1635 6th St, Boulder, CO 80302
Property image
Property image
OFF MARKET

$1,560,900

Trulia Estimate
  • 3 Beds
  • 3 Baths
  • 1,968 sqft

1635 6th St, Boulder, CO 80302

Flatirons
Est. Refi. Payment $8,838/mo*
Refinance Your Home
Currently Off Market - Sold Jul 25, 2025 for $1,575,000

Home Value

Trulia Estimate
$1.56M
Since last month
Increased$6K (+0.4%)
Since last year
Decreased$5K (-0.3%)
Since last sale
Decreased$11K (-0.7%)
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 +43% in the last 10 years
MonthEstimated value
2026
August 2026$1.56M
August 2026$1.56M
July 2026$1.56M
June 2026$1.57M
May 2026$1.57M
April 2026$1.57M
March 2026$1.59M
February 2026$1.56M
January 2026$1.57M
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
0.06
Single-Family Home
$1,176,000
07/08/26
4
2.5
2,659
1625 4th St, Boulder, CO
0.23
Single-Family Home
$1,411,000
02/20/26
4
2
1,897
580 Pleasant St, Boulder, CO
0.22
Single-Family Home
$2,350,000
11/19/25
3
2.5
2,655
1128 Lincoln Pl, Boulder, CO
0.47
Single-Family Home
$1,300,000
05/01/26
4
3
1,476
465 Marine St, Boulder, CO
0.14
Single-Family Home
$2,350,000
05/28/26
4
4
3,501
610 University Ave, Boulder, CO
0.16
Single-Family Home
$1,802,500
05/04/26
5
3
3,008
1321 9th St #A, Boulder, CO
0.32
Single-Family Home
$2,295,000
08/03/26
4
3
2,936
638 Pleasant St, Boulder, CO
0.23
Single-Family Home
$1,400,000
09/12/25
2
2
1,232
911 Lincoln Pl, Boulder, CO
0.66
Single-Family Home
$1,425,000
04/14/26
5
2.5
1,926

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
611 Marine St, Boulder, CO 80302
0.05
$2,192,700
4
2
2,122
Off Market
623 Marine St, Boulder, CO 80302
0.06
$1,176,000
4
2.5
2,659
Recently Sold
600 Arapahoe Ave #1, Boulder, CO 80302
0.04
$612,400
3
1.5
917
Off Market
636 Marine St, Boulder, CO 80302
0.09
$1,995,000
6
4
3,201
Recently Sold
635 Arapahoe Ave, Boulder, CO 80302
0.08
$3,915,000
4
4.5
5,604
Off Market
512 Marine St, Boulder, CO 80302
0.11
$4,650,000
4
4.5
5,048
For Sale
541 Arapahoe Ave, Boulder, CO 80302
0.08
$2,195,000
5
4
4,069
For Sale
504 Marine St, Boulder, CO 80302
0.11
$4,955,900
4
4
4,492
Off Market
531 Arapahoe Ave, Boulder, CO 80302
0.08
$1,799,700
4
4
2,583
Off Market
610 University Ave, Boulder, CO 80302
0.16
$1,802,500
5
3
3,008
Recently Sold
632 University Ave, Boulder, CO 80302
0.17
$1,671,600
3
2
1,722
Off Market

Local Information

  • Map ViewExplore the area around 1635 6th St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1915
1,968 sqft
$793/sqft
Garage

