333 18th St, Boulder, CO 80302
OFF MARKET

333 18th St
Boulder, CO 80302

East Chautauqua
  • 4 Beds
  • 4 Baths
  • 2,750 sqft (on 0.25 acres)

$1,831,100

Trulia Estimate
as of Jun 22, 2026
Est. Refi. Payment $9,913/mo*
Refinance Your Home

$1,831,100

Trulia Estimate
as of Jun 22, 2026
Est. Refi. Payment $9,913/mo*
Refinance Your Home
4 Beds
4 Baths
2,750 sqft
(on 0.25 acres)

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

This single-family home is located at 333 18th St, Boulder, CO. 333 18th St is in the East Chautauqua neighborhood in Boulder, CO and in ZIP code 80302. This property has 4 bedrooms, 4 bathrooms and approximately 2,750 sqft of floor space. This property has a lot size of 10829 sqft and was built in 1956.
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
Patio
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
Less than a day ago

Home Details for 333 18th St

Interior Features

Interior Details
BasementNumber of Rooms: 9Types of Rooms: Walk In Closet, Dining Room, Family Room, Laundry Room, Master BathCeiling Fan
Heating & Cooling
Heating: Forced Air, Gas, Wood PelletAir ConditioningCooling System: SolarHeating Fuel: Forced Air
Appliances & Utilities
Cable ReadyDishwasherDisposalDryerMicrowaveRefrigeratorWasher
Fireplace & Spa
Fireplace
Windows, Doors, Floors & Walls
Double Paned Windows
Levels, Entrance, & Accessibility
Floors: Tile, Carpet, Hardwood

Exterior Features

Exterior Home Features
Roof: AsphaltExterior: StoneGardenLawnPatioSprinkler System
Parking & Garage
GarageParking: Garage Attached

Property Information

Year Built
Year Built: 1956Year Updated: 2015
Property Type / Style
Property Type: Single Family HomeArchitecture: Split-level

Community

Units in Building: 1

Lot Information

Lot Area: 10829 sqft

Price History for 333 18th St

DatePriceEventSource
06/17/2016$1,172,000Sold
N/A
06/04/2014$680,000Sold
IRES as distributed by MLS GRID #731106

Market trends in Boulder

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$955K
$13.33KMoM
Sale-to-List Price
97.9%
1.0%MoM
Price per sq ft
$503
$12MoM
Available listings
775
41MoM
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Property Tax and Assessment

Year2025
Tax$9,091
Assessment$1,703,100
Home facts updated by county records

Homeowner tools

Estimated monthly rent$5,431/mo
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Homes for rent near 333 18th St

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Comparable Sales for 333 18th St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
1930 Columbine Avenue, Boulder, CO
0.20
Single-Family Home
$1,425,000
04/08/26
4
3
3,131
360 20th St, Boulder, CO
0.16
Single-Family Home
$1,115,000
08/15/25
4
2
2,308
370 20th St, Boulder, CO
0.16
Single-Family Home
$1,325,000
03/31/26
5
3
2,700
1550 Bluebell Ave, Boulder, CO
0.14
Single-Family Home
$1,400,000
05/20/26
3
2.5
3,226
2030 Columbine Ave, Boulder, CO
0.23
Single-Family Home
$1,526,000
06/03/26
4
3
2,641
1816 Mariposa Ave, Boulder, CO
0.10
Single-Family Home
$2,950,000
09/08/25
5
3.5
3,840
1502 Columbine Avenue, Boulder, CO
0.22
Single-Family Home
$2,245,000
02/02/26
4
4
3,430
1512 Mariposa Ave, Boulder, CO
0.16
Single-Family Home
$1,025,000
09/26/25
3
2
2,023
1516 Columbine Ave, Boulder, CO
0.21
Single-Family Home
$2,275,000
08/11/25
5
3.5
3,448
2207 Bluebell Ave, Boulder, CO
0.31
Single-Family Home
$1,535,000
01/08/26
4
2
3,432

Nearby homes

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Assigned Schools

These are the assigned schools for 333 18th St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

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

  • 82 % 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

  • 64 % Say parking is easy

  • 64 % Say streets are well-lit

  • 57 % Say car is needed

  • 54 % Say neighbors are friendly

  • 50 % Say it's quiet

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

  • 47 % Say kids play outside

  • 46 % Say there are community events

  • 36 % 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

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Homes for sale near 333 18th St

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Off Market Homes Near 333 18th St

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333 18th St, Boulder, CO 80302 is a 4 bedroom, 4 bathroom, 2,750 sqft single-family home built in 1956. 333 18th St is located in East Chautauqua, Boulder. This property is not currently available for sale. 333 18th St was last sold on Jun 17, 2016 for $1,172,000. The current Trulia Estimate for 333 18th St is $1,831,100.