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.
New construction
$6,000,000
2940 18th St, Boulder, CO 80304
3beds
4,002sqft
Single Family Residence
Built in 2026
10,261 Square Feet Lot
$-- Zestimate®
$1,499/sqft
$-- HOA
What's special
Clean linesPrivate pool courtyardLimestone hardscapingThoughtfully integrated millworkYear-round saltwater poolVaulted ceilingsArtisan tile
- 98 days |
- 313 |
- 18 |
Zillow last checked:
Listing updated:
Listed by:
R Tim Goodacre 303-817-9300,
milehimodern - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1054921
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 4
- Full bathrooms: 1
- 3/4 bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 2
Primary bedroom
- Description: Hardwood
- Features: Luxury Features Primary Bath, 5 Piece Primary Bath
- Level: Main
- Area: 255 Square Feet
- Dimensions: 15 x 17
Bedroom 2
- Description: Hardwood
- Level: Upper
- Area: 238 Square Feet
- Dimensions: 14 x 17
Bedroom 3
- Description: Hardwood
- Level: Upper
- Area: 204 Square Feet
- Dimensions: 12 x 17
Dining room
- Description: Hardwood
- Level: Main
- Area: 304 Square Feet
- Dimensions: 19 x 16
Kitchen
- Description: Hardwood
- Level: Main
- Area: 240 Square Feet
- Dimensions: 12 x 20
Laundry
- Description: Luxury Vinyl
- Level: Lower
- Area: 63 Square Feet
- Dimensions: 7 x 9
Living room
- Description: Hardwood
- Level: Main
- Area: 437 Square Feet
- Dimensions: 19 x 23
Recreation room
- Description: Luxury Vinyl
- Level: Lower
- Area: 435 Square Feet
- Dimensions: 15 x 29
Heating
- Forced Air, 2 or more Heat Sources
Cooling
- Central Air
Appliances
- Included: Gas Range, Double Oven, Dishwasher, Refrigerator, Disposal
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen, Open Floorplan, Walk-In Closet(s)
- Flooring: Wood
- Basement: Partial,Partially Finished
- Has fireplace: Yes
- Fireplace features: Gas
Interior area
- Total structure area: 2,855
- Total interior livable area: 4,002 sqft
- Finished area above ground: 2,855
Property
Parking
- Total spaces: 2
- Parking features: Garage Door Opener, Attached, Oversized
- Attached garage spaces: 2
- Details: Attached
Accessibility
- Accessibility features: Level Lot
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio
- Exterior features: Sprinkler System
- Fencing: Fenced
Lot
- Size: 10,261 Square Feet
- Features: Deciduous Trees, Level, Paved
Details
- Parcel number: R0607760
- Zoning: RES
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Single Family Residence
Materials
- Frame, Stucco
- Roof: Metal
Condition
- New construction: Yes
- Year built: 2026
Utilities & green energy
- Electric: Xcel, Photovoltaics Seller Owned
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: High Efficiency Furnace
Community & HOA
Community
- Security: Fire Sprinkler System, Fire Alarm, Security System
- Subdivision: Jos Wolffs
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $1,499/sqft
- Tax assessed value: $1,204,800
- Annual tax amount: $29,016
- Date on market: 3/27/2026
- Listing terms: Cash,Conventional
- Exclusions: SELLER'S PERSONAL PROPERTY + ALL STAGING ITEMS
- 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 |
|---|---|---|
| 3/27/2026 | Listed for sale | $6,000,000+380%$1,499/sqft |
Source:  IRES as distributed by MLS GRID #1054921 Report a problem | ||
| 3/22/2023 | Sold | $1,250,000$312/sqft |
Source: IRES as distributed by MLS GRID #980574 Report a problem | ||
| 1/13/2023 | Listed for sale | $1,250,000$312/sqft |
Source: IRES as distributed by MLS GRID #980574 Report a problem | ||
| 1/12/2023 | Listing removed | -- |
Source: IRES as distributed by MLS GRID #977933 Report a problem | ||
| 10/27/2022 | Listed for sale | $1,250,000+212.5%$312/sqft |
Source: IRES as distributed by MLS GRID #977933 Report a problem | ||
| 3/31/2021 | Sold | $400,000-55.6%$100/sqft |
Source: Public Record Report a problem | ||
| 11/12/2020 | Listing removed | $900,000$225/sqft |
Source: Colorado Landmark-Louisville #902235 Report a problem | ||
| 5/19/2020 | Listed for sale | $900,000$225/sqft |
Source: Colorado Landmark-Boulder #902235 Report a problem | ||
| 4/8/2020 | Listing removed | $900,000$225/sqft |
Source: Colorado Landmark-Boulder #902235 Report a problem | ||
| 1/20/2020 | Listed for sale | $900,000$225/sqft |
Source: Colorado Landmark-Boulder #902235 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $28,075 +1.8% | $325,296 -2% |
| 2024 | $27,588 -16.7% | $332,048 +3.9% |
| 2023 | $33,125 +337.6% | $319,453 -10.4% |
| 2022 | $7,570 -70.2% | $356,700 +305.6% |
| 2021 | $25,395 | $87,945 -69.9% |
| 2020 | $25,395 +47.2% | $291,740 |
| 2019 | $17,248 | $291,740 +46.6% |
| 2018 | $17,248 | $198,940 +264.3% |
| 2017 | $17,248 | $54,606 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.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.
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Climate risks
Neighborhood: Old North Boulder
Nearby schools
GreatSchools rating
- 4/10Columbine Elementary SchoolGrades: PK-5Distance: 0.3 mi
- 5/10Casey Middle SchoolGrades: 6-8Distance: 0.5 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 1.2 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.
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