3175 18th St, Boulder, CO 80304
Living / Dining
Kitchen
OFF MARKET

3175 18th St
Boulder, CO 80304

Old North Boulder
  • 4 Beds
  • 2,400 sqft

$1,393,500

Trulia Estimate
as of Aug 8, 2026
Est. Refi. Payment $7,825/mo*

$1,393,500

Trulia Estimate
as of Aug 8, 2026
Est. Refi. Payment $7,825/mo*
4 Beds
2,400 sqft

Local Information

  • Map ViewExplore the area around 3175 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
1952
Living Area
2,400 sqft
Price/Sqft
$581
Parking
Garage

About this House

This single-family home is located at 3175 18th St, Boulder, CO. 3175 18th St is in the Old North Boulder neighborhood in Boulder, CO and in ZIP code 80304. This property has 4 bedrooms and approximately 2,400 sqft of floor space. This property has a lot size of 6276 sqft and was built in 1952.
3175 18th St, Boulder, CO 80304 is a 4 bedroom, 2,400 sqft single-family home in Old North Boulder, built in 1952. It last sold for $100,000 on Oct 29, 2009. More recently, it was listed as a rental in February 2018 with an asking price of $1,600 per month. That rental listing was removed on March 24, 2021. It is currently off market. The Trulia Estimate is $1,393,500, with a rent estimate of $4,663/month.

Home Details for 3175 18th St

Interior Features

Interior Details
BasementNumber of Rooms: 8Types of Rooms: Dining Room
Heating & Cooling
Heating: Other, OtherAir ConditioningCooling System: EvaporativeHeating Fuel: Other
Levels, Entrance, & Accessibility
Stories: 1Floors: Tile
Appliances & Utilities
DishwasherDryerRefrigeratorWasher

Exterior Features

Exterior Home Features
Roof: AsphaltExterior: StoneLawn
Parking & Garage
GarageParking: On Street, Garage

Property Information

Year Built
Year Built: 1952Year Updated: 1990
Property Type / Style
Property Type: Single Family HomeArchitecture: Ranch / Rambler

Community

Units in Building: 1

Lot Information

Lot Area: 6276 sqft

Price History for 3175 18th St

DatePriceEventSource
03/24/2021ListingRemovedN/A
03/26/2018$1,600ListingRemovedN/A
02/25/2018$1,600Listed For RentN/A
12/09/2017$1,500ListingRemovedN/A
10/22/2017$1,500PriceChange
N/A
08/08/2017$1,550Listed For RentN/A
07/03/2017$1,575ListingRemovedN/A
06/08/2017$1,575Listed For RentN/A
07/29/2010$565,000ListingRemovedAgent Provided
05/29/2010$565,000PriceChange
Agent Provided
04/09/2010$596,500PriceChange
Agent Provided
02/18/2010$615,000PriceChange
Agent Provided
11/10/2009$629,900Listed For SaleAgent Provided
10/29/2009$100,000Sold
N/A
05/14/2007$579,900Sold
N/A
09/30/2002$367,000Sold
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
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$7,668
Assessment$1,307,400
Home facts updated by county records

Comparable Sales for 3175 18th St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.05
Single-Family Home
$1,250,000
04/14/26
4
2.5
1,936
0.15
Single-Family Home
$1,962,500
01/15/26
4
3
2,434
0.23
Single-Family Home
$1,765,000
09/12/25
4
2.5
2,688
0.12
Single-Family Home
$1,800,000
03/27/26
5
3.5
3,127
0.05
Single-Family Home
$1,299,900
03/05/26
3
2
1,493
0.28
Single-Family Home
$1,385,000
05/18/26
3
2.5
2,203
0.44
Single-Family Home
$795,000
06/22/26
4
2
2,342
0.03
Single-Family Home
$3,550,000
05/08/26
6
5.5
4,581
0.11
Single-Family Home
$783,000
08/07/26
3
1.5
1,095
0.23
Single-Family Home
$800,000
04/17/26
3
2
1,529

Nearby homes

Get a sense of prices in the area by checking nearby homes.
Skip to last item
Skip to first item

Assigned Schools

These are the assigned schools for 3175 18th 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

Skip to last item
Skip to first item

Explore by feature - Pet Friendly

Explore by feature - Garage

Explore by feature - Air Conditioning

Explore by feature - Pool

Explore by feature - Washer/dryer

Explore by feature - Outdoor Space

Homes for sale near 3175 18th St

Skip to last item
Skip to first item

Off Market Homes Near 3175 18th St

Skip to last item
Skip to first item

Frequently asked questions about 3175 18th St

  • What is 3175 18th St estimated to be worth?
    Trulia's estimated value for 3175 18th St in Boulder, CO is $1,393,500.
  • What is the price history for 3175 18th St?
    3175 18th St in Boulder, CO last sold for $100,000 in October 2009.
  • 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 $891K. That is down $60.83K from the prior month.
  • Does 3175 18th St have air conditioning?
    Yes, 3175 18th St in Boulder, CO has air conditioning.
  • Does 3175 18th St have laundry facilities?
    Yes, 3175 18th St in Boulder, CO has in-unit laundry.