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

$1,390,900

Trulia Estimate
  • 4 Beds
  • 2,400 sqft

3175 18th St, Boulder, CO 80304

Old North Boulder
Est. Refi. Payment $8,197/mo*
Refinance Your Home
Currently Off Market - Sold Oct 29, 2009 for $100,000

Home Value

Trulia Estimate
$1.39M
Since last month
Increased$35K (+2.6%)
Since last year
Increased$100K (+7.7%)
Since last sale
Increased$1M (+1,290.9%)
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 +38% in the last 10 years
MonthEstimated value
2026
November 2026$1.39M
October 2026$1.39M
September 2026$1.36M
August 2026$1.39M
July 2026$1.39M
June 2026$1.42M
May 2026$1.39M
April 2026$1.38M
2025
2024
2023
2020

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
1805 Forest Ave, Boulder, CO
0.05
Single-Family Home
$1,250,000
04/14/26
4
2.5
1,936
1707 Grape Ave, Boulder, CO
0.15
Single-Family Home
$1,962,500
01/15/26
4
3
2,434
3275 19th Street, Boulder, CO
0.12
Single-Family Home
$1,800,000
03/27/26
5
3.5
3,127
1820 Forest Ave, Boulder, CO
0.05
Single-Family Home
$1,299,900
03/05/26
3
2
1,493
1414 Elder Avenue, Boulder, CO
0.24
Single-Family Home
$1,302,600
08/10/26
3
3
2,228
1480 Hawthorn Ave, Boulder, CO
0.28
Single-Family Home
$1,385,000
05/18/26
3
2.5
2,203
3505 19th St, Boulder, CO
0.44
Single-Family Home
$795,000
06/22/26
4
2
2,342
3180 18th St, Boulder, CO
0.03
Single-Family Home
$3,550,000
05/08/26
6
5.5
4,581
3150 19th St, Boulder, CO
0.11
Single-Family Home
$783,000
08/07/26
3
1.5
1,095
1412 Elder Ave, Boulder, CO
0.23
Single-Family Home
$800,000
04/17/26
3
2
1,529

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
3185 18th St, Boulder, CO 80304
0.01
$822,200
2
1
1,088
Off Market
3165 18th St, Boulder, CO 80304
0.01
$1,245,700
3
2
1,836
Off Market
3170 17th St, Boulder, CO 80304
0.02
$1,617,500
4
3
2,540
Off Market
1790 Forest Ave, Boulder, CO 80304
0.02
$1,634,500
4
3
2,404
Off Market
3180 17th St, Boulder, CO 80304
0.02
$1,936,200
4
4
2,287
Off Market
3155 18th St, Boulder, CO 80304
0.03
$1,114,500
4
2
2,052
Off Market
3160 17th St, Boulder, CO 80304
0.03
$1,030,900
3
2
1,310
Off Market
3190 17th St, Boulder, CO 80304
0.03
$1,644,000
3
2
1,800
Off Market
3170 18th St, Boulder, CO 80304
0.03
$1,090,500
3
1.5
1,305
Off Market
3180 18th St, Boulder, CO 80304
0.03
$3,550,000
6
5.5
4,581
Recently Sold
3160 18th St, Boulder, CO 80304
0.03
$1,453,500
5
2.5
2,960
Off Market
3190 18th St, Boulder, CO 80304
0.04
$978,900
3
2
1,110
Off Market
3090 17th St, Boulder, CO 80304
0.04
$1,193,000
4
2
2,111
Off Market
1755 Forest Ave, Boulder, CO 80304
0.04
$1,213,200
3
2
2,098
Off Market
1775 Forest Ave, Boulder, CO 80304
0.04
$1,413,700
4
3
2,300
Off Market
1775 Forest Ave #Furnished, Boulder, CO 80304
0.04
-
4
3
2,300
Off Market
3085 18th St, Boulder, CO 80304
0.05
$1,327,300
3
2
2,076
Off Market
3150 18th St, Boulder, CO 80304
0.05
$3,021,800
6
5
2,861
Off Market
1805 Forest Ave #A, Boulder, CO 80304
0.05
$1,250,000
3
2
1,300
Recently Sold
1805 Forest Ave, Boulder, CO 80304
0.05
$1,250,000
4
2.5
1,936
Recently Sold

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

Single-Family Home
Built in 1952
2,400 sqft
$580/sqft
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. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,390,900, with a rent estimate of $5,094/month.

Home Details for 3175 18th St

Interior Features

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

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 and Tax history

DateEventPrice
Mar 24, 2021
Source: N/A
ListingRemoved
Mar 26, 2018
Source: N/A
ListingRemoved
$1,600
Feb 25, 2018
Source: N/A
Listed For Rent
$1,600
Dec 9, 2017
Source: N/A
ListingRemoved
$1,500
Oct 22, 2017
Source: N/A
PriceChange
$1,500
Price decreased by 3%

Market trends in Boulder

Last updated October 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$933K
$34.55KMoM
Sale-to-List Price
97.7%
0.1%MoM
Price per sq ft
$513
$19MoM
Available listings
717
31MoM
Sourced by Trulia Market Trends

Around this home

Neighborhood Overview

Old North Boulder
See Local Highlights
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

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 $1,390,900.
  • 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 buyer's market, based on recent for-sale activity.
  • What's the median sale price in Boulder?
    The median sale price in Boulder is $933K. That is up $34.55K 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.

Explore by feature - Pet Friendly

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Explore by feature - Outdoor Space

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Apartments for Rent

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Off Market Homes Near 3175 18th St

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