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$5,500,000

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 3 Full Baths
  • 2 Partial Baths
  • 5,226 Sq. Ft.
  • 2 Car Garage
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Motivated Seller! A new standard of luxury awaits in Newlands. Designed by the visionaries at Mosaic Architects, this stunning residence is where bold design meets effortless elegance and QUALITY construction. Set on a sprawling 9,000+ SF lot, every detail of this home is intentional. The WOW factor begins the moment you head inside! The dramatic two story foyer with its striking stair hall welcomes you and entices you through the open concept living areas where THREE sets of Marvin collapsible doors open to create a seamless integration of indoor an outdoor living. White oak floors anchor the spaces while custom cabinetry, a huge pantry, a timeless palette, and top of the line appliances provide the backdrop for culinary creations as well as quick weeknight suppers. The outdoor veranda offers tons of shade in summer months to relax and read a book as well as multiple eating and conversation areas for creating memories and laughter well into the evening. The open-concept layout adapts to your lifestyle, offering comfort, flow, and refined functionality at every turn. You'll be hard pressed to find a home with more soft filtered light throughout. The Owner's Retreat with soaring ceilings and a huge patio, steam shower, and custom cabinetry with under lit vanities provide the perfect sanctuary to unwind every evening and awaken each morning. Two additional en suite bedrooms and a bonus flex room complete the upper level. Even the lower level seamlessly integrates into the home with open stair hall, high ceilings, and a large feature media wall with 81" television and under cabinet lighting. A 4th bedroom and optional 5th bedroom flex exercise room completes your experience that leaves you feeling inspired and at peace. Why settle for a dated remodel or wait 3 years to build new when you can have it all now! Brand new, intelligently crafted, and move-in ready? This is your Nirvana in Newlands. LIVE BOLDER, LOVE BOULDER!

Full Property Details for 640 Iris Ave

General

  • Price: $5,500,000
  • Taxes: $17,422 (2025)
  • Status: Active
  • Type: Single Family
  • Source: IRES
  • MLS ID: 1051046
  • Updated: 3/31/2026
  • Added to Site: 105 day(s) ago

Interior

  • Interior Features: Separate Dining Room, Cathedral Ceiling(s), Open Floorplan, Pantry, Walk-In Closet(s), Washer/Dryer Hookup, Jack and Jill Bath, Kitchen Island, High Ceilings, Beamed Ceilings
  • Fireplace: Yes
  • Fireplace(s): Two or More, Gas, Living Room
  • Appliances: Electric Range, Double Oven, Dishwasher, Refrigerator, Washer, Dryer, Microwave, Disposal, Fire Alarm
  • Flooring: Wood

Rooms

Bathrooms

  • Total Bathrooms: 5
  • Full Bathrooms: 3
  • 3/4 Bathrooms: 1
  • Half Bathrooms: 1

Bedrooms

  • Total Bedrooms: 4

Additional Information

  • Security/Safety: Fire Sprinkler System

Exterior

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

Parking

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

Location

  • Area: Boulder
  • County: Boulder
  • Subdivision: Newlands

School Information

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

Heating & Cooling

  • Cooling Type: Central Air
  • Heating Type: Zoned, Radiant

Utilities

  • Gas: Yes
  • Gas: XCEL
  • Sewer: Public Sewer
  • Water: City
  • Utility Description: Natural Gas Available, Electricity Available, Cable Available, Satellite Available, High-Speed Internet Available

Structural Information

  • Architectural Style: Contemporary
  • Builder: West Boulder Builders
  • Construction: Frame, Brick, Stucco
  • Exterior Const.: Frame, Brick, Stucco
  • Basement: Yes
  • Basement Desc.: Partially Finished, Rough-in for Radon, Sump Pump
  • Roof: Metal
  • Square Feet: 5,226
  • Sq. Ft. Source: Plans
  • Living Area: 5,019 Sq. Ft.
  • Year Built: 2024

Lot Features

  • Property View: Hills
  • Lot Size (Acres): 0.22
  • Lot Size (Sq. Ft.): 9,741
  • Frontage: City Street
  • Street/Road Desc.: Asphalt
  • Fence: Yes
  • Lot Features: Level, House Faces South, Paved, Street Light
  • Potential Use: Single-Family
  • Zoning: RL-1
  • Fencing (Description): Partial, Fenced

Green Features

  • Energy Efficient: Southern Exposure, Windows, Photovoltaic Owned

Financial Considerations

  • Tax Amount: $17,422
  • Tax Year: 2025
  • Terms: Cash, Conventional

Disclosures and Reports

  • Special Conditions: Partnership, Builder
  • Exclusions: Any Staging Items
  • Property ID: R0003614

Listed by The Agency - Boulder (720) 577-5503

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Listing agent

— 640 Iris Ave —

  • The Agency - Boulder

    720-577-5503

7203941997

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 640 Iris Ave

School District:Boulder Valley School District Re-2
NameGradesDistance
Foothill Elementary School
1001 Hawthorn Avenue, Boulder, CO 80304
K-50.2 mi
Casey Middle School
1301 High Street, Boulder, CO 80304
6-81 mi
Boulder High School
1604 Arapahoe Avenue, Boulder, CO 80302
9-121.7 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 640 Iris Ave Get Price Alerts and Save Property

Date
Details
Price
Change
Source
3/31/2026
Price Reduced
$5,500,000
-5.09%
MLS
3/05/2026
Price Reduced
$5,795,000
-1.7%
MLS
2/06/2026
Listed
$5,895,000
—
MLS
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 640 Iris Ave

Year
Property Taxes
Change
Tax Assessment
Change
2025
$17,422
81%
$182,719
67%
2024
$9,641
2%
$109,706
-3%
2023
$9,474
24%
$113,391
38%
2022
$7,627
5%
$82,136
-3%
2021
$7,273
—
$84,499
12%
2021
$7,273
13%
$75,254
—
2019
$6,450
12%
$75,254
13%
2018
$5,766
3%
$66,506
—
2017
$5,586
1%
$66,506
4%
2016
$5,539
6%
$63,983
—
2015
$5,245
22%
$63,983
28%
2014
$4,312
2%
$50,156
—
2013
$4,217
—
$50,156
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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Listed by The Agency - Boulder (720) 577-5503

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640 Iris Ave, Boulder, CO 80304 (MLS# 1051046) is a Single Family property with 4 bedrooms, 3 full bathrooms and 2 partial bathrooms. 640 Iris Ave is currently listed for $5,500,000 and was received on February 06, 2026. Want to learn more about 640 Iris Ave? 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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