3333 23rd St, Boulder, CO 80304
OFF MARKET

3333 23rd St
Boulder, CO 80304

Old North Boulder
  • 12 Beds
  • 6,369 sqft (on 6.23 acres)

$10,003,400

Trulia Estimate
as of Jun 7, 2026
Est. Refi. Payment $55,023/mo*
Refinance Your Home

$10,003,400

Trulia Estimate
as of Jun 7, 2026
Est. Refi. Payment $55,023/mo*
Refinance Your Home
12 Beds
6,369 sqft
(on 6.23 acres)

Local Information

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

Description

A truly beautiful, unique parcel of land in the heart of Boulder; yes there really is a 6 acre piece of land just a 5 minute walk to shopping plazas, 10 to 15 minute bike ride to downtown Boulder and/or the University of Colorado. Enter into a pristine oasis that just awaits your imagination. Family home dates to the 1950's; farm heritage to the late 1800's. Water rights; gorgeous views of the flatirons; wildlife and natural setting but with development potential. Let your dreams play out here.
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.

Home Highlights

Parking
Garage
Outdoor
Pool
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
Less than a day ago

Home Details for 3333 23rd St

Interior Features

Interior Details
BasementNumber of Rooms: 15
Heating & Cooling
Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 2

Exterior Features

Exterior Home Features
Roof: OtherExterior: Shingle, Wood, Brick
Pool
Pool
Parking & Garage
GarageParking: Garage Attached, Garage Detached

Property Information

Year Built
Year Built: 1959Year Updated: 2015
Property Type / Style
Property Type: Single Family HomeArchitecture: Other

Community

Units in Building: 1

Lot Information

Lot Area: 6.23 acres

Additional Information

Greenhouse

Price History for 3333 23rd St

DatePriceEventSource
04/29/2015$5,200,000ListingRemovedAgent Provided
04/27/2015$5,200,000Listed For SaleAgent Provided
02/17/2015$4,900,000Sold
N/A
06/03/2014$5,200,000PriceChange
Agent Provided
01/23/2014$5,450,000PriceChange
Agent Provided
08/03/2013$5,950,000Listed For SaleAgent Provided

Market trends in Boulder

Last updated April 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$968K
$41.67KMoM
Sale-to-List Price
96.9%
0.3%MoM
Price per sq ft
$489
$6MoM
Available listings
733
89MoM
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Property Tax and Assessment

Year2025
Tax$67,295
Assessment$11,895,000
Home facts updated by county records

Comparable Sales for 3333 23rd St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
2435 Hawthorn Avenue, Boulder, CO
0.11
Single-Family Home
$2,275,000
04/20/26
5
3.5
3,082
2165 Kincaid Pl, Boulder, CO
0.27
Single-Family Home
$2,000,000
12/05/25
7
5
4,456
2025 Hermosa Dr, Boulder, CO
0.14
Single-Family Home
$2,150,000
04/15/26
5
4
3,040
2190 Linden Ave, Boulder, CO
0.36
Single-Family Home
$3,500,000
08/11/25
4
3
3,564
2595 Glenwood Dr, Boulder, CO
0.24
Single-Family Home
$2,225,000
06/04/26
5
4.5
4,028
2167 Jordan Pl, Boulder, CO
0.21
Single-Family Home
$1,814,500
06/12/25
4
4
4,570
2201 Juniper Ct, Boulder, CO
0.15
Single-Family Home
$1,890,000
06/23/25
4
3.5
3,250
2525 Meadow Ave, Boulder, CO
0.48
Single-Family Home
$3,700,000
05/26/26
3
3.5
4,319
1650 Wilson Ct, Boulder, CO
0.76
Single-Family Home
$5,355,000
10/28/25
5
4
5,946
1525 Jennine Pl, Boulder, CO
0.65
Single-Family Home
$4,082,500
05/01/26
4
4.5
5,338

Nearby homes

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Assigned Schools

These are the assigned schools for 3333 23rd St.
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

Old North Boulder
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Old North Boulder

At least 15 Trulia users voted on each feature.

  • 100 % Say it's dog friendly

  • 95 % Say there are sidewalks

  • 93 % Say there's wildlife

  • 91 % Say it's walkable to grocery stores

  • 90 % Say there's holiday spirit

  • 88 % Say it's walkable to restaurants

  • 88 % Say parking is easy

  • 83 % Say kids play outside

  • 79 % Say it's quiet

  • 78 % Say people would walk alone at night

  • 72 % Say yards are well-kept

  • 68 % Say neighbors are friendly

  • 62 % Say they plan to stay for at least 5 years

  • 55 % Say car is needed

  • 35 % Say streets are well-lit

  • 20 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.

LGBTQ Local Legal Protections

Apartments for Rent

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Homes for sale near 3333 23rd St

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Off Market Homes Near 3333 23rd St

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Homes for rent near 3333 23rd St

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3333 23rd St, Boulder, CO 80304 is a 12 bedroom, 6,369 sqft single-family home built in 1959. 3333 23rd St is located in Old North Boulder, Boulder. This property is not currently available for sale. 3333 23rd St was last sold on Feb 17, 2015 for $4,900,000. The current Trulia Estimate for 3333 23rd St is $10,003,400.