About this House

Welcome to this turnkey and unique West Boulder duplex at 1635-1637 6th Street-a rare opportunity blending charm with high-end modern finishes. This property offers exceptional versatility: live in one unit and rent the other, use both for a live/work setup, or rent both as a full income property.The front unit features 2 beds, 2 baths, high ceilings, a sunroom, and mountain views from the primary bedroom. The second unit includes 1 bed, 1 bath, built-in dining, a large deck, and a private fenced yard. Both showcase hand-built walnut cabinetry, geometric concrete tile, quartz countertops, and modern fixtures.The shared backyard is a true urban oasis, complete with a custom steel gate, lush landscaping, and a peaceful patio with potted plants galore. Updated systems include plumbing, electrical, and a newer sewer line. Each unit has its own washer/dryer, gas fireplace, and mini-split AC. The driveway offers off-street parking for two.A finished basement serves as a personal gym and gear storage area. With 2,190 total sq ft on a 3,229 sq ft lot, this home delivers comfort and flexibility in a prime location-just steps from Pearl Street, CU, Chautauqua, and soon, the Sundance Film Festival.Whether you're an investor or owner-occupant, this is a rare chance to own a stylish, income-producing property in one of Boulder's most sought-after neighborhoods.
1635 6th St, Boulder, CO 80302 is a 3 bedroom, 3 bathroom, 1,968 sqft single-family home in Flatirons, built in 1915. It last sold for $1,575,000 on Jul 25, 2025 (1% below the $1,595,000 asking price). More recently, it was listed as a rental in September 2025 with an asking price of $4,500 per month. That rental listing was removed on September 22, 2025. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,560,900, with a rent estimate of $4,759/month.
Last check for updates: about 9 hours ago
Listed by Amy Gilbride, (720) 257-3958
Compass - Boulder
Lindsey Hughes, (720) 456-2576
Compass - Boulder
Bought with: Scott Bandoni, (970) 390-9400, LIV Sotheby's Intl Realty
Source: IRES as distributed by MLS GRID, MLS#1032811

Home Details for 1635 6th St

Interior Features

Interior Details
Basement: Partially FinishedNumber of Rooms: 5Types of Rooms: Primary Bedroom, Bedroom 2, Bedroom 3, Kitchen, Living Room
Beds & Baths
Number of Bedrooms: 3Number of Bathrooms: 3Number of Bathrooms (full): 1Number of Bathrooms (three quarters): 2Number of Bathrooms (main level): 2
Dimensions and Layout
Living Area: 1968 Square Feet
Appliances & Utilities
Utilities: Natural Gas Available, Electricity AvailableAppliances: Electric Range, Dishwasher, Refrigerator, Washer, Dryer, Trash CompactorDishwasherDryerRefrigeratorWasher
Heating & Cooling
Heating: BaseboardHas CoolingAir Conditioning: Wall/Window Unit(s),Ceiling Fan(s)Has HeatingHeating Fuel: Baseboard
Fireplace & Spa
Fireplace: Two or More, GasHas a Fireplace
Gas & Electric
Electric: XCELGas: XCELHas Electric on Property
Windows, Doors, Floors & Walls
Window: Wood Frames
Levels, Entrance, & Accessibility
Stories: 2Levels: Two
View
Has a ViewView: Hills

Exterior Features

Exterior Home Features
Roof: MetalPatio / Porch: Patio, Deck
Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2Other Parking: Off StreetNo CarportHas a GarageNo Attached GarageParking Spaces: 2Parking: Garage
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): 1621 Square Feet

Property Information

Year Built
Year Built: 1915
Property Type / Style
Property Type: ResidentialProperty Subtype: Mixed UseArchitecture: Includes Rental Unit,Contemporary
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: R0000975

Price & Status

Price
List Price: $1,595,000

Active Status

MLS Status: Sold

Location

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

Building

Building Area
Building Area: 1621 Square Feet

HOA

No HOA

Lot Information

Lot Area: 3229 sqft

Listing Info

Special Conditions: Private Owner

Offer

Listing Terms: Cash, Conventional

Miscellaneous

BasementMls Number: 1032811Attribution Contact: 720-257-3958Above Grade Unfinished Area: 1621Activation Date: Fri May 02 2025Showing Service Name: ShowingTime

Price and Tax history

DateEventPrice
Sep 22, 2025
Source: Zillow Rentals
ListingRemoved
$4,500
Sep 2, 2025
Source: Zillow Rentals
Listed For Rent
$4,500
Jul 25, 2025
Source: IRES as distributed by MLS GRID #1032811
Sold
$1,575,000
Jun 26, 2025
Source: REcolorado as distributed by MLS GRID #IR1032811
Pending
$1,595,000
Jun 14, 2025
Source: IRES as distributed by MLS GRID #1032811
PriceChange
$1,595,000
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

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 15:23:14 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 1635 6th St

  • What is 1635 6th St estimated to be worth?
    Trulia's estimated value for 1635 6th St in Boulder, CO is $1,560,900.
  • What is the price history for 1635 6th St?
    1635 6th St in Boulder, CO last sold for $1,575,000 in July 2025.
  • 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 1635 6th St have air conditioning?
    Yes, 1635 6th St in Boulder, CO has air conditioning.
  • Does 1635 6th St have laundry facilities?
    Yes, 1635 6th St in Boulder, CO has in-unit laundry.

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