3145 23rd St, Boulder, CO 80304
Property image
Property image
OFF MARKET

$1,233,700

Trulia Estimate
  • 4 Beds
  • 2 Baths
  • 2,500 sqft

3145 23rd St, Boulder, CO 80304

Old North Boulder
Est. Refi. Payment $6,923/mo*
Refinance Your Home
Currently Off Market - Sold Dec 8, 2017 for $755,000

Home Value

Trulia Estimate
$1.23M
Since last month
Decreased$14K (-1.1%)
Since last year
Increased$62K (+5.3%)
Since last sale
Increased$479K (+63.4%)
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 +82% in the last 10 years
MonthEstimated value
2026
August 2026$1.23M
July 2026$1.25M
June 2026$1.27M
May 2026$1.26M
April 2026$1.24M
March 2026$1.22M
February 2026$1.17M
January 2026$1.14M
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
3145 Fremont St, Boulder, CO
0.10
Single-Family Home
$950,000
03/31/26
4
2
2,048
2250 Floral Dr, Boulder, CO
0.15
Single-Family Home
$1,035,000
12/12/25
4
2
2,080
2315 Forest Ave, Boulder, CO
0.07
Single-Family Home
$1,260,000
04/01/26
4
2.5
2,487
2410 Grape Ave, Boulder, CO
0.17
Single-Family Home
$1,065,000
03/27/26
3
2
2,896
2270 Grape Ave, Boulder, CO
0.13
Single-Family Home
$1,300,000
03/04/26
3
2
1,786
2901 Lorraine Court, Boulder, CO
0.22
Single-Family Home
$898,000
06/22/26
4
2
1,354
2595 Juniper Avenue, Boulder, CO
0.44
Single-Family Home
$856,000
11/13/25
4
2
2,568
3505 19th St, Boulder, CO
0.56
Single-Family Home
$795,000
06/22/26
4
2
2,342
2515 Juniper Ave, Boulder, CO
0.44
Single-Family Home
$1,300,000
06/22/26
4
2
2,288
3150 19th St, Boulder, CO
0.28
Single-Family Home
$783,000
08/07/26
3
1.5
1,095

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
3110 23rd Street, Boulder, CO 80304
0.05
$1,342,700
4
2.5
2,662
Off Market
2315 Forest Ave, Boulder, CO 80304
0.07
$1,260,000
4
2.5
2,487
Recently Sold
3100 23rd St, Boulder, CO 80304
0.06
$1,490,800
4
3
2,408
Off Market
3145 Fremont St, Boulder, CO 80304
0.10
$950,000
4
2
2,048
Recently Sold
3125 Fremont St, Boulder, CO 80304
0.10
$1,920,000
6
3
3,109
Recently Sold
3055 23rd St, Boulder, CO 80304
0.08
$985,000
-
-
-
For Sale
3035 23rd St, Boulder, CO 80304
0.10
$2,211,900
5
3.5
3,427
Off Market
2270 Grape Ave, Boulder, CO 80304
0.13
$1,300,000
3
2
1,786
Recently Sold
2085 Glenwood Dr, Boulder, CO 80304
0.13
$1,222,800
3
1.5
1,320
Off Market
2250 Grape Ave, Boulder, CO 80304
0.14
$1,316,900
4
1.5
1,716
Off Market
2465 Glenwood Dr, Boulder, CO 80304
0.16
$1,226,600
3
2
1,789
Off Market
2090 Grape Ave, Boulder, CO 80304
0.15
$2,150,400
4
3
2,818
Off Market

Local Information

  • Map ViewExplore the area around 3145 23rd 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
1959
Living Area
2,500 sqft
Price/Sqft
$493
Parking
Garage

About this House

Brick ranch home with basement in quiet neighborhood in central Boulder. Minutes from hiking, biking, restaurants, downtown. 4 bedroom/2 bath with 1 car garage and ample backyard green space. Quiet street close to an elementary school and walking distance to lots of amenities. Open floor plan with large living room and dining area off the kitchen. Large basement with legal bedroom with egressed window. Lockable shed in the backyard and multi-use workshop in the basement (perfect for a handyman or someone who likes to build/tinker). Washer, Dryer in house, DW in kitchen and baseboard heating throughout. No smoking on the premises. Lease ends June 30, 2023. Pets Negotiable.

Available immediately. No smoking allowed. One month's rent for security deposit. Tenant responsible for all utilities, snow removal, trash removal and lawn care. Pets negotiable
3145 23rd St, Boulder, CO 80304 is a 4 bedroom, 2 bathroom, 2,500 sqft single-family home in Old North Boulder, built in 1959. It last sold for $755,000 on Dec 8, 2017. More recently, it was listed as a rental in September 2022 with an asking price of $3,875 per month. That rental listing was removed on January 11, 2023. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,233,700, with a rent estimate of $4,581/month.

Home Details for 3145 23rd St

Interior Features

Interior Details
BasementNumber of Rooms: 8Types of Rooms: Family Room
Heating & Cooling
Heating: Forced AirHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 1Floors: Hardwood
Appliances & Utilities
DishwasherDryerWasher

Exterior Features

Exterior Home Features
Roof: CompositionExterior: Stone
Parking & Garage
GarageParking: Garage Detached, Off Street

Property Information

Year Built
Year Built: 1959Year Updated: 1959
Property Type / Style
Property Type: Single Family HomeArchitecture: Ranch / Rambler

Community

Units in Building: 1

Lot Information

Lot Area: 6969 sqft

Price and Tax history

DateEventPrice
Jan 11, 2023
Source: Zillow Rentals
ListingRemoved
Jan 8, 2023
Source: Zillow Rentals
PriceChange
$2,600
Price decreased by 7%
Jan 4, 2023
Source: Zillow Rentals
PriceChange
$2,800
Price decreased by 7%
Nov 17, 2022
Source: Zillow Rental Network_1 #6617267
PriceChange
$2,995
Price decreased by 9%
Oct 26, 2022
Source: Zillow Rental Network_1 #6617267
PriceChange
$3,295
Price decreased by 6%

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

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 3145 23rd St

  • What is 3145 23rd St estimated to be worth?
    Trulia's estimated value for 3145 23rd St in Boulder, CO is $1,233,700.
  • What is the price history for 3145 23rd St?
    3145 23rd St in Boulder, CO last sold for $755,000 in December 2017.
  • 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 3145 23rd St have laundry facilities?
    Yes, 3145 23rd St in Boulder, CO has in-unit laundry.
  • How big is the lot at 3145 23rd St?
    The lot at 3145 23rd St in Boulder, CO is about 0.16 acres (6,969 sq ft).

Explore by feature - Pet Friendly

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Explore by feature - Pool

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Explore by feature - Washer/dryer

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Explore by feature - Outdoor Space

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Apartments for Rent

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Off Market Homes Near 3145 23rd St

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