Last Sold Price
4 beds3,145 sqft$833/sqft
780 Flagstaff Rd, Boulder, CO 80302

Description

BREATHTAKING VIEWS you will find nowhere else nestled in the PERFECT Boulder location! This Architectural Landmarked home is offered for the first time since it was custom built by preeminent architect Charles Haertling. This Incredible opportunity is located in the very desirable Grant Neighborhood bridging Chautauqua Park with Flagstaff Mtn. at the foot of Baseline Road, just above Gregory Canyon in the heart of the Chautauqua Trails system. This homes offers stunning 360-degree views of the City...BREATHTAKING VIEWS you will find nowhere else nestled in the PERFECT Boulder location! This Architectural Landmarked home is offered for the first time since it was custom built by preeminent architect Charles Haertling. This Incredible opportunity is located in the very desirable Grant Neighborhood bridging Chautauqua Park with Flagstaff Mtn. at the foot of Baseline Road, just above Gregory Canyon in the heart of the Chautauqua Trails system. This homes offers stunning 360-degree views of the City of Boulder, CU Campus, Flat Irons, Flagstaff Mountain and Chautauqua Park. It’s unusual and intense geometry asserts itself on the hillside where the mountains meet the plains. The design is centered around four cylindrical towers, reminiscent of grain silos with each tower containing functions of a home. One boasts a double-sided fireplace, another a spiral staircase with a Fireman’s Pole and the others function as utilities and storage. The center is a three story open pavilion, while each cantilevered wing has a two-story space. The top level, referred to as the “Roost” boasts a glass ceiling in the Silo for star gazing, a Sauna, space for a library and office, and an outdoor patio with views that submerge you in the magic of Boulder living. The exterior is a self-sealing copper, which has aged to a beautiful Patina. Two level deck for outdoor entertaining surrounded by a natural flowing hillside filled with native plants and trees. Mountain living in the heart of Boulder! This home raised a beautiful family very dedicated to the Boulder community and the unrivaled lifestyle Boulder has to offer. Now available to be shared with the next generations…Do not miss this once in a lifetime opportunity!
LISTING CLOSED: 11/07/2022 12:00 AM

  1. Listed by Tricia Manning • KELLER WILLIAMS AVENUES REALTY
    P: (303) 725-7856 C: (303) 725-7856 triciamanning@kw.com

Property Details for 780 Flagstaff Road

Status
MLS #
2859491
Days on Compass
54
Taxes
$11,539 / year
HOA Fees
-
Condo/Co-op Fees
-
Property Type
MLS Type
Residential / Single Family Residence
Year Built
1969
Lot Size
0.30 AC / 12,991 SF
Structure Type
House
Architectural Style
Mid-Century Modern
View
City, Meadow, Mountain(s), Plains, Valley
Levels
Three Or More
Subdivision Name
Grant
Association
No
Basement
No

Recent comparable sales

Median sold price

$2,295,000

Avg days on market

97

Sale-to-list ratio

92.7%

Boulder, CO

9 comparable properties found

$2,295,000 | 1321 9th Street, Unit A, Boulder, CO 80302
1/46
1

$2,295,000

Sold 08/03/26

4
Bedrooms
2,936
Square Feet
0.13
Acres
a view of a house with a street
1/39
2

$2,755,000

Sold 10/15/25

4
Bedrooms
3,482
Square Feet
0.44
Acres
$2,228,000 | 1327 6th Street, Boulder, CO 80302
1/48
3

$2,228,000

Sold 05/07/25

4
Bedrooms
2,915
Square Feet
0.17
Acres
$2,300,000 | 789 15th Street, Boulder, CO 80302
1/29
4

$2,300,000

Sold 07/23/26

4
Bedrooms
3,356
Square Feet
0.14
Acres
a house view with a outdoor space
1/42
5

$2,100,000

Sold 05/27/26

4
Bedrooms
3,075
Square Feet
0.13
Acres
a living room with fireplace furniture and a fireplace
1/41
6

$2,150,000

Sold 03/20/25

4
Bedrooms
2,567
Square Feet
0.15
Acres
a view of a house with a porch
1/41
7

$2,450,000

Sold 12/04/24

4
Bedrooms
3,576
Square Feet
0.15
Acres
a front view of a house with a garden and plants
1/40
8

$2,295,000

Sold 01/13/26

4
Bedrooms
3,297
Square Feet
0.22
Acres
$1,950,000 | 1741 Pine Street, Boulder, CO 80302
1/39
9

$1,950,000

Sold 05/23/25

4
Bedrooms
3,259
Square Feet
0.16
Acres

Location

Listing Courtesy of KELLER WILLIAMS AVENUES REALTY, Tricia Manning

Sold By Hatch Realty, LLC, Ashley Mendenhall

Add your commute

Virtual Tour

Building Information for 780 Flagstaff Road

Stories-Year Built1969Building Size-Lot Size0.30 AC / 12,991 SF

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$14,283 per month

30 year fixed, 6.55% Interest

Principal and Interest

$13,322

Property Taxes

$962

HOA Dues

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Property Information for 780 Flagstaff Road

