3143 8th Street, Boulder, CO 80304
OFF MARKET

3143 8th Street
Boulder, CO 80304

Newlands
  • 5 Beds
  • 4 Baths
  • 4,696 sqft

$3,389,700

Trulia Estimate
as of Jun 19, 2026
Est. Refi. Payment $18,428/mo*
Refinance Your Home

$3,389,700

Trulia Estimate
as of Jun 19, 2026
Est. Refi. Payment $18,428/mo*
Refinance Your Home
5 Beds
4 Baths
4,696 sqft

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

Masterfully designed by Surround Architecture, this beautifully appointed five-bedroom, four-bathroom home delivers elegant style and indoor-outdoor living in the highly sought after Newlands neighborhood in Central Boulder! Upon walking in the foyer, you will be surrounded by warmth and light and will appreciate this home's architectural detail, its well-thought-out flow and functionality, and top-of-the-line finishes. The gourmet kitchen features high ceilings with clerestory windows, a huge island with seating, marble counters, walnut cabinets, Sub-Zero fridge, Wolf gas range, and a formal dining room that opens to the covered front patio. The main floor office can also be used as a bedroom with an en suite bathroom. Warm wood accents throughout the home, hardwood floors on the main, whole-house audio system, and seven-zone radiant in-floor heating. The family room centers around a modern fireplace and media cabinet, covered patio for dining and a stunning fully fenced private backyard with a gas fire pit, professional landscaping, dog run, and a detached two-car garage. Upstairs find the spacious primary bedroom with a balcony and mountain views, a luxurious five-piece bath with free-standing tub, steam shower, bidet and two walk-in closets. Also, on this level is a loft area that overlooks the kitchen, two large secondary bedrooms, full bath, and laundry room. The basement has tall ceilings with lots of natural light, a family room with custom built-in home theater, and a guest suite with full bath. Bonus room is perfect for a home gym. Enjoy walking to North Boulder Park and Rec Center, Ideal Market and Mount Sanitas trailhead, and a quick drive or bike to all that Boulder has to offer. Attention to detail with no expense spared in this one-of-a-kind Boulder home!
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources. This description is from October 01, 2024

Home Highlights

Parking
Garage
Outdoor
Porch, Patio
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
180+ days ago

Home Details for 3143 8th Street

Interior Features

Interior Details
Basement: FinishedNumber of Rooms: 13Types of Rooms: Master Bedroom, Bedroom, Master Bathroom, Bathroom, Dining Room, Family Room, Gym, Media Room
Beds & Baths
Number of Bedrooms: 5Main Level Bedrooms: 1Number of Bathrooms: 4Number of Bathrooms (full): 3Number of Bathrooms (three quarters): 1Number of Bathrooms (main level): 1
Dimensions and Layout
Living Area: 4696 Square Feet
Appliances & Utilities
Appliances: Bar Fridge, Microwave, Range, RefrigeratorMicrowaveRefrigerator
Heating & Cooling
Heating: Radiant FloorHas CoolingAir Conditioning: Evaporative CoolingHas HeatingHeating Fuel: Radiant Floor
Fireplace & Spa
Number of Fireplaces: 1Fireplace: Family RoomHas a Fireplace
Windows, Doors, Floors & Walls
Flooring: Carpet, Tile, Wood
Levels, Entrance, & Accessibility
Stories: 2Levels: TwoFloors: Carpet, Tile, Wood
View
Has a ViewView: Mountain(s)
Security
Security: Video Doorbell

Exterior Features

Exterior Home Features
Roof: CompositionPatio / Porch: Covered, Front Porch, PatioFencing: FullExterior: Balcony, Dog Run, Private YardFoundation: Slab
Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2No CarportHas a GarageNo Attached GarageParking Spaces: 2Parking: Concrete,Dry Walled
Frontage
Not on Waterfront
Water & Sewer
Sewer: Public Sewer
Finished Area
Finished Area (above surface): 3195 Square FeetFinished Area (below surface): 1501 Square Feet

Property Information

Year Built
Year Built: 2009
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: HouseArchitecture: Contemporary
Building
Construction Materials: Frame, Wood SidingNot Attached PropertyDoes Not Include Home Warranty
Property Information
Not Included in Sale: All Personal And Staging Items, Shelving System In The Office, Washer And Dryer.Parcel Number: R0002723

Price & Status

Price
List Price: $3,950,000
Status Change & Dates
Off Market Date: Mon Jun 17 2024Possession Timing: Close Of Escrow

Active Status

MLS Status: Closed

Media

Location

Direction & Address
City: BoulderCommunity: Newlands
School Information
Elementary School: FoothillElementary School District: Boulder Valley RE 2Jr High / Middle School: CaseyJr High / Middle School District: Boulder Valley RE 2High School: BoulderHigh School District: Boulder Valley RE 2

