401 18th St, Boulder, CO 80302
Property image
Property image
OFF MARKET

401 18th St
Boulder, CO 80302

East Chautauqua
  • 4 Beds
  • 3 Baths
  • 4,000 sqft (on 0.26 acres)

$3,021,900

Trulia Estimate
as of Aug 25, 2026
Est. Refi. Payment $16,659/mo*
Refinance Your Home

$3,021,900

Trulia Estimate
as of Aug 25, 2026
Est. Refi. Payment $16,659/mo*
Refinance Your Home
4 Beds
3 Baths
4,000 sqft
(on 0.26 acres)

Home Value

Trulia Estimate
$3.02M
Since last month
Decreased$8K (-0.3%)
Since last year
Increased$28K (+0.9%)
Since last sale
Increased$19K (+0.6%)
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 +84% in the last 10 years
MonthEstimated value
2026
August 2026$3.02M
July 2026$3.03M
June 2026$3.01M
May 2026$3.05M
April 2026$3.07M
March 2026$2.99M
February 2026$2.96M
January 2026$2.89M
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
330 16th St, Boulder, CO
0.12
Single-Family Home
$2,550,000
08/03/26
5
2.5
3,804
1816 Mariposa Ave, Boulder, CO
0.05
Single-Family Home
$2,950,000
09/08/25
5
3.5
3,840
205 Camden Pl, Boulder, CO
0.16
Single-Family Home
$2,755,000
10/15/25
4
3
3,482
1380 Bluebell Ave, Boulder, CO
0.27
Single-Family Home
$3,300,000
02/23/26
3
4
4,066
1330 Mariposa Ave, Boulder, CO
0.27
Single-Family Home
$3,500,000
12/09/25
4
3
2,640
1625 Mariposa Ave, Boulder, CO
0.10
Single-Family Home
$2,500,000
07/20/26
3
2.5
2,340
1930 Columbine Avenue, Boulder, CO
0.15
Single-Family Home
$1,425,000
04/08/26
4
3
3,131
1502 Columbine Avenue, Boulder, CO
0.19
Single-Family Home
$2,245,000
02/02/26
4
4
3,430
1498 King Ave, Boulder, CO
0.22
Single-Family Home
$3,885,000
04/16/26
4
4.5
5,734
626 17th St, Boulder, CO
0.15
Single-Family Home
$2,795,000
03/26/26
5
4.5
4,775

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
1816 Mariposa Ave, Boulder, CO 80302
0.05
$2,911,800
5
3.5
3,840
Off Market
1838 Mariposa Ave, Boulder, CO 80302
0.07
$3,014,700
6
4.5
5,081
Off Market
1860 Bluebell Ave, Boulder, CO 80302
0.07
$5,594,400
6
7
5,110
Off Market
1625 Mariposa Ave, Boulder, CO 80302
0.10
$2,500,000
3
2.5
2,340
Recently Sold
350 17th St, Boulder, CO 80302
0.06
$1,725,100
3
2
2,689
Off Market
1715 Columbine Ave, Boulder, CO 80302
0.13
$1,903,600
4
3.5
2,855
Off Market
1835 Columbine Ave, Boulder, CO 80302
0.14
$1,816,100
4
3
2,344
Off Market
1841 Columbine Ave, Boulder, CO 80302
0.15
$1,775,800
3
3.5
2,396
Off Market
340 17th St, Boulder, CO 80302
0.08
$3,046,100
5
4
4,248
Off Market
1930 Columbine Avenue, Boulder, CO 80302
0.15
$1,650,000
4
3
3,131
For Sale
1601 Mariposa Ave, Boulder, CO 80302
0.12
$1,550,400
4
2
1,838
Off Market
1780 Baseline Rd, Boulder, CO 80302
0.16
$1,889,900
4
3.5
3,437
Off Market

Local Information

  • Map ViewExplore the area around 401 18th 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
2002
Lot Size
0.26 acres
Living Area
4,000 sqft
Price/Sqft
$755
Parking
Garage

About this House

This single-family home is located at 401 18th St, Boulder, CO. 401 18th St is in the East Chautauqua neighborhood in Boulder, CO and in ZIP code 80302. This property has 4 bedrooms, 3 bathrooms and approximately 4,000 sqft of floor space. This property has a lot size of 0.26 acres and was built in 2002.
401 18th St, Boulder, CO 80302 is a 4 bedroom, 3 bathroom, 4,000 sqft single-family home in East Chautauqua, built in 2002. It last sold for $3,000,000 on Apr 28, 2023. More recently, it was listed as a rental in January 2019 with an asking price of $8,000 per month. That rental listing was removed on March 24, 2021. It is currently off market. The Trulia Estimate is $3,021,900, with a rent estimate of $6,989/month.

Home Details for 401 18th St

Interior Features

Interior Details
BasementNumber of Rooms: 10
Heating & Cooling
Heating: Forced AirAir ConditioningHeating Fuel: Forced Air
Appliances & Utilities
DryerWasher
Levels, Entrance, & Accessibility
Floors: Hardwood

Exterior Features

Exterior Home Features
Roof: AsphaltDeckExterior: Shingle, Wood
Parking & Garage
GarageParking: Garage Attached, Off Street

Property Information

Year Built
Year Built: 2002Year Updated: 2002
Property Type / Style
Property Type: Single Family HomeArchitecture: Split-level

Community

Units in Building: 1

Lot Information

Lot Area: 0.26 acres

Price and Tax history

DateEventPrice
Apr 28, 2023
Source: IRES as distributed by MLS GRID #979238
Sold
$3,000,000
Nov 29, 2022
Source: IRES as distributed by MLS GRID #979238
Listed For Sale
$3,495,000
Mar 24, 2021
Source: N/A
ListingRemoved
Jan 22, 2019
Source: N/A
ListingRemoved
$8,000
Jan 9, 2019
Source: N/A
Listed For Rent
$8,000

Market trends in Boulder

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$897K
$10.37KMoM
Sale-to-List Price
98.4%
0.1%MoM
Price per sq ft
$499
$4MoM
Available listings
760
19MoM

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 401 18th St

  • What is 401 18th St estimated to be worth?
    Trulia's estimated value for 401 18th St in Boulder, CO is $3,021,900.
  • What is the price history for 401 18th St?
    401 18th St in Boulder, CO last sold for $3,000,000 in April 2023.
  • 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 $897K. That is up $10.37K from the prior month.
  • Does 401 18th St have laundry facilities?
    Yes, 401 18th St in Boulder, CO has in-unit laundry.
  • How big is the lot at 401 18th St?
    The lot at 401 18th St in Boulder, CO is about 0.26 acres (11,251 sq ft).

Explore by feature - Pet Friendly

283 pet-friendly rentals in Boulder, CO

Explore by feature - Garage

218 rentals with a garage in Boulder, CO

Explore by feature - Air Conditioning

435 rentals with air conditioning in Boulder, CO

Explore by feature - Pool

260 rentals with a pool in Boulder, CO

Explore by feature - Washer/dryer

611 rentals with a washer/dryer in Boulder, CO

Explore by feature - Outdoor Space

88 rentals with an outdoor space in Boulder, CO

Apartments for Rent

Skip to last item
Skip to first item

Off Market Homes Near 401 18th St

Skip to last item
Skip to first item

Homes for sale near 401 18th St

Skip to last item
Skip to first item
Skip to last item
  • Results are loading
Skip to first item