• 2586 3rd Street

    Trailhead in Boulder, Colorado

  • tranquil lock & leave sanctuary

  • outstanding views & impeccable craftsmanship

  • walking distance to town & trails

Located in Trailhead, one of Boulder’s most prized neighborhoods, 2586 3rd is a testament to quality design, impeccable craftsmanship and innovative architecture, offering turn-key living on a quiet dead-end street, with direct access to open space trails and walking distance to downtown shops and restaurants. The most coveted and rare feature: Stunning views of Boulder’s iconic Flatirons and Sanitas Mountain. With walls of glass and an airy, open floor plan bathed in natural light, this home is a luxurious sanctuary in a vibrant and nature-oriented City.

Offered at $4,500,000| UNDER CONTRACT

For more information or to schedule a private showing, please contact
Leyla Steele 303-859-3110 home@leylasteele.com

Property Description

Entering the main level from the front porch, past exterior walls clad in Cottonwood limestone, one is instantly met with exquisite finishes and welcoming spaces that create a sense of well-being: custom steel and reclaimed oak floating staircase, radiantly heated 7” Kahrs Nouveau white oak plank floors, sophisticated Porcelanosa tile, seamless level 5 white walls, frameless glass windows imported from Europe and a Scandinavian style birch wood paneled Morningstar elevator that accesses all 3 levels of the home. 

At the end of the hallway is one of two primary bedroom suites, bathed in light with panoramic views facing east. The adjoining spa-like bathroom offers stunning custom cabinetry, designer lighting and a gorgeous walk-in shower. The closet is built out with custom shelves and hanging spaces, naturally lit by a discreetly placed window. The two other bedrooms are both light-filled, with windows facing south to capture southwest views, each with a walk-in closet. These two bedrooms both access a beautifully appointed shared bathroom, with custom cabinets and double vanity, with a separate room housing the deep Kohler soaking tub and and toilet. This level also features a spacious family room that spills out to a deck through a wall of sliding glass doors. This versatile space offers so many opportunities, depending on one’s priorities and lifestyle – imagine it as a gym, studio, office or playroom. It has a closet so is considered a 5th bedroom with a powder room across the hall. Also on this level is a generously sized laundry room, with laundry sink, yards of custom cabinetry and a door to the south accessing the grass lawn.

Walking up the expertly crafted steel and reclaimed oak floating stairs to the upper living area, the surprise that awaits is a jaw-dropping. The awe of entering the Great room, with its walls of glass, and seeing a live portrait of Boulder’s iconic Flatirons, is a peak experience. Yawal windows are known for their frameless, high-performance design and in this home, they are employed to dramatic effect. The north and west walls of the Great Room are literally made of glass, capturing the view of Sanitas Mountain and the ridge line that creates the City’s open space boundary. To the south, the 10’ sliding doors extend the living space to a sun-drenched balcony that can be enjoyed in all seasons, thanks to Colorado’s winter sunshine, and steel posts for anchoring sun shades in summer, with the everchanging light and views of the Flatirons as a companion. The adjoining dining area has complementary sliding glass doors facing west that access the same balcony, with large windows facing south and another set of glass sliding doors to a smaller, east-facing terrace, perfect for morning coffee. From the terrace, exterior stairs extend to the grass lawn on the southeast corner of the home, which can be fenced for pets. The exterior living areas of this home add an additional 717 SF.  A modern wood-stove and vaulted ceilings add to the lofty, yet intimate, mountain chalet feel.

The cook and entertainer’s kitchen is a soothing palette of sleek, dark Wedgewood custom cabinetry and smooth white Cambria countertops and backsplash with a large central island designed for gathering, complemented by a Wolf 5 burner induction cooktop. On the north wall of the kitchen is floor-to-ceiling wall of functional cabinetry, with plenty of storage, Wolf wall oven and microwave, plus wet bar featuring a Zephyr 45 bottle wine refrigerator, The other high end appliances include a Bosch silent dishwasher and Subzero Refrigerator clad in the same wood as the cabinetry, providing a seamless, modern look.

