1645 9th St #4, Boulder, CO 80302
Property image
Property image
OFF MARKET

$692,300

Trulia Estimate
  • 2 Beds
  • 1.5 Baths
  • 1,128 sqft

1645 9th St #4, Boulder, CO 80302

Flatirons
Est. Refi. Payment $3,882/mo*
Refinance Your Home
Currently Off Market - Sold Jun 9, 2020 for $505,000

Home Value

Trulia Estimate
$692K
Since last month
Decreased$700 (-0.1%)
Since last year
Increased$7K (+1%)
Since last sale
Increased$183K (+36.3%)
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 +36% in the last 10 years
MonthEstimated value
2026
August 2026$688K
July 2026$689K
June 2026$708K
May 2026$711K
April 2026$710K
March 2026$713K
February 2026$699K
January 2026$689K
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
836 Walnut St #D, Boulder, CO
0.19
Condo
$620,000
09/30/25
2
2
1,004
854 Walnut St #D, Boulder, CO
0.18
Condo
$680,000
05/15/26
2
2
1,004
1155 Canyon Blvd #205, Boulder, CO
0.30
Condo
$750,000
06/11/26
2
1
1,138
2033 11th St #3 & 1, Boulder, CO
0.41
Condo
$510,000
04/14/26
2
2
1,317
624 Pearl St #202, Boulder, CO
0.32
Condo
$875,000
10/24/25
2
2
1,080
780 Walnut St #A, Boulder, CO
0.18
Condo
$535,000
03/16/26
1
1
818
780 Walnut St #13, Boulder, CO
0.19
Condo
$535,000
03/18/26
1
1
818
402 Hapgood St, Boulder, CO
0.43
Condo
$795,000
11/24/25
2
2
1,221
625 Pearl Street #23, Boulder, CO
0.41
Condo
$510,000
07/31/26
2
1
748
812 Walnut St #F, Boulder, CO
0.19
Condo
$1,300,000
06/18/26
2
2
1,691

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
745 Arapahoe Ave #202, Boulder, CO 80302
0.10
$725,000
3
2
1,224
For Sale
715 Arapahoe Ave #2, Boulder, CO 80302
0.11
$735,000
2
2
1,227
For Sale
944 Arapahoe Ave #B, Boulder, CO 80302
0.07
$2,962,200
3
3
2,685
Off Market
944 Arapahoe Ave #A, Boulder, CO 80302
0.09
$2,300,000
3
3
2,767
Recently Sold
635 Arapahoe Ave, Boulder, CO 80302
0.15
-
4
4.5
5,604
Off Market
780 Walnut St #A, Boulder, CO 80302
0.18
$535,000
1
1
818
Recently Sold
836 Walnut St #B, Boulder, CO 80302
0.18
$565,000
1
1
959
For Sale
905 Grandview Ave, Boulder, CO 80302
0.11
$952,200
2
1
1,056
Off Market
854 Walnut St #D, Boulder, CO 80302
0.18
$680,000
2
2
1,004
Recently Sold
836 Walnut St #A, Boulder, CO 80302
0.18
$585,000
2
2
959
For Sale
836 Walnut St #D, Boulder, CO 80302
0.19
$614,600
2
2
1,004
Off Market
623 Marine St, Boulder, CO 80302
0.16
$1,176,000
4
2.5
2,659
Recently Sold

Local Information

  • Map ViewExplore the area around 1645 9th St #4.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Condo
Year Built
1979
Living Area
1,128 sqft
Price/Sqft
$614
Parking
Garage

About this House

Awesome treehouse feeling in an amazing location. This 2 bedroom/2 bathroom townhouse-style condo is tucked in a private setting on the west side of 9th Street. It is part of a small, 6 unit complex. Completely updated kitchen with granite counters, maple cabinets and stainless appliances, chic bathrooms, skylights, wood burning fireplace, wood floors, new carpet, new paint, new hot water heater, laundry room, open floor plan, great light, and a carport. Central location cannot be beat!
1645 9th St #4, Boulder, CO 80302 is a 2 bedroom, 2 bathroom, 1,128 sqft condo in Flatirons, built in 1979. It last sold for $505,000 on Jun 9, 2020. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $692,300, with a rent estimate of $3,392/month.

Home Details for 1645 9th St #4

Interior Features

Heating & Cooling
Heating: Forced AirHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 3
Interior Details
Number of Rooms: 4
Appliances & Utilities
DishwasherDryerMicrowaveRefrigeratorWasher
Fireplace & Spa
Fireplace

Property Information

Year Built
Year Built: 1979Year Updated: 1979
Property Type / Style
Property Type: Condo

Exterior Features

Exterior Home Features
Exterior: Stucco
Parking & Garage
GarageParking: Carport, Garage

Community

Units in Building: 1

Price and Tax history

DateEventPrice
Jun 9, 2020
Source: N/A
Sold
$505,000
May 3, 2019
Source: Agent Provided
ListingRemoved
$699,000
Feb 8, 2019
Source: Agent Provided
Listed For Sale
$699,000
Sep 6, 2018
Source: Agent Provided
ListingRemoved
$749,000
Jul 13, 2018
Source: Agent Provided
PriceChange
$749,000
Price decreased by 3%

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

Flatirons
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Flatirons

At least 4 Trulia users voted on each feature.

  • 100 % Say it's walkable to restaurants

  • 100 % Say parking is easy

  • 89 % Say it's dog friendly

  • 86 % Say there's holiday spirit

  • 86 % Say people would walk alone at night

  • 83 % Say it's walkable to grocery stores

  • 80 % Say it's quiet

  • 80 % Say yards are well-kept

  • 75 % Say there are sidewalks

  • 75 % Say streets are well-lit

  • 71 % Say they plan to stay for at least 5 years

  • 63 % Say there's wildlife

  • 61 % Say neighbors are friendly

  • 57 % Say kids play outside

  • 50 % Say car is needed

  • 50 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Nancypautsch
    "This is a dog friendly neighborhood. Several neighbors have dogs that they walk which is fun to see. We don’t presently have dogs, but we always had one to two dogs with our three kids as they were growing up. Pets definitely are park of a neighborhood community. "
    0
    Flag
  • Meganelizabethfettig
    "It’s close to the creek the park and roads that go up mountain roads but I don’t like hearing the traffics from Canyon. It also feels claustrophobic to me but I’m a mountain girl."
    1
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 1645 9th St #4

  • What is 1645 9th St #4 estimated to be worth?
    Trulia's estimated value for 1645 9th St #4 in Boulder, CO is $692,300.
  • What is the price history for 1645 9th St #4?
    1645 9th St #4 in Boulder, CO last sold for $505,000 in June 2020.
  • 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 1645 9th St #4 have laundry facilities?
    Yes, 1645 9th St #4 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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