Perched above Boulder at the end of a private dead-end drive, this extraordinary octagon-shaped residence rises through four levels on 10.25 forested acres. Minutes from downtown Boulder and completely removed from it. No neighbors. No noise. Just wind, birdsong, and a horizon that commands your full attention. Longs Peak & the Indian Peaks Wilderness stretching west, Boulder's city lights scattered far below to the east. Green Mountain Trail begins steps from the back door.This is a property for people who have earned their quiet. Who want to wake up in the trees, step outside into real wilderness, and still be able to reach a world-class restaurant, entertainment & shopping within minutes. It works equally well as a full-time sanctuary or an elevated second home.Inside, each level reveals a new perspective. The main level great room opens with soaring vaulted ceilings, exposed timber beams, and walls of glass that pull the ridge indoors. A sunken conversation and dining area anchors the heart of the space. The chef's kitchen is built for serious cooking, with a Viking range, Thermador refrigerator, slate tile backsplash, and custom cabinetry. The primary suite opens to a southwest-facing Juliette deck, perfect for morning coffee while taking in the views. At the crown of the home sits the Birdsnest office. Wraparound windows frame unobstructed snow-capped peaks in every direction. A wraparound deck off the main level extends the living space deep into the trees.Outside, a detached 1,500 sq ft geothermal greenhouse makes year-round food production possible. A fully owned solar array powers the entire property, true energy independence with zero compromise. A gas fire pit, horseshoe pit, and 2 fenced acres round out a property that lives as well outside as in. For the buyer who wants a home that feels like an escape every single day.
For sale
$2,595,000
5097 Flagstaff Rd, Boulder, CO 80302
4beds
5,070sqft
Single Family Residence
Built in 1989
10.25 Acres Lot
$-- Zestimate®
$512/sqft
$-- HOA
What's special
Gas fire pitSoaring vaulted ceilingsOctagon-shaped residenceFour levelsHorseshoe pitThermador refrigeratorSlate tile backsplash
- 91 days |
- 873 |
- 52 |
Zillow last checked:
Listing updated:
Listed by:
Gretchen Heine 805-722-5800,
milehimodern - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1053687
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 5
- Full bathrooms: 2
- 3/4 bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 3
Primary bedroom
- Description: Wood
- Features: 5 Piece Primary Bath
- Level: Upper
- Area: 1 Square Feet
- Dimensions: 1 x 1
Bedroom 2
- Description: Wood
- Level: Main
Bedroom 3
- Description: Wood
- Level: Main
Bedroom 4
- Description: Wood
- Level: Main
Dining room
- Description: Tile
- Level: Main
Family room
- Description: Carpet
- Level: Basement
Kitchen
- Description: Tile
- Level: Main
- Area: 1 Square Feet
- Dimensions: 1 x 1
Laundry
- Level: Lower
Living room
- Description: Wood
- Level: Main
Recreation room
- Description: Wood
- Level: Basement
Study
- Description: Wood
- Level: Upper
Heating
- Forced Air, Hot Water
Cooling
- Central Air
Appliances
- Included: Gas Range, Double Oven, Refrigerator, Bar Fridge, Microwave
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen, Cathedral Ceiling(s), Open Floorplan, Pantry, Walk-In Closet(s), Wet Bar, Beamed Ceilings
- Flooring: Wood
- Windows: Window Coverings
- Basement: Crawl Space
- Has fireplace: Yes
- Fireplace features: Gas, Family Room
Interior area
- Total structure area: 5,079
- Total interior livable area: 5,070 sqft
- Finished area above ground: 3,500
- Finished area below ground: 1,579
Video & virtual tour
Property
Parking
- Total spaces: 3
- Parking features: Attached
- Attached garage spaces: 3
- Details: Attached
Features
- Levels: Five Or More
- Stories: 5
- Patio & porch: Deck
- Exterior features: Balcony
- Spa features: Bath, Heated
- Fencing: Fenced
- Has view: Yes
- View description: Mountain(s), Plains View, Panoramic
Lot
- Size: 10.25 Acres
- Features: Wooded, Native Plants, Sloped, Rock Outcropping, Abuts Public Open Space
Details
- Parcel number: R0104657
- Zoning: F
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Single Family Residence
Materials
- Frame, Cedar
- Roof: Composition
Condition
- New construction: No
- Year built: 1989
Utilities & green energy
- Electric: Photovoltaics Seller Owned
- Sewer: Septic Tank
- Water: Well
- Utilities for property: Electricity Available, Propane
Green energy
- Energy efficient items: Southern Exposure
Community & HOA
Community
- Features: Trail(s)
- Subdivision: Walker Ranch Area
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $512/sqft
- Tax assessed value: $1,526,400
- Annual tax amount: $9,545
- Date on market: 3/12/2026
- Listing terms: Cash,Conventional
- Exclusions: SELLER'S PERSONAL PROPERTY + ALL STAGING ITEMS
- Electric utility on property: Yes
- Road surface type: Gravel
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 3/12/2026 | Listed for sale | $2,595,000+226.4%$512/sqft |
Source:  IRES as distributed by MLS GRID #1053687 Report a problem | ||
| 4/11/2001 | Sold | $795,000+759.5%$157/sqft |
Source: Public Record Report a problem | ||
| 2/17/1998 | Sold | $92,500$18/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $10,232 +1.6% | $95,400 -16.5% |
| 2024 | $10,074 +20.9% | $114,309 -1% |
| 2023 | $8,335 +4.8% | $115,417 +35.2% |
| 2022 | $7,950 +23% | $85,339 -2.8% |
| 2021 | $6,462 | $87,795 +28.6% |
| 2020 | $6,462 +27.8% | $68,276 |
| 2019 | $5,057 | $68,276 +27.1% |
| 2018 | $5,057 | $53,705 -9.5% |
| 2017 | $5,057 -10% | $59,373 +0.4% |
| 2016 | $5,617 +6.3% | $59,111 +21.5% |
| 2015 | $5,287 +21.4% | $48,635 |
| 2014 | $4,355 -58.2% | $48,635 |
| 2013 | $10,431 +2.3% | $48,635 -2.2% |
| 2012 | $10,195 -4.5% | $49,750 |
| 2011 | $10,671 +2.6% | -- |
| 2010 | $10,400 +132.9% | $56,160 |
| 2009 | $4,465 +2.6% | $56,160 -19% |
| 2008 | $4,352 -5% | $69,330 |
| 2007 | $4,582 +3.5% | $69,330 -2.7% |
| 2006 | $4,427 +10.9% | $71,280 |
| 2005 | $3,992 +0.5% | $71,280 +4.9% |
| 2004 | $3,972 +18.5% | $67,940 |
| 2003 | $3,351 +10.4% | $67,940 +32.7% |
| 2002 | $3,034 | $51,180 -90.8% |
| 2001 | -- | $559,300 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 80302
Nearby schools
GreatSchools rating
- 6/10Flatirons Elementary SchoolGrades: K-5Distance: 2.4 mi
- 5/10Manhattan Middle School Of The Arts And AcademicsGrades: 6-8Distance: 4.5 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 2.9 mi
Schools provided by the listing agent
- Elementary: Flatirons
- Middle: Manhattan
- High: Boulder
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
- Colorado
- Boulder County
- Boulder
- 80302
- 5097 Flagstaff Rd
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