Building

Building Area
Building Area: 4696 Square Feet

Community

Not Senior Community

HOA

No HOA

Lot Information

Lot Area: 5662.8 sqft

Listing Info

Special Conditions: Standard

Offer

Contingencies: None KnownListing Terms: Cash, Conventional

Mobile R/V

Mobile Home Park
Mobile Home Units: Feet

Business

Business Information
Ownership: Individual

Miscellaneous

BasementMls Number: 4333411Attribution Contact: janet@thebrunnerbunch.com, 303-589-5327Above Grade Unfinished Area: 3195Showing Service Name: Showing Time
Last check for updates: about 1 hour ago
Listed by Janet Brunner, (303) 589-5327
Keller Williams Action Realty LLC
Bought with: Lindsey Hughes, (720) 456-2576, Compass Colorado, LLC - Boulder
Source: REcolorado as distributed by MLS GRID, MLS#4333411

Price History for 3143 8th Street

DatePriceEventSource
07/19/2024$3,700,000Sold
REcolorado as distributed by MLS GRID #4333411
06/20/2024$3,950,000PendingREcolorado as distributed by MLS GRID #4333411
04/12/2024$3,950,000PriceChange
REcolorado as distributed by MLS GRID #4333411
03/29/2024$4,100,000Listed For SaleREcolorado as distributed by MLS GRID #4333411
05/28/2021$3,520,000Sold
IRES as distributed by MLS GRID #937658
04/15/2021$3,395,000Listed For SaleIRES as distributed by MLS GRID #937658
06/04/2008$735,000Sold
N/A
03/28/2005$550,000Sold
N/A

Market trends in Boulder

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$955K
$13.33KMoM
Sale-to-List Price
97.9%
1.0%MoM
Price per sq ft
$503
$12MoM
Available listings
775
41MoM
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$17,317
Assessment$2,797,900
Home facts updated by county records

Homeowner tools

Estimated monthly rent$7,891/mo
List your home for rent

Homes for rent near 3143 8th Street

See what comparable homes in the neighborhood are renting for.
Skip to last item
Skip to first item

Comparable Sales for 3143 8th Street

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
3080 7th St, Boulder, CO
0.08
Single-Family Home
$3,400,000
03/06/26
5
4.5
5,850
3132 5th St, Boulder, CO
0.15
Single-Family Home
$4,050,000
08/15/25
5
5
6,215
550 Iris Ave, Boulder, CO
0.30
Single-Family Home
$4,000,000
01/16/26
4
4
4,473
3119 9th St, Boulder, CO
0.07
Single-Family Home
$2,500,000
10/17/25
6
4.5
4,138
2942 4th St, Boulder, CO
0.30
Single-Family Home
$2,100,000
07/24/25
4
3.5
4,208
3265 6th St, Boulder, CO
0.19
Single-Family Home
$2,150,000
07/09/25
5
3
3,051
864 Iris Ave, Boulder, CO
0.28
Single-Family Home
$3,205,000
03/10/26
4
4
3,208
2949 10th St, Boulder, CO
0.24
Single-Family Home
$2,050,000
07/31/25
4
2.5
3,375
2925 4th St, Boulder, CO
0.34
Single-Family Home
$2,745,000
10/16/25
4
4.5
4,457

Nearby homes

Get a sense of prices in the area by checking nearby homes.
Skip to last item
Skip to first item

Assigned Schools

These are the assigned schools for 3143 8th Street.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

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

What Locals Say about Newlands

At least 11 Trulia users voted on each feature.

  • 100 % Say there's holiday spirit

  • 100 % Say it's dog friendly

  • 94 % Say it's walkable to restaurants

  • 92 % Say parking is easy

  • 92 % Say yards are well-kept

  • 91 % Say it's walkable to grocery stores

  • 83 % Say there are sidewalks

  • 83 % Say kids play outside

  • 81 % Say people would walk alone at night

  • 77 % Say there's wildlife

  • 65 % Say neighbors are friendly

  • 64 % Say they plan to stay for at least 5 years

  • 61 % Say car is needed

  • 59 % Say it's quiet

  • 50 % Say streets are well-lit

  • 50 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • susanljosephs
    "The most sought after neighborhood in Boulder, great schools, access to mountain trails, friendly neighbors, hard to find property in this neighborhood."
    1
    Flag

LGBTQ Local Legal Protections

Apartments for Rent

Skip to last item
Skip to first item

Explore by feature - Pet Friendly

Explore by feature - Garage

Explore by feature - Air Conditioning

Explore by feature - Pool

Explore by feature - Washer/dryer

Explore by feature - Outdoor Space

Homes for sale near 3143 8th Street

Skip to last item
Skip to first item

Off Market Homes Near 3143 8th Street

Skip to last item
Skip to first item
© 2026 REcolorado® All rights reserved. Certain information contained herein is derived from information which is the licensed property of, and copyrighted by, REcolorado®. Some IDX listings have been excluded from this website. Click here for more information
3143 8th Street, Boulder, CO 80304 is a 5 bedroom, 4 bathroom, 4,696 sqft single-family home built in 2009. 3143 8th Street is located in Newlands, Boulder. This property is not currently available for sale. 3143 8th Street was last sold on Jul 19, 2024 for $3,700,000 (6% lower than the asking price of $3,950,000). The current Trulia Estimate for 3143 8th Street is $3,389,700.