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$6,000,000

  • For Sale
  • Active
  • Single Family
  • 3 Beds
  • 1 Full Bath
  • 3 Partial Baths
  • 4,002 Sq. Ft.
  • 2 Car Garage
  • Updated 7 days ago
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Set on a rare quarter-acre in the heart of Boulder, 2940 18th Street is a newly constructed architectural residence by Annette and Dennis Martin, designed to live as beautifully outdoors as it does within. Clean lines, open rafter eaves, and a standing seam metal roof frame a series of curated living spaces, where a south-facing great room and terrace capture natural light and views, seamlessly extending to a private pool courtyard anchored by a year-round saltwater pool, limestone hardscaping, and an outdoor kitchen. Inside, the home unfolds with an open-concept layout, vaulted ceilings, and a refined material palette-European white oak floors, custom oak cabinetry, and bespoke steel detailing throughout. The kitchen is a true centerpiece, appointed with Gaggenau and Sub-Zero appliances and striking quartzite surfaces, while thoughtfully integrated millwork enhances every space from the dining room to the primary suite and mudroom. Custom lighting from renowned international designers, artisan tile, and curated fixtures elevate the interiors with a quiet, modern luxury. Designed for both performance and longevity, the home features a HERS score of 8, a 9.24kW solar array, Tesla Powerwall battery storage, and advanced home automation. Completed in 2026, this is a rare opportunity to own a meticulously crafted, design-forward home that balances sustainability, sophistication, and seamless indoor-outdoor living.

Full Property Details for 2940 18th St

General

  • Price: $6,000,000
  • Taxes: $29,016 (2025)
  • Status: Active
  • Type: Single Family
  • Source: IRES
  • MLS ID: 1054921
  • Updated: 3/27/2026
  • Added to Site: 8 day(s) ago

Interior

  • Interior Features: Eat-In Kitchen, Open Floorplan, Walk-In Closet(s), Washer/Dryer Hookup
  • Fireplace: Yes
  • Fireplace(s): Gas
  • Appliances: Gas Range, Double Oven, Dishwasher, Refrigerator, Disposal, Fire Alarm
  • Flooring: Wood

Rooms

Bathrooms

  • Total Bathrooms: 4
  • Full Bathrooms: 1
  • 3/4 Bathrooms: 2
  • Half Bathrooms: 1
  • Main Floor Baths: 1

Bedrooms

  • Total Bedrooms: 3

Additional Information

  • Security/Safety: Fire Sprinkler System, Fire Alarm, Security System

Exterior

  • Exterior Features: Sprinkler System, Oversized Garage
  • Porch/Patio/Deck: Patio

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Garage Spaces: 2
  • Parking Features: Garage Door Opener, Attached
  • Garage Description: Attached

Location

  • Area: Boulder
  • County: Boulder
  • Subdivision: Jos Wolffs

School Information

  • School District: Boulder Valley Dist RE2
  • Elementary School: Columbine
  • Middle School: Casey
  • High School: Boulder

Heating & Cooling

  • Cooling Type: Central Air
  • Heating Type: Forced Air, 2 or more Heat Sources

Utilities

  • Gas: Yes
  • Gas: Xcel
  • Sewer: Public Sewer
  • Water: City
  • Utility Description: Natural Gas Available, Electricity Available

Structural Information

  • Architectural Style: Contemporary
  • Construction: Frame, Stucco
  • Exterior Const.: Frame, Stucco
  • Basement: Yes
  • Basement Desc.: Partial, Partially Finished
  • Roof: Metal
  • Square Feet: 4,002
  • Sq. Ft. Source: Plans
  • Living Area: 3,702 Sq. Ft.
  • Year Built: 2026

Lot Features

  • Lot Size (Acres): 0.24
  • Lot Size (Sq. Ft.): 10,261
  • Frontage: City Street
  • Street/Road Desc.: Asphalt
  • Fence: Yes
  • Lot Features: Deciduous Trees, Level, Paved
  • Potential Use: Single-Family
  • Zoning: RES
  • Fencing (Description): Fenced

Green Features

  • Energy Efficient: High Efficiency Furnace, Photovoltaic Owned

Financial Considerations

  • Tax Amount: $29,016
  • Tax Year: 2025
  • Terms: Cash, Conventional

Disclosures and Reports

  • Special Conditions: Private Owner
  • Exclusions: SELLER'S PERSONAL PROPERTY + ALL STAGING ITEMS
  • Property ID: R0607760

Listed by milehimodern - Boulder (303) 876-1073

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Listing agent

— 2940 18th St —

  • milehimodern - Boulder

    303-876-1073

3038179300

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 2940 18th St

School District:Boulder Valley School District Re-2
NameGradesDistance
Columbine Elementary School, Boulder, CO
3130 Repplier Street, Boulder, CO 80304
PK-50.3 mi
Casey Middle School
1301 High Street, Boulder, CO 80304
6-80.5 mi
Boulder High School
1604 Arapahoe Avenue, Boulder, CO 80302
9-121 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 2940 18th St Get Price Alerts and Save Property

Date
Details
Price
Change
Source
3/27/2026
Listed
$6,000,000
380%
MLS
3/22/2023
Sold
$1,250,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 2940 18th St

Year
Property Taxes
Change
Tax Assessment
Change
2025
$29,016
3%
$325,296
2%
2024
$28,075
2%
$319,453
—
2023
$27,588
-17%
$319,453
-10%
2022
$33,125
338%
$356,700
306%
2021
$7,570
—
$87,945
-70%
2021
$7,570
-70%
$291,740
—
2019
$25,006
45%
$291,740
47%
2018
$17,248
316%
$198,940
303%
2017
$4,148
—
$49,392
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 2940 18th St

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*These costs are estimates, and the interest rates assume exceptional credit standing.

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NMLS#: 1598647

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Listed by milehimodern - Boulder (303) 876-1073

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2940 18th St, Boulder, CO 80304 (MLS# 1054921) is a Single Family property with 3 bedrooms, 1 full bathroom and 3 partial bathrooms. 2940 18th St is currently listed for $6,000,000 and was received on March 27, 2026. Want to learn more about 2940 18th St? Do you have questions about finding other Single Family real estate for sale in Boulder? You can browse all Boulder real estate or contact a Coldwell Banker agent to request more information.

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