Interior Area & SqFt
Interior Area & SqFt
  • Building Area Total (SqFt Total): 3145
  • Sqft Total: 3145
  • Living Area (SqFt Finished): 3145
  • Above Grade Finished Area: 3145
  • Living SqFt: 3145
  • Sq Ft Apx: 0
  • Below Grade Unfinished Area: 0
  • Area Source: Public Records
  • PSF Total: 833
  • PSF Above Grade: 833
  • PSF Finished: 833
  • Master on Main: No
  • Direction Faces: Southwest
  • Room and Floor: Living Room-Main-1, Dining Room-Main-1, Kitchen-Main-1, None-Upper-1, None-Upper-2, None-Upper-3, Bedroom-Lower-1, Bedroom-Lower-2, Bedroom-Lower-3, Loft-Upper-1, Office-Upper-1, Bonus Room-Lower-1, Bathroom Full-Lower-1, Utility Room-Lower-1, Mud Room-Lower-1, Bathroom Half-Main-1, Great Room-Main-1
  • Room Count: 17
  • Basement: None
  • Fireplaces Total: 1
  • Fireplace Features: Kitchen, Living Room, Wood Burning
  • Heating: Forced Air
  • Cooling: Central Air
  • HVAC Description: Central Air Conditioning
  • Interior Features: Ceiling Fan(s), Eat-in Kitchen, Entrance Foyer, High Ceilings, Sauna, Smoke Free
  • Security Features: Smoke Detector(s)
  • Flooring: Carpet, Concrete, Linoleum
  • Window Features: Window Coverings
  • Furnished: Unfurnished
  • Appliances: Dishwasher, Disposal, Dryer, Gas Water Heater, Microwave, Range, Refrigerator, Washer
  • Laundry Features: Sink
  • Virtual Tour URL Unbranded: https://www.780flagstaffroadboulderco.com
Bed & Bath Summary
Bedrooms
  • Bedrooms Total: 4
  • Upper Level Bedrooms: 1
  • Main Level Bedrooms: 0
  • Lower Level Bedrooms: 3
  • Basement Level Bedrooms: 0
Bathrooms
  • Bathrooms Total: 4
  • Upper Level Bathrooms: 2
  • Main Level Bathrooms: 1
  • Lower Level Bathrooms: 1
  • Basement Level Bathrooms: 0
  • Bathrooms Full: 2
  • Bathrooms Three Quarter: 0
  • Bathrooms Half: 1
  • Bathrooms One Quarter: 1
Detailed Room Info
Room 1
  • Room Type: Living Room
  • Room Level: Main
  • Room Description: Carpet
  • Room Length: 17
  • Room Width: 17
Room 2
  • Room Type: Dining Room
  • Room Level: Main
  • Room Description: Carpet
  • Room Length: 17
  • Room Width: 17
Room 3
  • Room Type: Kitchen
  • Room Level: Main
  • Room Description: Carpet
  • Room Length: 24
  • Room Width: 23
Room 4
  • Room Type: Bedroom
  • Room Level: Upper
  • Room Description: Carpet
  • Room Length: 19
  • Room Width: 20
Room 5
  • Room Type: Dining Room
  • Room Level: Upper
  • Room Description: Carpet
  • Room Length: 9
  • Room Width: 9
Room 6
  • Room Type: Bedroom
  • Room Level: Lower
  • Room Description: Other
  • Room Length: 17
  • Room Width: 18
Room 7
  • Room Type: Bedroom
  • Room Level: Lower
  • Room Description: Laminate
  • Room Length: 17
  • Room Width: 17
Room 8
  • Room Type: Bedroom
  • Room Level: Lower
  • Room Description: Other
  • Room Length: 18
  • Room Width: 17
Room 9
  • Room Type: Loft
  • Room Level: Upper
  • Room Description: Carpet
  • Room Length: 18
  • Room Width: 18
Room 10
  • Room Type: Office
  • Room Level: Upper
  • Room Description: Carpet
  • Room Length: 9
  • Room Width: 8
Room 11
  • Room Type: Bonus Room
  • Room Level: Lower
  • Room Length: 17
  • Room Width: 18
Room 12
  • Room Type: Bathroom Full
  • Room Level: Lower
  • Room Length: 10
  • Room Width: 9
Room 13
  • Room Type: Bathroom Half
  • Room Level: Upper
  • Room Description: Vanity area with sink in dressing area
  • Room Length: 3
  • Room Width: 3
Room 14
  • Room Type: Utility Room
  • Room Level: Lower
  • Room Length: 10
  • Room Width: 9
Room 15
  • Room Type: Mud Room
  • Room Level: Lower
  • Room Length: 16
  • Room Width: 13
Room 16
  • Room Type: Bathroom Half
  • Room Level: Main
  • Room Length: 9
  • Room Width: 9
Room 17
  • Room Type: Great Room
  • Room Level: Main
  • Room Description: Grand Entry
  • Room Length: 17
  • Room Width: 20
Parking
Parking
  • Parking Features: Gravel, Storage
  • Attached Garage: No
  • Parking Type: Carport (Attached)
  • Parking Description: Carport (Attached)-3
  • Parking Details: 3
  • Parking Total: 1
  • Garage Spaces: 0
  • Offstreet Spaces: 0
  • Parking Count: 3
  • Carport Spaces: 3
  • Reserved Spaces: 0
  • RV Spaces: 0
Association Information
Association Information
  • Association Fee Total Annual: $0
  • Association Amenities: Sauna, Trail(s)
  • Senior Community: No
Site & Location Information
School Information
  • Elementary School: Flatirons
  • Elementary School District: Boulder Valley RE 2
  • Middle Or Junior School: Manhattan
  • Middle Or Junior School District: Boulder Valley RE 2
  • High School: Boulder
  • High School District: Boulder Valley RE 2
Site & Location Information
  • Lot Size Acres: .30
  • Lot Size Square Feet: 12991
  • PSF Lot: $202
  • Lot Features: Borders National Forest, Foothills, Landscaped, Many Trees, Mountainous, Near Public Transit, Open Space, Rock Outcropping, Rolling Slope, Sloped
  • Zoning: Not County Zoned
  • Accessibility Features: House/Lot Faces SW, City Limits
  • Property Exclusions: Steinway & Sons Grand Piano but is negotiable. Seller's Personal Property and Staging Equipment.
Building Information
Green Features
  • Green Verification Count: 0
Outbuildings
  • Out Building Count: 0
  • Horse: No
Building Information
  • Builder Name: C. Haertling Architect
  • Builder Name 2: C. Haertling Architect
  • Construction Materials: Cement Siding, Concrete, Frame, Metal Siding, Other
  • Roof: Metal
  • Exterior Features: Balcony
  • Patio And Porch Features: Deck, Patio
  • Other Structures: Storage
  • Livable Structure Count: 0
Water & Utilities
Water & Utilities
  • Sewer Tap: No
  • Water Included: Yes
  • Water Source: Public
  • Utilities: Cable Available, Electricity Available, Electricity Connected, Internet Access (Wired), Natural Gas Connected, Phone Connected
  • Sewer: Public Sewer

