO 80302

East Chautauqua
Est. Refi. Payment $9,502/mo*
Refinance Your Home
Currently Off Market - Sold Aug 19, 2002 for $487,000

Home Value

Trulia Estimate
$1.59M
Since last month
Decreased$17K (-1%)
Since last year
Increased$24K (+1.5%)
Since last sale
Increased$1M (+227%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +43% in the last 10 years
MonthEstimated value
2026
September 2026$1.59M
August 2026$1.61M
July 2026$1.6M
June 2026$1.61M
May 2026$1.62M
April 2026$1.64M
March 2026$1.62M
February 2026$1.58M
January 2026$1.51M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
370 20th St, Boulder, CO
0.06
Single-Family Home
$1,325,000
03/31/26
5
3
2,700
2030 Columbine Ave, Boulder, CO
0.14
Single-Family Home
$1,526,000
06/03/26
4
3
2,641
1930 Columbine Avenue, Boulder, CO
0.16
Single-Family Home
$1,425,000
04/08/26
4
3
3,131
2207 Bluebell Ave, Boulder, CO
0.09
Single-Family Home
$1,535,000
01/08/26
4
2
3,432
419 22nd St, Boulder, CO
0.06
Single-Family Home
$1,232,000
12/04/25
4
2
1,494
2032 Mariposa Avenue, Boulder, CO
0.07
Single-Family Home
$1,040,000
03/02/26
3
2
1,327
1550 Bluebell Avenue, Boulder, CO
0.35
Single-Family Home
$1,400,000
05/20/26
4
4
3,226
1625 Mariposa Ave, Boulder, CO
0.30
Single-Family Home
$2,500,000
07/20/26
3
2.5
2,340
880 19th St, Boulder, CO
0.46
Single-Family Home
$975,000
05/12/26
5
3
1,692
1512 Mariposa Ave, Boulder, CO
0.36
Single-Family Home
$1,025,000
09/26/25
3
2
2,023

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
385 22nd St, Boulder, CO 80302
0.05
$1,544,700
4
2
1,526
Off Market
419 22nd St, Boulder, CO 80302
0.06
$1,232,000
4
2
1,494
Recently Sold
2207 Bluebell Ave, Boulder, CO 80302
0.09
$1,535,000
4
2
3,432
Recently Sold
360 20th St, Boulder, CO 80302
0.06
$1,087,500
4
2
2,308
Off Market
370 20th St, Boulder, CO 80302
0.06
$1,325,000
5
3
2,700
Recently Sold
2032 Mariposa Avenue, Boulder, CO 80302
0.08
$1,040,000
3
2
1,327
Recently Sold
245 Fair Place, Boulder, CO 80302
0.09
$2,799,000
4
4.5
5,005
For Sale
2003 Bluebell Ave, Boulder, CO 80302
0.07
$1,010,000
2
1
2,248
Recently Sold
2119 Mariposa Ave, Boulder, CO 80302
0.10
$910,000
-
-
-
Recently Sold
205 Fair Place, Boulder, CO 80302
0.11
$2,161,700
4
2.5
2,472
Off Market
245 Devon Pl, Boulder, CO 80302
0.10
$1,619,600
4
3
2,512
Off Market
300 19th St, Boulder, CO 80302
0.12
$1,367,500
4
2.5
2,766
Off Market

Local Information

  • Map ViewExplore the area around 390 21st St.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1955
2,575 sqft
$618/sqft

About this House

This single-family home is located at 390 21st St, Boulder, CO. 390 21st St is in the East Chautauqua neighborhood in Boulder, CO and in ZIP code 80302. This property has 4 bedrooms, 3 bathrooms and approximately 2,575 sqft of floor space. This property has a lot size of 9125 sqft and was built in 1955.
390 21st St, Boulder, CO 80302 is a 4 bedroom, 3 bathroom, 2,575 sqft single-family home in East Chautauqua, built in 1955. It last sold for $487,000 on Aug 19, 2002. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,592,300, with a rent estimate of $6,464/month.

Home Details for 390 21st St

Interior Features

Interior Details
BasementNumber of Rooms: 8
Heating & Cooling
Heating: Forced AirHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 1

Exterior Features

Exterior Home Features
Roof: AsphaltExterior: Stone

Property Information

Year Built
Year Built: 1955Year Updated: 1965
Property Type / Style
Property Type: Single Family HomeArchitecture: Ranch / Rambler

Community

Units in Building: 1

Lot Information

Lot Area: 9125 sqft

Price and Tax history

DateEventPrice
Aug 19, 2002
Source: N/A
Sold
$487,000

Market trends in Boulder

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$904K
$6.67KMoM
Sale-to-List Price
98.2%
0.2%MoM
Price per sq ft
$489
$10MoM
Available listings
765
3MoM

Around this home

Neighborhood Overview

East Chautauqua
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about East Chautauqua

At least 10 Trulia users voted on each feature.

  • 100 % Say there are sidewalks

  • 83 % Say people would walk alone at night

  • 83 % Say it's dog friendly

  • 77 % Say there's wildlife

  • 71 % Say there's holiday spirit

  • 67 % Say it's walkable to restaurants

  • 67 % Say yards are well-kept

  • 67 % Say parking is easy

  • 64 % Say streets are well-lit

  • 60 % Say car is needed

  • 54 % Say neighbors are friendly

  • 50 % Say they plan to stay for at least 5 years

  • 50 % Say it's quiet

  • 44 % Say kids play outside

  • 43 % Say there are community events

  • 33 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • Chris O
    "I drive 18 miles towards Denver and / or hit DIA 1 time per week. Proximity to Baseline and 36 is awesome as I don’t have to deal with Boulder traffic. Great neighborhood"
    0
    Flag
  • Francie A.
    "Proximity without congestion"
    0
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 390 21st St

  • What is 390 21st St estimated to be worth?
    Trulia's estimated value for 390 21st St in Boulder, CO is $1,592,300.
  • What is the price history for 390 21st St?
    390 21st St in Boulder, CO last sold for $487,000 in August 2002.
  • Is Boulder a buyer's or seller's market?
    Boulder is currently a balanced market, based on recent for-sale activity.
  • What's the median sale price in Boulder?
    The median sale price in Boulder is $904K. That is up $6.67K from the prior month.
  • How big is the lot at 390 21st St?
    The lot at 390 21st St in Boulder, CO is about 0.21 acres (9,125 sq ft).

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Apartments for Rent

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Off Market Homes Near 390 21st St

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