Perched above Boulder with sweeping 180-degree mountain views, this architect-designed modern retreat offers a rare combination of striking contemporary design, privacy, and functionality-just approximately 20 minutes from downtown Boulder. Designed by an architect for personal use, the home was thoughtfully crafted to maximize natural light, passive solar efficiency, and seamless indoor-outdoor living. Walls of commercial-grade glass and oversized triple sliding doors frame unobstructed views from nearly every room, while southern exposure fills the home with warmth and sunlight year-round. The chef's kitchen features Bosch appliances, an induction cooktop, Carrara marble and granite countertops, and opens effortlessly to expansive dining and living spaces designed for entertaining against a dramatic mountain backdrop. The flexible floor plan includes private en-suite bedrooms, multiple office spaces, and a remarkable studio suite with soaring 11-foot ceilings, abundant natural light, kitchenette, bathroom, 240V outlet, separate entrance, and potential for a media room, guest quarters or creative workspace. The primary suite offers a secluded deck with breathtaking views, while outdoor living is elevated with a large terraced patio, gas fire pit, and established aspen grove with underground drip irrigation. Additional features include in-floor radiant heat, metal roof, double garage with covered parking, wildfire defensible-space approval, and a peaceful mountain setting that blends modern architecture with the beauty of Colorado nature.
For sale
$2,250,000
660 S Peak Rd, Boulder, CO 80302
3beds
4,106sqft
Single Family Residence
Built in 2007
0.98 Acres Lot
$-- Zestimate®
$548/sqft
$54/mo HOA
What's special
- 35 days |
- 570 |
- 37 |
Zillow last checked:
Listing updated:
Listed by:
James Thomas 303-543-0625,
RE/MAX Alliance-Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1059116
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 5
- Full bathrooms: 3
- 1/2 bathrooms: 2
- Main level bathrooms: 3
Primary bedroom
- Description: Carpet
- Features: Full Primary Bath, Luxury Features Primary Bath
- Level: Upper
- Area: 322 Square Feet
- Dimensions: 23 x 14
Bedroom 2
- Description: Carpet
- Level: Main
- Area: 180 Square Feet
- Dimensions: 15 x 12
Bedroom 3
- Description: Carpet
- Level: Basement
- Area: 120 Square Feet
- Dimensions: 10 x 12
Great room
- Description: Wood
- Level: Main
- Area: 340 Square Feet
- Dimensions: 20 x 17
Kitchen
- Description: Wood
- Level: Main
- Area: 144 Square Feet
- Dimensions: 12 x 12
Laundry
- Description: Tile
- Level: Main
- Area: 85 Square Feet
- Dimensions: 17 x 5
Recreation room
- Description: Concrete
- Level: Basement
- Area: 380 Square Feet
- Dimensions: 20 x 19
Study
- Description: Carpet
- Level: Upper
- Area: 247 Square Feet
- Dimensions: 19 x 13
Heating
- Hot Water, Radiant
Cooling
- Ceiling Fan(s)
Appliances
- Included: Electric Range, Dishwasher, Refrigerator, Washer, Dryer, Freezer
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen, Cathedral Ceiling(s), Open Floorplan, Walk-In Closet(s), Kitchen Island
- Flooring: Wood
- Windows: Window Coverings
- Basement: Walk-Out Access
Interior area
- Total structure area: 2,902
- Total interior livable area: 4,106 sqft
- Finished area above ground: 2,902
- Finished area below ground: 0
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Attached
- Attached garage spaces: 2
- Details: Attached
Features
- Levels: Three Or More
- Stories: 3
- Patio & porch: Patio, Deck
- Has view: Yes
- View description: Mountain(s), Hills, Plains View
Lot
- Size: 0.98 Acres
Details
- Parcel number: R0024860
- Zoning: F
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Composition, Concrete
- Roof: Metal
Condition
- New construction: No
- Year built: 2007
Utilities & green energy
- Electric: Xcel
- Gas: Propane
- Sewer: Septic Tank
- Water: Well
- Utilities for property: Electricity Available, Propane
Community & HOA
Community
- Subdivision: Swiss Peaks
HOA
- Has HOA: Yes
- Services included: Snow Removal
- HOA fee: $650 annually
- HOA name: Swiss Peak
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $548/sqft
- Tax assessed value: $1,777,000
- Annual tax amount: $10,304
- Date on market: 5/14/2026
- Listing terms: Cash,Conventional
- Exclusions: Seller's personal property
- Electric utility on property: Yes
- Road surface type: Dirt
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 5/16/2026 | Listed for sale | $2,250,000+1700%$548/sqft |
Source:  IRES as distributed by MLS GRID #1059116 Report a problem | ||
| 1/22/2015 | Sold | $125,000-83.6%$30/sqft |
Source: Public Record Report a problem | ||
| 6/6/2012 | Sold | $760,000-5%$185/sqft |
Source: IRES as distributed by MLS GRID #676688 Report a problem | ||
| 4/19/2012 | Price change | $800,000-5.9%$195/sqft |
Source: RE/MAX of Boulder #1078412 Report a problem | ||
| 3/24/2012 | Listed for sale | $850,000-10%$207/sqft |
Source: RE/MAX of Boulder, Inc Report a problem | ||
| 5/1/2009 | Listing removed | $944,000$230/sqft |
Source: Listhub #627331 Report a problem | ||
| 9/28/2008 | Price change | $944,000-4.6%$230/sqft |
Source: Listhub #627331 Report a problem | ||
| 3/28/2008 | Listed for sale | $990,000+435.1%$241/sqft |
Source: NCI Report a problem | ||
| 4/6/2006 | Sold | $185,000+5.7%$45/sqft |
Source: Public Record Report a problem | ||
| 2/19/2002 | Sold | $175,000$43/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $9,990 +1.8% | $111,063 -8.1% |
| 2024 | $9,811 +23.1% | $120,787 -1% |
| 2023 | $7,971 +5.5% | $121,959 +38.2% |
| 2022 | $7,553 +11.5% | $88,279 -2.8% |
| 2021 | $6,777 | $90,820 +12.8% |
| 2020 | $6,777 +13.9% | $80,545 |
| 2019 | $5,950 | $80,545 +12.1% |
| 2018 | $5,950 | $71,856 -9.5% |
| 2017 | $5,950 -6.9% | $79,441 +3% |
| 2016 | $6,388 +6.1% | $77,124 +27% |
| 2015 | $6,021 +21.1% | $60,727 |
| 2014 | $4,971 -16.8% | $60,727 |
| 2013 | $5,975 +7.6% | $60,727 -17.4% |
| 2012 | $5,555 +18.9% | $73,550 |
| 2011 | $4,674 +6.8% | -- |
| 2010 | $4,376 -2.3% | $61,690 |
| 2009 | $4,479 +165% | $61,690 -16.8% |
| 2008 | $1,690 -42% | $74,120 +158% |
| 2007 | $2,914 +4.3% | $28,730 -31.7% |
| 2006 | $2,793 +5.1% | $42,050 |
| 2005 | $2,656 +0.6% | $42,050 +3.6% |
| 2004 | $2,641 +4.9% | $40,600 |
| 2003 | $2,519 +10.3% | $40,600 |
| 2002 | $2,285 | -- |
| 2001 | -- | $133,000 |
Find assessor info on the county website
Monthly payment
Est. payment$--/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: 7.3 mi
- 5/10Casey Middle SchoolGrades: 6-8Distance: 7.5 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 7.7 mi
Schools provided by the listing agent
- Elementary: Flatirons
- Middle: Casey
- 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
- 660 S Peak Rd
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