Property History for 780 Flagstaff Road

DateEvent & SourcePriceAppreciation
Nov 7, 2022

Sold (Public Record)

Public Record #1500351332

$2,620,871
DateEvent & SourcePrice
11/07/2022

Sold (Public Record)

Public Record #1500351332

$2,620,871

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

Public Records for 780 Flagstaff Road

Taxable ValueLand$143,065Additions$22,970Total$166,035
Tax Record2025$14,551 ($1,213 / month)
Home Facts
Beds4Baths2.5Total Finished SqFt3,145 SqFtAbove Grade Finished SqFt3,145 SqFtStories2Lot Size12,992 SqFtStyleSingle Family ResidenceYear Built1969Year Renovated1969CountyBOULDERAPNR0004323

Schools near 780 Flagstaff Road

This home is within Boulder Valley Re 2 School District.
Rating
School
Type
Grades
Distance
Public - K to 5
Public - 6 to 8
Public - 9 to 12
Public - PK to 5
Rating
School
Distance
Flatirons Elementary School
PublicK to 5

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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Nearby home values

AddressSold priceBedsBathsSqftLot (Sqft)
This home: 780 Flagstaff Road, Boulder, CO 80302
$2,620,871
4
3,145
12,991
$2,100,000
4
2
12,700
2
2
2,480
25,463
$1,900,000
4
2,896
16,988
$5,762,500
5
8,202
22,651
$500
5
4,377
45,607

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim 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 seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of KELLER WILLIAMS AVENUES REALTY, Tricia Manning

Based on information submitted to the MLS GRID as of 11/07/2025 02:03 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.