340 18th St, Boulder, CO 80302
Property image
Property image
OFF MARKET

340 18th St
Boulder, CO 80302

East Chautauqua
  • 4 Beds
  • 4 Baths
  • 2,384 sqft

$2,046,000

Trulia Estimate
as of Aug 22, 2026
Est. Refi. Payment $11,346/mo*
Refinance Your Home

$2,046,000

Trulia Estimate
as of Aug 22, 2026
Est. Refi. Payment $11,346/mo*
Refinance Your Home
4 Beds
4 Baths
2,384 sqft

Home Value

Trulia Estimate
$2.05M
Since last month
Increased$12K (+0.6%)
Since last year
Increased$25K (+1.2%)
Since last sale
Increased$206K (+11.1%)
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 +88% in the last 10 years
MonthEstimated value
2026
August 2026$2.06M
July 2026$2.04M
June 2026$2.05M
May 2026$2.06M
April 2026$2.08M
March 2026$2.06M
February 2026$2.03M
January 2026$1.98M
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
1930 Columbine Avenue, Boulder, CO
0.19
Single-Family Home
$1,425,000
04/08/26
4
3
3,131
2030 Columbine Ave, Boulder, CO
0.21
Single-Family Home
$1,526,000
06/03/26
4
3
2,641
1625 Mariposa Ave, Boulder, CO
0.17
Single-Family Home
$2,500,000
07/20/26
3
2.5
2,340
1502 Columbine Avenue, Boulder, CO
0.26
Single-Family Home
$2,245,000
02/02/26
4
4
3,430
1816 Mariposa Ave, Boulder, CO
0.10
Single-Family Home
$2,950,000
09/08/25
5
3.5
3,840
370 20th St, Boulder, CO
0.12
Single-Family Home
$1,325,000
03/31/26
5
3
2,700
1550 Bluebell Avenue, Boulder, CO
0.18
Single-Family Home
$1,400,000
05/20/26
4
4
3,226
330 16th St, Boulder, CO
0.13
Single-Family Home
$2,550,000
08/03/26
5
2.5
3,804
205 Camden Pl, Boulder, CO
0.09
Single-Family Home
$2,755,000
10/15/25
4
3
3,482
525 13th St, Boulder, CO
0.39
Single-Family Home
$1,810,000
09/05/25
3
2.5
3,232

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
1860 Bluebell Ave, Boulder, CO 80302
0.04
$5,594,400
6
7
5,110
Off Market
350 17th St, Boulder, CO 80302
0.07
$1,730,800
3
2
2,689
Off Market
340 17th St, Boulder, CO 80302
0.07
$3,046,100
5
4
4,248
Off Market
1816 Mariposa Ave, Boulder, CO 80302
0.10
$2,911,800
5
3.5
3,840
Off Market
1838 Mariposa Ave, Boulder, CO 80302
0.11
$2,998,000
6
4.5
5,081
Off Market
240 Abbey Pl, Boulder, CO 80302
0.06
$2,236,200
5
3.5
3,508
Off Market
300 19th St, Boulder, CO 80302
0.06
$1,412,000
4
2.5
2,766
Off Market
205 Camden Pl, Boulder, CO 80302
0.09
$2,727,600
4
3
3,482
Off Market
370 20th St, Boulder, CO 80302
0.12
$1,325,000
5
3
2,700
Recently Sold
1625 Mariposa Ave, Boulder, CO 80302
0.17
$2,500,000
3
2.5
2,340
Recently Sold
2003 Bluebell Ave, Boulder, CO 80302
0.13
$1,010,000
2
1
2,248
Recently Sold
360 20th St, Boulder, CO 80302
0.12
$1,098,900
4
2
2,308
Off Market

Local Information

  • Map ViewExplore the area around 340 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
1964
Living Area
2,384 sqft
Price/Sqft
$858
Parking
Garage

About this House

Move into one of Boulder's most desirable neighborhoods. Located on quiet street steps from miles of hiking trails & just a few blocks from Chautauqua Park, this home has been completely remodeled & has spectacular Flatiron & foothills views. Kitchen w/granite, SS appliances & wine cooler. New hardwood floors throughout. New windows, furnace, H2O, A/C. Enjoy entertaining, sunsets & views from lg rooftop deck. Near Whole Foods, bike paths, CU & a quick bike ride to downtown & 29th St. Mall.
340 18th St, Boulder, CO 80302 is a 4 bedroom, 4 bathroom, 2,384 sqft single-family home in East Chautauqua, built in 1964. It last sold for $1,850,000 on May 4, 2021. It is currently off market. The Trulia Estimate is $2,046,000, with a rent estimate of $6,497/month.

Home Details for 340 18th St

Interior Features

Interior Details
BasementNumber of Rooms: 7
Heating & Cooling
Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 2Floors: Hardwood
Appliances & Utilities
DishwasherMicrowaveRefrigerator
Fireplace & Spa
Fireplace

Exterior Features

Exterior Home Features
Roof: OtherDeckExterior: Wood, Brick
Parking & Garage
GarageParking Spaces: 2Parking: Garage Detached

Property Information

Year Built
Year Built: 1964Year Updated: 2005
Property Type / Style
Property Type: Single Family HomeArchitecture: Other

Community

Units in Building: 1

Lot Information

Lot Area: 8276 sqft

Price and Tax history

DateEventPrice
May 4, 2021
Source: IRES as distributed by MLS GRID #937289
Sold
$1,850,000
Apr 8, 2021
Source: IRES as distributed by MLS GRID #937289
Listed For Sale
$1,800,000
May 28, 2014
Source: IRES as distributed by MLS GRID #732427
Sold
$842,000
Apr 12, 2014
Source: Agent Provided
PriceChange
$849,900
Price decreased by 3%
Mar 22, 2014
Source: Agent Provided
PriceChange
$878,000
Price decreased by 2%

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 340 18th St

  • What is 340 18th St estimated to be worth?
    Trulia's estimated value for 340 18th St in Boulder, CO is $2,046,000.
  • What is the price history for 340 18th St?
    340 18th St in Boulder, CO last sold for $1,850,000 in May 2021.
  • 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 340 18th St have air conditioning?
    Yes, 340 18th St in Boulder, CO has air conditioning.
  • How big is the lot at 340 18th St?
    The lot at 340 18th St in Boulder, CO is about 0.19 acres (8,484 sq ft).

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Apartments for Rent

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Off Market Homes Near 340 18th St

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