Public Remarks: Luxurious indoor-outdoor living awaits in this stunning 4BD/4BA contemporary residence featuring sun-splashed designer interiors and spectacular outdoor space in coveted Newlands. Masterfully built by Buildwell Construction, this fine 4,473SF home brings the outdoors inside with a beautifully curated materials palette of wood, limestone and walls of glass. A gracious foyer with a coat closet and guest bath introduces soaring ceilings and European Arrigoni radiant-heat wood floors. Ahead, the great room beckons with spacious living and dining areas flanked by a limestone Element 4 fireplace and leafy views. Chefs will love the open gourmet kitchen's walnut cabinetry, oversized pantry, massive waterfall island and upscale appliances. A large family room completes the well-planned main level. A wall of folding glass doors provides seamless access to a Batu wood deck, perfect for al fresco gatherings surrounded by a built-in grill, hot tub, privacy fencing and a canopy of trees. The fenced lawn is perfect for pets, play or a swimming pool addition. The adjacent permeable grass driveway leads to a handsome detached garage. Ascend the home's striking open staircase to explore the primary suite featuring a vaulted king-size bedroom with Mt. Sanitas views, a huge private balcony, and an en suite spa bathroom with a steam shower, soaking tub and custom walk-in closet. On this level, two secondary bedrooms, including one with its own balcony, share a convenient Jack-and-Jill bathroom. Head to the lower level to find an expansive rec room, temperature-controlled wine room, extra-large laundry room, additional storage and a well-appointed guest suite. Central air conditioning ensures year-round comfort in this exceptional home nestled on a quiet street at the base of the Boulder Foothills. This superb Newlands location offers easy access to NoBo, Pearl Street and Downtown conveniences, with spectacular trails and parks, Ideal Market and Foothill Elementary School all nearby.
Modern Mountain Luxury-a private escape in the heart of Newlands! This property, designed by Corey Collier & crafted with attention to detail by Buildwell in 2015 is tucked away on a quiet street at the base of the Boulder Foothills. The main floor features an open-concept, custom walnut kitchen, living room & dining area. The living area features a Dutch designed, limestone Element 4 fireplace & European Arrigoni wood floors with radiant heat. The primary suite has soaring ceilings, sleek lines & features a spa-like bathroom with oversized, limestone steam shower & automated blinds in the bedroom that open to a gorgeous view of Mt. Sanitas. The lower level of this unique property includes the large laundry room, a multi-purpose space & a private, temperature-controlled wine room & an additional 500sf of storage. The gorgeous Batu wood deck includes a Spa Hot Tub, grilling area & spacious seating. 550 Iris is a one-of-a kind, serene property w/access to the best of Boulder.
IRES as Distributed by MLS Grid #966282
Sep 30, 2022
Listing Removed
