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.
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Sold 12/12/25Virtual Tour
Sold 12/12/25Virtual Tour
a view of a house with brick walls and potted plants
a picture of a house with a yard
a living room with furniture and a window
a outdoor living space with furniture and garden view
a living room with furniture and a table
a living room with furniture a flat screen tv and a fireplace
a living room with furniture and a large window
a living room with furniture and wooden floor
a dining room with furniture and a large window
a kitchen with granite countertop white cabinets and refrigerator
a kitchen with stainless steel appliances kitchen island granite countertop a stove a sink and a refrigerator
a bathroom with a sink and a mirror
a view of a bench in a back yard
a living room with furniture and a window
a bathroom with a sink and a mirror
a view of entryway
a living room with furniture and a wooden floor
a bedroom with a bed and a window
a bathroom with a sink double vanity and a mirror
a bathroom with a shower
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a bedroom with bed and window
a bathroom with a mirror and a shower
an empty room with wooden floor and windows
a view of a house with backyard
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a bathroom with a sink and a mirror
a bedroom with a bed and a view of closet
a view of a backyard of the house
a garden with trees in front of it
a view of a garden with plants
a front view of a house with a garden
a view of an empty room
a view of a dining room with furniture window and outside view
a front view of a house with a yard
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a view of a city with mountains in the background
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a view of a city

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
    P: (303)-818-7500 C: (303)-818-7500 johnmac@milehimodern.com

Property Details for 721 9th Street

Locale
Boulder
Description 1
House
LISTING UPDATED: 12/12/2025 01:16 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 / Single Family Residence
Year Built1911
Lot Size0.29 AC / 12,632 SF
CountyBoulder County
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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

Stories-Year Built1911Building Size-Lot Size0.29 AC / 12,632 SF

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$13,832 per month

30 year fixed, 6.15% Interest

Principal and Interest

$12,719

Property Taxes

$1,113

HOA Dues

$0

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Property Information for 721 9th Street

Summary
Location and General Information
  • Road Access 2: City Street
  • Latitude: 40.00
  • Longitude: -105.28
Parking
  • Garage SqFt: 240
  • Total Parking: 1.00
  • Parking Features: Garage Door Opener
Taxes and HOA Information
  • Has HOA: No
  • HOA Fee: $.00
  • Legal Description: LOTS 9-12 BLK 2 CHAUTAUQUA HEIGHTS SPLIT TO ID 1027/OWNER 7/95 ID 1027 COMB BACK HERE 3/97
  • Tax Information: No
  • HOA2 Fee Amount: $0
  • Tax Year: 2024
  • Tax Annual Amount: $13,355
  • Parcel Number: R0001029
Property
Lot Information
  • Lot Improvements: Wooded, Deciduous Trees, Level, House Faces East, Paved, Curbs, Gutters, Sidewalks, Street Light, Alley, Fire Hydrant within 500 Feet
  • Lot Size Area: 12,525.00
  • Has Irrigation Water Rights: No
  • Has Improvements: No
  • Vegetation: Wooded
Property and Assessments
  • Total Finished Area Source: Other
  • Living SqFt: 2170
  • Above Grade Finished Area Source: 2170
  • Sq Ft Apx: 623
  • Total Finished Area: 2793
  • Pano Url Position: 1
  • Property Attached YN: No
  • Are Ditches Active: No
  • New Construction YN: No
  • Levels: Two
Utilities
  • Electric: Xcel
  • Sewer: Public Sewer
  • Green Energy Efficient: Southern Exposure, Windows
Interior and Exterior Features
Exterior Features
  • Construction Materials: Frame, Stone
  • Exterior Features: Sprinkler System, Carriage House
  • Flooring: Wood
Interior Features
  • Interior Features: Wood Windows, Washer/Dryer Hookup, Kitchen Island, 6-Panel Doors, Beamed Ceilings, Full Primary Bath
  • Laundry Features: Gas Range, Dishwasher, Refrigerator, Washer, Dryer, Disposal, Fire Alarm
  • Window Features: Window Coverings
  • Fireplaces 1: Living Room
  • All Bedrooms Conform: Yes
  • Full Bathrooms: 2
  • Half Bathrooms: 0
  • Rough-in Bathrooms: 0
  • Three Quarters Bathrooms: 3
  • Baths Full Additional: 0
  • Baths Full Basement: 0
  • Baths Full Upper: 1
  • Baths Full Main: 1
  • Baths Full Lower: 0
  • Baths Half Additional: 0
  • Baths Half Basement: 0
  • Baths Half Upper: 0
  • Baths Half Main: 0
  • Baths Half Lower: 0
  • Baths Three Quarters Additional: 1
  • Baths Three Quarters Basement: 1
  • Baths Three Quarters Lower: 0
  • Baths Three Quarters Upper: 1
  • Baths Three Quarters Main: 0
Room Information
Room 1
  • RoomDescription: Wood
  • RoomLength: 11.0
  • RoomLevel: Upper
  • RoomType: Bedroom 2
  • RoomWidth: 17.0
Room 2
  • RoomDescription: Wood
  • RoomLength: 13.0
  • RoomLevel: Upper
  • RoomType: Bedroom 3
  • RoomWidth: 10.0
Room 3
  • RoomLevel: Basement
  • RoomType: Bedroom 4
Room 4
  • RoomDescription: Wood
  • RoomLength: 18.0
  • RoomLevel: Main
  • RoomType: Dining Room
  • RoomWidth: 10.0
Room 5
  • RoomDescription: Wood
  • RoomLength: 18.0
  • RoomLevel: Main
  • RoomType: Kitchen
  • RoomWidth: 16.0
Room 6
  • RoomDescription: Luxury Vinyl
  • RoomLength: 15.0
  • RoomType: Laundry
  • RoomWidth: 12.0
Room 7
  • RoomDescription: Wood
  • RoomLength: 35.0
  • RoomLevel: Main
  • RoomType: Living Room
  • RoomWidth: 14.0
Room 8
  • RoomDescription: Wood
  • RoomLength: 11.0
  • RoomLevel: Upper
  • RoomType: Primary Bedroom
  • RoomWidth: 17.0
  • Room Features: Full Primary Bath
Room 9
  • RoomDescription: Luxury Vinyl
  • RoomLength: 10.0
  • RoomLevel: Main
  • RoomType: Study
  • RoomWidth: 12.0
Rental
Rental Information
  • Horse YN: No
  • Occupant Type: Vacant

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$109,450Additions$37,213Total$146,663
Tax Record2025$13,984 ($1,165 / 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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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass makes no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of milehimodern - Boulder, John McElveen

Based on information submitted to the MLS GRID as of 12/12/2025 01:16 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.