USACOBoulderChautauqua Heights721 9Th St
Built in 1911 and beautifully remodeled and updated, this truly special property offers the storied charm of an historic home and the ease and functionality of modern living. | Image 1
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721 9th St, Boulder, CO

House

Sold

Listed price in listed location currency (USD).
$2,609,700
$2,749,000

451

MLS® IR1033886

  • Key Facts
  • Description
  • Rooms
  • Map

Key Facts

Type Single Family Residence
Levels Residential
Size 2793 sqft
Garage Yes
Taxes $13,355
Lot Size 0.29 acres
Approx. Age 1911
Avg. Price Per Sqft $984
MLS® Number IR1033886

Property Address: 721 9th St, Boulder, CO, 80302-7526

Average square foot calculated using Size range provided by listing agent.

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 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.
MLS® NumberIR1033886
Laundry LevelIn Unit
Central VacNo
FireplaceNo
Acreage0.29
Exterior
GarageYes
Approx. Age1911
BasementPartial
Driveway
Garage Spaces1
Heat
A/C
Heating Fuel

Extras

Rooms

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Laundry:12 × 15 ft
Dining Room:Main Floor10 × 18 ft
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Kitchen:Main Floor16 × 18 ft
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Living Room:Main Floor14 × 35 ft
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Office:Main Floor12 × 10 ft
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Similar Listings

Price History

Dec 12, 2025End Date
$2,609,700Sold Price

Sold

May 13, 2025List Date
$2,749,000List Price
  • Commute

Commute

Starting Address
Destination Address
721 9 Th St, Boulder, CO

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