1625 4th St, Boulder, CO 80302
Property image
Property image
SOLD
FEB 20, 2026

$1,402,800

Trulia Estimate
  • 4 Beds
  • 2 Baths
  • 1,897 sqft

1625 4th St, Boulder, CO 80302

Flatirons
Est. Refi. Payment $7,951/mo*
Refinance Your Home
Currently Off Market - Sold Feb 20, 2026 for $1,411,000

Home Value

Trulia Estimate
$1.4M
Since last month
Increased$6K (+0.4%)
Since last year
Increased$307K (+28%)
Since last sale
Decreased$8K (-0.6%)
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 +85% in the last 10 years
MonthEstimated value
2026
August 2026$1.4M
August 2026$1.4M
July 2026$1.4M
June 2026$1.4M
May 2026$1.41M
April 2026$1.41M
March 2026$1.42M
February 2026$1.41M
January 2026$1.41M
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
623 Marine St, Boulder, CO
0.28
Single-Family Home
$1,176,000
07/08/26
4
2.5
2,659
465 Marine St, Boulder, CO
0.10
Single-Family Home
$2,350,000
05/28/26
4
4
3,501
638 Pleasant St, Boulder, CO
0.36
Single-Family Home
$1,400,000
09/12/25
2
2
1,232
349 W Arapahoe Ln, Boulder, CO
0.10
Single-Family Home
$2,240,000
04/14/26
3
3.5
3,711
580 Pleasant St, Boulder, CO
0.30
Single-Family Home
$2,350,000
11/19/25
3
2.5
2,655
320 Pearl St, Boulder, CO
0.23
Single-Family Home
$2,100,000
08/14/26
5
4
3,034
610 University Ave, Boulder, CO
0.30
Single-Family Home
$1,802,500
05/04/26
5
3
3,008
1321 9th St #A, Boulder, CO
0.53
Single-Family Home
$2,295,000
08/03/26
4
3
2,936

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
350 Arapahoe Avenue #25, Boulder, CO 80302
0.03
$181,000
1
1
320
Off Market
350 Arapahoe Avenue #20, Boulder, CO 80302
0.04
$175,000
2
1.5
851
For Sale
350 Arapahoe Ave #24, Boulder, CO 80302
0.04
$165,000
2
1
851
For Sale
350 Arapahoe Ave #17, Boulder, CO 80302
0.05
$169,900
2
1.5
851
Off Market
370 Arapahoe Ave #C, Boulder, CO 80302
0.04
$1,850,000
3
3
1,904
For Sale
423 Marine St, Boulder, CO 80302
0.05
$2,671,800
4
3.5
2,958
Off Market
358 Arapahoe Ave #A, Boulder, CO 80302
0.07
$3,829,600
3
4.5
2,979
Off Market
401 Arapahoe Ave, Boulder, CO 80302
0.07
$1,266,700
4
2
1,680
Off Market
337 Arapahoe Ave #303, Boulder, CO 80302
0.09
$833,400
2
2
1,531
Off Market
315 Arapahoe Ave #203, Boulder, CO 80302
0.10
$846,600
2
2
1,512
Off Market
435 University Ave, Boulder, CO 80302
0.10
$3,419,200
4
5
3,340
Off Market

Local Information

  • Map ViewExplore the area around 1625 4th St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1960
1,897 sqft
$744/sqft

About this House

Two Mid-Century Modern Homes on One Lot near Downtown Boulder. Rarely does a property like this come to market in one of Boulder's most sought-after neighborhoods. Located near 4th & Marine, this legal non-conforming duplex features two separate mid-century modern homes on one lot, each with 2 bedrooms, 1 bathroom, built-in storage, and walls of natural light. The front house was built in 1946 and the back house was constructed in 1960. A shared courtyard connects the homes providing both covered and open patio space with opportunities for gardening, entertaining, or future additions. Inside, each home was designed with comfortable living in mind, offering smart layouts, storage solutions, and timeless mid-century character. Additional features include a shared laundry room and easy access to Boulder's best amenities. Just blocks from Downtown Boulder, Boulder Creek, and Eben G. Fine Park, the location combines convenience with a peaceful residential feel. With multiple paths forward-income property, multi-generational living, owner-occupant with rental, or full renovation and expansion-this property offers unparalleled flexibility and long-term potential in a prime Boulder location.
1625 4th St, Boulder, CO 80302 is a 4 bedroom, 2 bathroom, 1,897 sqft single-family home in Flatirons, built in 1960. It last sold for the $1,411,000 asking price on Feb 20, 2026. More recently, it was listed as a rental in March 2021 with an asking price of $2,000 per month. That rental listing was removed on April 12, 2021. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,402,800, with a rent estimate of $4,306/month.
Last check for updates: about 8 hours ago
Listed by Autumn White, (206) 851-7998
Compass - Boulder
Bought with: Jennifer Egbert, (303) 619-3373, milehimodern - Boulder
Source: IRES as distributed by MLS GRID, MLS#1049877

