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

1625 4th St
Boulder, CO 80302

Flatirons
  • 4 Beds
  • 2 Baths
  • 1,897 sqft

$1,411,000

Last Sold: Feb 20, 2026
$744/sqft
Est. Refi. Payment $7,700/mo*

$1,411,000

Last Sold: Feb 20, 2026
$744/sqft
Est. Refi. Payment $7,700/mo*
4 Beds
2 Baths
1,897 sqft

Local Information

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

Description

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. It is currently off market. The Trulia Estimate is $1,401,400, with a rent estimate of $4,953/month.

Home Highlights

Parking
None
Outdoor
Patio
A/C
Heating & Cooling
HOA
None
Price/Sqft
$744/sqft
Listed
170 days ago

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

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
Last check for updates: about 3 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

Price History for 1625 4th St

DatePriceEventSource
02/20/2026$1,411,000Sold
IRES as distributed by MLS GRID #1049877
02/03/2026$1,411,000PendingToActiveIRES as distributed by MLS GRID #1049877
01/25/2026$1,411,000PendingREcolorado as distributed by MLS GRID #IR1049877
01/20/2026$1,411,000Listed For SaleIRES as distributed by MLS GRID #1049877
04/12/2021ListingRemovedZillow Rental Manager
03/30/2021$2,000Listed For RentZillow Rental Manager
10/23/2019$2,000ListingRemovedN/A
10/08/2019$2,000Listed For RentN/A
07/01/2003$500,000Sold
N/A

Market trends in Boulder

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$955K
$13.33K
MoM
Sale-to-List Price
97.9%
1.0%
MoM
Price per sq ft
$503
$12
MoM
Available listings
775
41
MoM
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Property Tax and Assessment

Year2025
Tax$7,327
Assessment$1,294,101
Home facts updated by county records

Comparable Sales for 1625 4th St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.28
Single-Family Home
$1,176,000
07/08/26
4
2.5
2,659
0.23
Single-Family Home
$1,575,000
07/25/25
3
3
1,968
0.29
Single-Family Home
$1,400,000
08/04/25
2
2.5
1,788
0.10
Single-Family Home
$2,350,000
05/28/26
4
4
3,501
0.36
Single-Family Home
$1,400,000
09/12/25
2
2
1,232
0.62
Single-Family Home
$1,525,000
08/29/25
3
2
2,234
0.19
Single-Family Home
$1,815,675
08/12/25
4
4
2,583
0.42
Single-Family Home
$1,311,000
07/31/25
4
2
2,624
0.10
Single-Family Home
$2,240,000
04/14/26
3
3.5
3,711

Nearby homes

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Assigned Schools

These are the assigned schools for 1625 4th 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 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. "
  • 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."

LGBTQ Local Legal Protections

Apartments for Rent

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Homes for sale near 1625 4th St

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Off Market Homes Near 1625 4th St

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Based on information submitted to the MLS GRID as of 2026-07-09 06:38:03 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