Public Remarks: Nestled on a rare quadruple lot just steps from Chautauqua Park, this 1911 Craftsman-style home offers breathtaking views and thoughtful modern updates. Refined interiors and exquisite attention to detail combined with expansive outdoor spaces, breathtaking views of the Flatirons and Mt Sanitas, and proximity to iconic outdoor recreation and cultural opportunities make this home an exceptional Boulder retreat. This property includes 3 buildings on an oversized 1/4 acre lot, creating a small compound in the city. The historic main house offers light-filled living spaces with 9' ceilings, stained white oak floors, a gourmet kitchen with generous island and a picturesque dining room with giant picture windows and indoor-outdoor connectivity. The pristine primary suite offers its own sanctuary with wired sound system, double closets, ensuite bathroom and dual closets. A finished walkout lower level adds flexibility with guest quarters, storage and a mudroom. The detached guest house allows for additional flexibility with a main level studio space, 3/4 bathroom and upper level bedroom with a private balcony, while the original carriage house - insulated and electrified - offers a serene, creative space. Escape to the lush, landscaped, private backyard offering a flagstone patio, fruit trees, raised garden beds, and an expansive, level sports field ideal for a variety of recreational activities or large-scale entertaining. With ample parking, a single car garage + 2 additional parking spaces with an EV charger, and potential for future development, this is a must-see property and a rare opportunity in one of Boulder's most sought-after enclaves.
Stunning renovated Craftsman style home set on a large lot that feels like a park. The main house has 4BDR/ 3.5 baths plus a detached studio with 3/4 bath and 675 Square feet-NOT INCLUDED in sq.ft. total. Enjoy the gourmet kitchen with granite counters. This charming home has views of the Flatirons and Mt. Sanitas. Beautiful hardwood floors throughout, stunning wall of windows off kitchen/nook area.Beautiful dining room adjacent the kitchen and living room. Extensive landscaping.A MUST SEE HOME!
IRES as Distributed by MLS Grid #517113
Feb 23, 2007
Sold
$1,119,000
$401/sq ft
Jan 5, 2007
Listed
$1,169,000
$419/sq ft
+13
Public Remarks
Stunningly renovated Chautauqua charmer blends character w/modern hi-end amenities. Sits back on rare double lot, steps from park. New walnut-stained floors, walls of windows w/panoramic views of Flatirons & Sanitas, open floorplan, gourmet kitchen w/granite counters & 11' island, 6-burner range. LR w/fireplace & sep. DR. New redwood deck & extensive landscaped yd. Sep. 650 sq. ft. 2-story heated studio (included in total SF) w/new bath. Indoor/outdoor living. Kid friendly, entertainer's dream.
IRES as Distributed by MLS Grid #494894
Jul 19, 2006
Sold
$830,000
$297/sq ft
Jun 1, 2006
Listed
$829,000
$297/sq ft
IRES as Distributed by MLS Grid #388416
Apr 16, 2004
Sold
$705,000
$252/sq ft
Sep 9, 2003
Listed
$714,900
$256/sq ft
IRES as Distributed by MLS Grid #354372
Dec 19, 2002
Sold
$600,000
$215/sq ft
Oct 10, 2002
Listed
$599,000
$214/sq ft
IRES as Distributed by MLS Grid #219500
Mar 13, 2000
Sold
$515,000
$184/sq ft
Jan 5, 2000
Listed
$499,000
$179/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$13,984 (+4.7%)
$109,450 + $37,213
$146,663
2024
$13,355 (+1.8%)
$109,450 + $37,213
$146,663
2023
$13,123 (+14.2%)
$109,083 + $42,880
$151,963
2022
$11,491 (+4.9%)
$112,768 + $42,880
$155,648
2021
$10,958 (+5.5%)
$95,549 + $28,196
$123,745
2020
$10,391 (+1.6%)
$98,298 + $29,008
$127,306
2019
$10,232 (+8.5%)
$93,451 + $25,919
$119,370
2018
$9,433 (+3.2%)
$93,451 + $25,919
$119,370
2017
$9,138 (+25.5%)
$59,616 + $49,190
$108,806
2016
$7,283 (+5.6%)
$59,616 + $49,190
$108,806
2015
$6,896 (−1.2%)
$40,835 + $43,302
$84,137
2014
$6,977 (+2.3%)
$39,243 + $41,909
$81,152
2013
$6,823 (−1.7%)
$39,243 + $41,909
$81,152
2012
$6,942 (+0.9%)
$39,243 + $41,909
$81,152
2011
$6,881 (−5.8%)
$29,930 + $52,934
$82,864
2010
$7,302 (+7.1%)
$29,930 + $52,934
$82,864
2009
$6,819
$48,320 + $42,030
$90,350
Tax history for 721 9th St
Year
Property tax
Land + Additions
Assessment*
2025
$13,984 (+4.7%)
$109,450 + $37,213
$146,663
2024
$13,355 (+1.8%)
$109,450 + $37,213
$146,663
2023
$13,123 (+14.2%)
$109,083 + $42,880
$151,963
2022
$11,491 (+4.9%)
$112,768 + $42,880
$155,648
2021
$10,958 (+5.5%)
$95,549 + $28,196
$123,745
2020
$10,391 (+1.6%)
$98,298 + $29,008
$127,306
2019
$10,232 (+8.5%)
$93,451 + $25,919
$119,370
2018
$9,433 (+3.2%)
$93,451 + $25,919
$119,370
2017
$9,138 (+25.5%)
$59,616 + $49,190
$108,806
2016
$7,283 (+5.6%)
$59,616 + $49,190
$108,806
2015
$6,896 (−1.2%)
$40,835 + $43,302
$84,137
2014
$6,977 (+2.3%)
$39,243 + $41,909
$81,152
2013
$6,823 (−1.7%)
$39,243 + $41,909
$81,152
2012
$6,942 (+0.9%)
$39,243 + $41,909
$81,152
2011
$6,881 (−5.8%)
$29,930 + $52,934
$82,864
2010
$7,302 (+7.1%)
$29,930 + $52,934
$82,864
2009
$6,819
$48,320 + $42,030
$90,350
*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
0.29 Acres
Year renovated
2000
Sq. Ft.
