A rare opportunity in the heart of Boulder, 3055 23rd Street offers a nearly 1/3 acre, flat lot, ready for new construction. Situated on a desirable, established street, this exceptional property provides a sprawling canvas with water and sewer connections already in place. The expansive, level lot opens the door to a wide range of possibilities for creating a truly special home. The generous size of the property is particularly well suited for a spacious single-level design, making it an excellent option for those seeking the convenience of main-level living. If you've been searching for the ideal setting to build a home with room to spread out both indoors and out, this lot offers outstanding flexibility. Bring your architect and your vision, or explore the potential of the site through the sample renderings by Fanas Architecture included in the photos. These concepts highlight just two possibilities: an expansive one-level retreat with an oversized garage, or a multi-story home featuring two primary suites, a rooftop deck, and nearly 3,500 square feet of living space. Beyond the property itself, enjoy the very best of the Boulder lifestyle. World-class hiking and biking trails are moments away, with Ideal Market Shopping Center just a short walk and the dining, culture, and energy of Pearl Street only a five-minute drive. This is a rare opportunity to build a custom home on a generously sized lot in one of Boulder's most sought-after locations.
Lot/land
$985,000
3055 23rd St, Boulder, CO 80304
--beds
--baths
0.29Acres
Unimproved Land
Built in ----
0.29 Acres Lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
Flat lotExpansive level lot
- 162 days |
- 84 |
- 5 |
Zillow last checked:
Listing updated:
Listed by:
Lucy Conklin 720-470-0910,
Compass - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1049953
Facts & features
Property
Features
- Fencing: Partial
- Has view: Yes
- View description: Hills
Lot
- Size: 0.29 Acres
- Features: Evergreen Trees, Deciduous Trees, Level, Paved, Curbs, Gutters, Sidewalks, Street Light, Fire Hydrant within 500 Feet
Details
- Parcel number: R0000339
- Zoning: RES
- Special conditions: Private Owner
Utilities & green energy
- Electric: Xcel Energy
- Sewer: Public Sewer
- Water: City
- Utilities for property: Electricity Available
Community & HOA
Community
- Subdivision: Green Meadows
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Tax assessed value: $858,100
- Annual tax amount: $6,000
- Date on market: 1/21/2026
- Listing terms: Cash,Conventional
- Electric utility on property: Yes
- Road surface type: Asphalt
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 1/21/2026 | Price change | $985,000-8.4% |
Source: | ||
| 2/19/2025 | Listed for sale | $1,075,000 |
Source: | ||
| 1/30/2025 | Listing removed | $1,075,000 |
Source: | ||
| 5/29/2024 | Listed for sale | $1,075,000+26.5% |
Source: | ||
| 10/21/2021 | Sold | $850,000-5.5% |
Source: | ||
| 9/28/2021 | Pending sale | $899,000 |
Source: | ||
| 9/26/2021 | Listed for sale | $899,000 |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $24,754 +348.2% | $231,687 -20.9% |
| 2024 | $5,523 -9.9% | $292,768 +328.7% |
| 2023 | $6,130 +4.9% | $68,296 +3.5% |
| 2022 | $5,845 +15.1% | $66,011 -2.8% |
| 2021 | $5,080 | $67,911 +16.4% |
| 2020 | $5,080 +12% | $58,359 |
| 2019 | $4,534 | $58,359 +11.6% |
| 2018 | $4,534 | $52,294 -9.5% |
| 2017 | $4,534 +9.2% | $57,814 +20.6% |
| 2016 | $4,151 +5.6% | $47,951 +22.3% |
| 2015 | $3,931 +19.2% | $39,211 |
| 2014 | $3,297 +9.1% | $39,211 |
| 2013 | $3,021 +0.9% | $39,211 +8.7% |
| 2012 | $2,994 -6.9% | $36,058 |
| 2011 | $3,217 +7.1% | -- |
| 2010 | $3,004 +18.6% | $39,800 |
| 2009 | $2,532 +3.5% | $39,800 +0.6% |
| 2008 | $2,445 +1% | $39,570 |
| 2007 | $2,421 +3.9% | $39,570 +4.5% |
| 2006 | $2,330 +9.4% | $37,880 |
| 2005 | $2,130 +0.7% | $37,880 +8.6% |
| 2004 | $2,115 -4.2% | $34,870 |
| 2003 | $2,207 +10.3% | $34,870 +10.2% |
| 2002 | $2,001 | $31,630 -90.9% |
| 2001 | -- | $345,700 |
Find assessor info on the county website
Monthly payment
Estimated monthly payment$1,822
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: Old North Boulder
Nearby schools
GreatSchools rating
- 4/10Columbine Elementary SchoolGrades: PK-5Distance: 0.1 mi
- 5/10Casey Middle SchoolGrades: 6-8Distance: 0.8 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 1.3 mi
Schools provided by the listing agent
- Elementary: Columbine
- Middle: Casey
- High: Boulder
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.