—
Sep 7, 2022
Price Changed
$4,550,000
$1,017/sq ft
Jul 21, 2022
Price Changed
$4,650,000
$1,040/sq ft
Jun 21, 2022
Price Changed
$4,700,000
$1,051/sq ft
Jun 21, 2022
Price Changed
$4,650,000
$1,040/sq ft
Jun 7, 2022
Price Changed
$4,750,000
$1,062/sq ft
May 20, 2022
Listed
$4,900,000
$1,095/sq ft
IRES as Distributed by MLS Grid #879163
Jul 10, 2019
Sold
$3,775,000
$844/sq ft
May 23, 2019
Contingent
—
Apr 26, 2019
Listed
$3,875,000
$866/sq ft
IRES as Distributed by MLS Grid #723342
Jan 10, 2014
Sold
$625,000
$140/sq ft
Nov 21, 2013
Pending
—
Nov 19, 2013
Listed
$567,500
$127/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$20,422 (−2.5%)
$103,081 + $111,094
$214,175
2024
$20,941 (+1.8%)
$103,081 + $111,094
$214,175
2023
$20,578 (+13.2%)
$110,564 + $127,715
$238,279
2022
$18,186 (+4.9%)
$114,248 + $127,715
$241,963
2021
$17,341 (+24.2%)
$82,045 + $113,785
$195,830
2020
$13,964 (+1.6%)
$84,406 + $117,060
$201,466
2019
$13,751 (+14.0%)
$74,789 + $85,636
$160,425
2018
$12,058 (+3.2%)
$74,789 + $85,636
$160,425
2017
$11,681 (+45.0%)
$59,976 + $79,099
$139,075
2016
$8,057 (+75.2%)
$59,976 + $79,099
$139,075
2015
$4,599 (+39.0%)
$44,894 + $48,182
$93,076
2014
$3,308 (+2.2%)
$23,084 + $15,403
$38,487
2013
$3,236 (+19.2%)
$23,084 + $15,403
$38,487
2012
$2,714 (−19.0%)
$23,084 + $15,403
$38,487
2011
$3,351 (−6.0%)
$37,173 + $3,184
$40,357
2010
$3,564 (+7.1%)
$37,173 + $3,184
$40,357
2009
$3,328
$41,310 + $2,790
$44,100
Tax history for 550 Iris Ave
Year
Property tax
Land + Additions
Assessment*
2025
$20,422 (−2.5%)
$103,081 + $111,094
$214,175
2024
$20,941 (+1.8%)
$103,081 + $111,094
$214,175
2023
$20,578 (+13.2%)
$110,564 + $127,715
$238,279
2022
$18,186 (+4.9%)
$114,248 + $127,715
$241,963
2021
$17,341 (+24.2%)
$82,045 + $113,785
$195,830
2020
$13,964 (+1.6%)
$84,406 + $117,060
$201,466
2019
$13,751 (+14.0%)
$74,789 + $85,636
$160,425
2018
$12,058 (+3.2%)
$74,789 + $85,636
$160,425
2017
$11,681 (+45.0%)
$59,976 + $79,099
$139,075
2016
$8,057 (+75.2%)
$59,976 + $79,099
$139,075
2015
$4,599 (+39.0%)
$44,894 + $48,182
$93,076
2014
$3,308 (+2.2%)
$23,084 + $15,403
$38,487
2013
$3,236 (+19.2%)
$23,084 + $15,403
$38,487
2012
$2,714 (−19.0%)
$23,084 + $15,403
$38,487
2011
$3,351 (−6.0%)
$37,173 + $3,184
$40,357
2010
$3,564 (+7.1%)
$37,173 + $3,184
$40,357
2009
$3,328
$41,310 + $2,790
$44,100
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Permits
Beds
4
Baths
4
Stories
—
Lot width
—
Lot depth
—
Lot size
9,035 Sq. Ft.
Year renovated
2015
Sq. Ft.
3,957
Year built
2015
Style
Single Family Residential
County
Boulder County
APN
R0000965
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 2, 2026.
RL-1
Residential-Low 1 District
Primarily single-family detached dwelling units with some duplexes and attached dwelling units at low to very low residential densities.
Permitted uses
Include but are not limited to:
Religious facility
Housing-Multiple units
Educational/school
Recreation
Agriculture-Cropland
Park & open space
May 8, 2025 • Final
Utility
Repair or replace a burst pipe running from the house to the main utility line.