Home Details for 1625 4th St

Interior Features

Interior Details
Basement: NoneNumber of Rooms: 9Types of Rooms: Primary Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Dining Room, Kitchen, Laundry, Living Room, Study
Beds & Baths
Number of Bedrooms: 4Number of Bathrooms: 2Number of Bathrooms (full): 2Number of Bathrooms (main level): 2
Dimensions and Layout
Living Area: 1897 Square Feet
Appliances & Utilities
Utilities: Natural Gas Available, Electricity AvailableAppliances: Electric Range, Dishwasher, Refrigerator, Washer, Dryer, Microwave, DisposalDishwasherDisposalDryerLaundry: Washer/Dryer HookupMicrowaveRefrigeratorWasher
Heating & Cooling
Heating: Forced Air,Hot Water,BaseboardHas CoolingAir Conditioning: Whole House FanHas HeatingHeating Fuel: Forced Air
Gas & Electric
Has Electric on Property
Windows, Doors, Floors & Walls
Window: Window CoveringsFlooring: Wood
Levels, Entrance, & Accessibility
Stories: 1Levels: OneFloors: Wood
View
No View
Security
Security: Fire Alarm

Exterior Features

Exterior Home Features
Roof: CompositionPatio / Porch: Patio, EnclosedFencing: Partial, Fenced, Metal, Vinyl
Parking & Garage
Other Parking: NoneNo CarportNo GarageNo Attached GarageParking: None
Frontage
Road Frontage: City StreetRoad Surface Type: AsphaltNot on Waterfront
Water & Sewer
Sewer: Public Sewer
Farm & Range
Does Not Include Irrigation Water Rights
Finished Area
Finished Area (above surface): 1897 Square Feet

Property Information

Year Built
Year Built: 1960
Property Type / Style
Property Type: ResidentialProperty Subtype: Mixed Use
Building
Construction Materials: FrameNot a New ConstructionNot Attached Property
Property Information
Usage of Home: Single Family, Multi-FamilyNot Included in Sale: Seller's Personal PropertyParcel Number: R0001009

Price & Status

Price
List Price: $1,411,000Price Per Sqft: $744/sqft

Active Status

MLS Status: Sold

Media

Location

Direction & Address
City: BoulderCommunity: Flatirons
School Information
Elementary School: FlatironsJr High / Middle School: ManhattanHigh School: BoulderHigh School District: Boulder Valley Dist RE2

Building

Building Area
Building Area: 1897 Square Feet

HOA

No HOA

Lot Information

Lot Area: 5335 sqft

Listing Info

Special Conditions: Private Owner

Offer

Listing Terms: Cash, Conventional

Miscellaneous

Mls Number: 1049877Attribution Contact: 206-851-7998Above Grade Unfinished Area: 1897Activation Date: Tue Jan 20 2026Showing Service Name: ShowingTime

Price and Tax history

DateEventPrice
Feb 20, 2026
Source: IRES as distributed by MLS GRID #1049877
Sold
$1,411,000
Feb 3, 2026
Source: IRES as distributed by MLS GRID #1049877
PendingToActive
$1,411,000
Jan 25, 2026
Source: REcolorado as distributed by MLS GRID #IR1049877
Pending
$1,411,000
Jan 20, 2026
Source: IRES as distributed by MLS GRID #1049877
Listed For Sale
$1,411,000
Apr 12, 2021
Source: Zillow Rental Manager
ListingRemoved

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

Based on information submitted to the MLS GRID as of 2026-09-04 15:18:12 PDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information

Frequently asked questions about 1625 4th St

  • What is 1625 4th St estimated to be worth?
    Trulia's estimated value for 1625 4th St in Boulder, CO is $1,402,800.
  • What is the price history for 1625 4th St?
    1625 4th St in Boulder, CO last sold for $1,411,000 in February 2026.
  • 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 1625 4th St have air conditioning?
    Yes, 1625 4th St in Boulder, CO has air conditioning.
  • Does 1625 4th St have laundry facilities?
    Yes, 1625 4th St in Boulder, CO has in-unit laundry.

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