721 9th St

Boulder, CO 80302

$2,609,700
Last Sold Price
4
Beds
2,793 Sq. Ft.
$934 / Sq. Ft.
2,793
Sq. Ft.
$934
per Sq. Ft.
Sold 12/12/25Virtual Tour
Sold 12/12/25Virtual Tour

Description

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...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.
  1. Listed by John McElveen • milehimodern - Boulder • 3038187500

Amenities

  • Additional Parking
  • Air Conditioning
  • Balcony
  • Common Outdoor Space
  • Dryer
  • Dual Closet
  • Forced Air
  • Formal Dining Room
LISTING UPDATED: 12/12/2025 01:18 PM

Property Details for 721 9th Street

StatusSold
MLS #1033886
Days on Compass214
Taxes$13,355 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential-Detached
Year Built1911
Lot Size0.29 AC / 12,525 SF
CountyBoulder County

Location

Listing Courtesy of milehimodern - Boulder, John McElveen

Sold By 8z Real Estate, Karen Straus

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Virtual Tour

Building Information for 721 9th Street

Stories2Year Built1911Building Size-Lot Size0.29 AC / 12,525 SF

Payment Calculator

$13,832 per month

30 year fixed, 6.15% Interest

Principal and Interest

$12,719

Property Taxes

$1,113

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 721 9th Street

Summary
Location and General Information
  • Road Access 2: City Street
  • Longitude and Latitude: -105.28228, 40.00104
  • Latitude: 40.00
  • Longitude: -105.28
  • Elementary School District: Boulder Valley Dist RE2
  • Middle Or Junior School District: Boulder Valley Dist RE2
Parking
  • Garage SqFt: 240
  • Garage Type 1: No
  • # of Garage Spaces 1: 1
  • # of Garage Spaces 3: Yes
  • Parking Features: Garage Door Opener, Alley Access
Taxes and HOA Information
  • Tax Information: No
  • Tax Year: 2024
  • Tax Annual Amount: $13,355
  • Parcel Number: R0001029
Property
Lot Information
  • Lot Improvements: Curbs, Gutters, Sidewalks, Fire Hydrant within 500 Feet, Lawn Sprinkler System, Wooded, Level
  • Lot Size Area: 12,525.00
  • Lot Size Units: Square Feet
  • Has Irrigation Water Rights: No
  • Has Improvements: No
  • Vegetation: Deciduous Trees
Property and Assessments
  • Total Finished Area Source: Other
  • Total Finished Area Units: Square Feet
  • Living SqFt: 2170
  • Above Grade Finished Area Units: Square Feet
  • Sq Ft Apx: 623
  • Below Grade Finished Area Units: Square Feet
  • Total Finished Area: 2793
  • Location Description 2: No
  • Pano Url Position: 1
  • Are Ditches Active: No
  • Security Features: Smoke Detector(s)
  • New Construction YN: No
  • Property Styles: 2
  • Levels: Two
  • Home Warranty YN: No
Utilities
  • Cooling: Yes
  • Utilities 1: No
  • Electric: Electric, Xcel
  • Gas: Natural Gas, Xcel
  • Sewer: City Sewer
  • Green Energy Efficient: Southern Exposure
  • Heating YN: Yes
Interior and Exterior Features
Exterior Features
  • Exterior Features: Lighting
  • Flooring: Wood Floors
Interior Features
  • ViewYN: Yes
  • Interior Features: Study Area, High Speed Internet, Kitchen Island, Beamed Ceilings
  • Laundry Features: Washer/Dryer Hookups
  • Spa YN: No
  • Window Features: Window Coverings, Wood Frames, Double Pane Windows
  • Fireplaces 1: Living Room
  • All Bedrooms Conform: Yes
  • Full Bathrooms: 2
  • Half Bathrooms: 0
  • Bathrooms Total Decimal: 4.25
  • Rough-in Bathrooms: 0
  • Three Quarters Bathrooms: 3
  • Baths Full Additional: 0
  • Baths Full Basement: 0
  • Baths Half Additional: 0
  • Baths Half Basement: 0
  • Baths Three Quarters Additional: 1
  • Baths Three Quarters Basement: 1
  • Baths Three Quarters Lower: 0
  • Baths Three Quarters Upper: 1
  • Main Level Bathrooms: 1
Living Room
  • Living Room Level: Main
  • Living Room Length: 35
  • Living Room Width: 14
  • Living Room Area: 490
  • Living Room Floor Covering: Wood Floor
Family Room
  • Has Family Room: No
Kitchen
  • Kitchen Level: Main
  • Kitchen Length: 18
  • Kitchen Width: 16
  • Kitchen Area: 288
  • Kitchen Floor Covering: Wood Floor
Dining Room
  • Dining Room Level: Main
  • Dining Room Length: 18
  • Dining Room Width: 10
  • Dining Room Area: 180
  • Dining Room Floor Covering: Wood Floor
Master Bedroom
  • Primary Bedroom Level: Upper
  • Primary Bedroom Length: 11
  • Primary Bedroom Width: 17
  • Primary Bedroom Area: 187
  • Primary Bedroom Floor Covering: Wood Floor
Bedroom 2
  • Bedroom 2 Level: Upper
  • Bedroom 2 Length: 11
  • Bedroom 2 Width: 17
  • Bedroom 2 Area: 187
  • Bedroom 2 Floor Covering: Wood Floor
Bedroom 3
  • Bedroom 3 Level: Upper
  • Bedroom 3 Length: 13
  • Bedroom 3 Width: 10
  • Bedroom 3 Area: 130
  • Bedroom 3 Floor Covering: Wood Floor
Bedroom 4
  • Bedroom 4 Level: Basement
Laundry Room
  • Laundry Room Length: 15
  • Laundry Room Width: 12
  • Laundry Room Floor Covering: Luxury Vinyl
Study
  • Study Length: 10
  • Study Width: 12
  • Study Level: Main
  • Study Floor Covering: Luxury Vinyl
Rental
Rental Information
  • Lease Sq Ft Unit: Square Feet
  • Horse YN: No