2,759
Year built
1911
Style
Single Family Residential
County
Boulder County
APN
R0001029
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
Feb 11, 2028 • Active
Hvac / solar water heater / wood burning
HVAC
Plumbing
Water heater
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: 1
Garage: Yes
Garage Spaces: 1
Parking Features: Garage Door Opener, Alley Access
Interior
Virtual Tour Information
Virtual Tour 1 Caption: Video Tour
Virtual Tour 1 MLS Source: IRES MLS
Bathroom Information
Bathrooms (Full): 2
Bathrooms (Half): 0
Bathrooms (Three Quarter): 3
Bedroom Information
Bedrooms Total: 4
Heating & Cooling
Cooling: Yes
Central Air
Heating: Yes
Forced Air
Interior Features
Accessibility Features: Level Lot, Main Floor Bath
Gas Range/Oven, Dishwasher, Refrigerator, Washer, Dryer, Disposal
Fireplace: Yes
Fireplace Features: Living Room
Flooring: Wood Floors
Study Area, High Speed Internet, Kitchen Island, Beamed Ceilings
Laundry Features: Washer/Dryer Hookups
Room Information
Basement: Partial
Exterior
Exterior Features
Lighting
Fencing: Wood
Patio and Porch Features: Patio, Deck
Roof: Composition
Land Information
Road Surface Type: Paved, Asphalt
Lot Information
Horse(s): No
Lot Features: Curbs, Gutters, Sidewalks, Fire Hydrant within 500 Feet, Lawn Sprinkler System, Wooded, Level
Other Structures: Storage, Carriage House
Road Frontage Type: City Street
Zoning: Rh-1
Property Information
Property Type: Residential
View: Yes
Waterfront: No
Subdivision Information
Subdivision Name: Chautauqua Heights
MLS Area Major: Boulder
Building Information
Above Grade Finished Area: 2170
Below Grade Finished Area: 623
Building Area Total: 2170
Construction Materials: Wood/Frame, Stone
Financial
Tax Information
Parcel Number: R0001029
Tax Annual Amount: 13355
Tax Year: 2024
Financial Information
Listing Terms: Cash, Conventional, VA Loan
Utilities
Utility Information
Utilities: Natural Gas Available, Electricity Available, Cable Available
Electric: Electric,Xcel
Gas: Natural Gas,Xcel
Sewer: City Sewer
Location
HOA Information
Association: No
School Information
High School District: Boulder Valley Dist RE2
Elementary School: Flatirons
Middle or Junior School: Manhattan
High School: Boulder
Location Information
Directions: Agents showing this property may enter either through the front door, or through the alley between 9th & Grant Streets. The alley is highly recommended on weekends or on busy evenings. There are two parking spaces on the property accessible from the alley. See Showing Time for access information.
Unparsed Address: 721 9th St Boulder CO 80302
Street Number: 721
Street Name: 9th
Street Suffix: St
City: Boulder
State or Province: CO
County or Parish: Boulder
Country: US
Postal Code: 80302
Coordinates: -105.28228,40.00104
Latitude: 40.00104
Longitude: -105.28228
Public facts
Beds: 4
Baths: 4.0
Sq. Ft.: 2,759
Stories: —
Lot Size: 0.29 acres
Style: Single Family Residential
Year Built: 1911
Year Renovated: 2000
County: Boulder County
APN: R0001029
Home facts updated by county records on Sep 2, 2026
Other
Miscellaneous Information
Exclusions: Seller's personal property and any staging items.
Listing Information
Attribution Contact: 3038187500
Close Price: $2,609,700
Photos Count: 40
Possible Use: Single Family
Special Listing Conditions: Private Owner
Standard Status: Closed
Listing Date Information
Close Date: Friday, December 12, 2025
Cumulative Days on Market: 214
Days on Market: 214
Listing Contract Date: Tuesday, May 13, 2025
Modification Timestamp: Friday, December 12, 2025 8:15 PM
Home Information
Direction Faces: East
Door Features: 6-Panel Doors
Levels: Two
Window Features: Window Coverings, Wood Frames, Double Pane Windows
Year Built: 1911
Green Information
Green Energy Efficient: Southern Exposure
Around this home
Schools
Flatirons Elementary School
Public K-5 • Assigned • 0.5mi
8/10
Manhattan Middle School Of The Arts And Academics
Public 6-8 • Assigned • 2.9mi
9/10
Boulder High School
Public 9-12 • Assigned • 0.9mi
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
5/10 Fire Factor
5% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 90° expected this year, 20 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 • 80302
Average low and high temperatures (°F)
37
18
45
25
54
34
54
34
60
41
74
53
81
60
78
58
70
50
62
42
49
32
47
30
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
$2.78M – $3.36M
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