Plumbing
Aug 3, 2016 • Final
Mechanical sub-
Electrical
New construction
Plumbing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking Features
Covered Spaces: 2
Garage: Yes
Garage Spaces: 2
Parking Features: Garage Door Opener
Interior
Bathroom Information
Bathrooms (Full): 2
Bathrooms (Half): 0
Bathrooms (Three Quarter): 2
Bedroom Information
Bedrooms Total: 4
Heating & Cooling
Cooling: Yes
Central Air, Ceiling Fan(s)
Heating: Yes
Radiant
Interior Features
Gas Range/Oven, Dishwasher, Refrigerator, Washer, Dryer, Disposal
Fireplace: Yes
Fireplace Features: Insert, Living Room
Flooring: Wood Floors
Satellite Avail, High Speed Internet, Eat-in Kitchen, Separate Dining Room, Cathedral/Vaulted Ceilings, Open Floorplan, Pantry, Walk-In Closet(s), Jack & Jill Bathroom, Kitchen Island, Steam Shower, 9ft+ Ceilings
Laundry Features: Sink, Washer/Dryer Hookups, In Basement
Room Information
Basement: Full
Exterior
Exterior Features
Gas Grill, Balcony, Hot Tub Included
Fencing: Fenced, Wood
Patio and Porch Features: Patio, Deck
Roof: Metal, Rubber, Flat
Land Information
Road Surface Type: Paved, Asphalt
Lot Information
Horse(s): No
Lot Features: Curbs, Gutters, Sidewalks, Lawn Sprinkler System, Wooded, Level, Within City Limits
Road Frontage Type: City Street
Zoning: SFR
Property Information
Property Type: Residential
View: Yes
Waterfront: No
Subdivision Information
Subdivision Name: Newlands
MLS Area Major: Boulder
Building Information
Above Grade Finished Area: 2824
Below Grade Finished Area: 1649
Builder Name: Buildwell Construction
Building Area Total: 2824
Construction Materials: Wood/Frame, Stone, Wood Siding, Painted/Stained
Financial
Tax Information
Parcel Number: R0000965
Tax Annual Amount: 20941
Tax Year: 2024
Financial Information
Listing Terms: Cash, Conventional
Utilities
Utility Information
Utilities: Natural Gas Available, Electricity Available, Cable Available
Electric: Electric,Xcel Energy
Gas: Natural Gas,Xcel Energy
Sewer: City Sewer
Location
HOA Information
Association: No
School Information
High School District: Boulder Valley Dist RE2
Elementary School: Foothill
Middle or Junior School: Centennial
High School: Boulder
Location Information
Directions: North on 4th St. from downtown. East on Iris to home on the south side of the street
Unparsed Address: 550 Iris Ave Boulder CO 80304
Street Number: 550
Street Name: Iris
Street Suffix: Ave
City: Boulder
State or Province: CO
County or Parish: Boulder
Country: US
Postal Code: 80304
Coordinates: -105.28964,40.03568
Latitude: 40.03568
Longitude: -105.28964
Public facts
Beds: 4
Baths: 4.0
Sq. Ft.: 3,957
Stories: —
Lot Size: 9,035 square feet
Style: Single Family Residential
Year Built: 2015
Year Renovated: 2015
County: Boulder County
APN: R0000965
Home facts updated by county records on Sep 2, 2026
Other
Listing Information
Attribution Contact: 3033458619
Close Price: $4,000,000
Photos Count: 40
Possible Use: Single Family
Special Listing Conditions: Private Owner
Standard Status: Closed
Listing Date Information
Close Date: Friday, January 16, 2026
Cumulative Days on Market: 204
Days on Market: 204
Listing Contract Date: Friday, June 27, 2025
Modification Timestamp: Friday, January 16, 2026 11:06 PM
Home Information
Direction Faces: East
Levels: Two
Window Features: Window Coverings, Wood Frames, Double Pane Windows
Year Built: 2015
Green Information
Green Energy Efficient: Thermostat
Around this home
Schools
Foothill Elementary School
Public K-5 • Assigned • 0.3mi
9/10
Casey Middle School
Public 6-8 • Assigned • 1.0mi
5/10
Boulder High School
Public 9-12 • Assigned • 1.7mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 92° expected this year, 18 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
2/10 Air Factor
2 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Boulder, CO • 80304
Average low and high temperatures (°F)
44
22
51
29
63
40
64
40
70
47
83
57
90
64
84
60
76
53
67
45
54
33
53
33
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.5 hours in
June and 6 hours in December, placing it above the
U.S. average for solar exposure.
10.5 hrs
6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$3.68M – $4.46M
Reach more buyers when you sell with Redfin. Save up to $38,752 in fees.3 minutes to get started.