Property History for 721 9th Street

DateEvent & SourcePriceAppreciation
Dec 12, 2025

Sold (Public Record)

Public Record #1922791453

$2,609,700

+7.2% / yr

Aug 24, 2012

Sold (Public Record)

Public Record #337470040

$1,034,000

-1.4% / yr

Feb 14, 2007

Sold (Public Record)

Public Record #214746003

$1,119,000

+66.5% / yr

Jul 15, 2006

Sold (Public Record)

Public Record #199304044

$830,000

+7.6% / yr

Apr 20, 2004

Sold (Public Record)

Public Record #133789167

$705,000

+13.1% / yr

Dec 27, 2002

Sold (Public Record)

Public Record #106639087

$600,000—
DateEvent & SourcePrice
12/12/2025

Sold (Public Record)

Public Record #1922791453

$2,609,700

+7.2% / yr

08/24/2012

Sold (Public Record)

Public Record #337470040

$1,034,000

-1.4% / yr

02/14/2007

Sold (Public Record)

Public Record #214746003

$1,119,000

+66.5% / yr

07/15/2006

Sold (Public Record)

Public Record #199304044

$830,000

+7.6% / yr

04/20/2004

Sold (Public Record)

Public Record #133789167

$705,000

+13.1% / yr

12/27/2002

Sold (Public Record)

Public Record #106639087

$600,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 721 9th Street

Taxable ValueLand$109,083Additions$42,880Total$151,963
Tax Record2024$13,355 ($1,113 / month)
Home Facts
Beds4Baths4.2Total Finished SqFt2,759 SqFtAbove Grade Finished SqFt2,187 SqFtFinished Basement SqFt572 SqFtStories2Lot Size12,545 SqFtStyleSingle Family ResidenceYear Built1911Year Renovated1990Zoning1112CountyBOULDERAPN1461-36-4-18-006

Schools near 721 9th Street

This home is within Boulder Valley Re 2 School District.
Rating
School
Type
Grades
Distance
Flatirons Elementary School
Public - K to 5
Manhattan Middle School Of The Arts And Academics
Public - 6 to 8
Boulder High School
Public - 9 to 12
University Hill Elementary School
Public - PK to 5
Rating
School
Distance
Flatirons Elementary School
PublicK to 5

Manhattan Middle School Of The Arts And Academics
Public6 to 8

Boulder High School
Public9 to 12

University Hill Elementary School
PublicPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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Listing Courtesy of milehimodern - Boulder, John McElveen

Based on information from one of the following Multiple Listing Services: REColorado, Summit MLS Inc (a wholly owned subsidiary of Summit Association of REALTORS), Pikes Peak Association of Realtors, IRES, Grand Junction Area REALTOR, CREN, Vail Board of REALTORS and Grand County Board of REALTORS . Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by REColorado, Summit MLS Inc (a wholly owned subsidiary of Summit Association of REALTORS), Pikes Peak Association of Realtors, IRES, Grand Junction Area REALTOR, CREN, Vail Board of REALTORS and Grand County Board of REALTORS is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.