Down the hallway, past the elevator access and the discreet powder room, is the upper level primary suite. Sumptuous and inviting, with a wall of glass sliding doors facing east accessing a private balcony, this is the spot to greet the rising sun and full moon, with an elevation that offers city lights views. The 5 piece bathroom, with luxurious Duravit soaking tub, walk-in shower and custom double vanity, plus large walk-in closet and custom built-ins, complete this extraordinary glass encased upper level, with views in all directions. 

The lower level of the home provides access from the garage, with spacious mudroom entry and elevator access, and is finished to the same level of quality as the two other levels. The rooms on this level are mainly for mechanical and storage, and in this home there is no shortage of storage space. The mechanical room houses the Triangle Tube boiler, which powers the radiant floor heat and hot water with 95% efficiency, along with a 16 SEER high velocity air conditioner for cooling. There is a 10.9 kW photovoltaic system and the home is wired for generators. The HERS score for this home is zero.

One of the truly remarkable and rare features of this property is the 1288 SF garage with in-floor radiant heat in the 6” thick concrete slab. With 11” ceiling height,  two insulated 10’ 6’’ garage doors and hot + cold water spigot, this is not ONLY a phenomenal space for 5 cars, with height clearance to house recreational vehicles/trailers and lift for collectibles. Designed to offer year-round comfort, warm in winter and cool in summer, with doors that open to the outdoors, this space offers a myriad of outstanding possibilities and opportunities, some of which are highlighted on the vision board. Consider an amazing art studio or  world-class training facility with a rock climbing wall, swimming spa and infra-red sauna. Or one of the coolest man caves in town, with a game room and bike shop. This garage is big enough, tall enough, and comfortable enough, to house a combination of the above AND cars. Let your imagination run wild because this kind of garage space does not exist elsewhere in this prime City location and rarely exists in all of Boulder County. 

With a home that features walls of glass, a Buyer might wonder about window coverings. Many options have been researched, and can be shared, however it has been determined that this is a highly subjective decision, and for this reason, Seller is offering a generous $100K credit to Buyer to select and purchase window coverings of their choosing, contingent on an acceptable purchase offer. 

The Trailhead neighborhood is located on the flanks of Sanitas Mountain and straddles Mapleton Hill and Newlands. A few steps down the lane is the literal trailhead that accesses miles and miles of Boulder’s legendary open space trails. A few blocks to the south is the west end of Pearl Street, renowned for its distinctive shops and award-winning restaurants, along with Boulder Creek Path, St. Julien Spa, Farmers Market, Boulder Public Library and all the other wonderful amenities that make Boulder such an outstanding place to call home. A few blocks north is North Boulder Park, offering a community gathering spot for outdoor recreation, including groomed cross country trails when it snows. A bit further is the Ideal Market shopping area, and the North Boulder Recreation Center. In other words, this neighborhood is in the epicenter of what makes living in Boulder so desirable. 

Special Features

Next level design and engineering employing the highest quality materials and craftsmanship.

Glass windows and doors: Yawal windows are hand-crafted, imported and transported via barge from Europe. They re-define high performance modern design with high thermal efficiency, noise reduction and flexibility of design. This home is the poster child for “less frame, more view”. https://yawalusa.com/category/residential-windows/

Radiant Heat: Generally Boulder contractors/builders choose forced air HVAC systems because they are significantly less expensive to install, despite the prevailing consensus that radiant is more efficient and creates a more comfortable indoor air environment. It is surprising how many $4M+ properties in Boulder have forced air. This home not only has radiantly heated floors throughout the house, it also has a radiantly heated garage floor, which is unheard of in Boulder. In addition, the concrete driveway is plumbed for radiant heat that needs only to be hooked up. Given the east and southern exposure of the driveway, the snow melts quickly so connecting the radiant driveway system has not been necessary. 

Elevator: Many Buyers desire an elevator and in Boulder they are rarely offered in new single family construction and often are retrofitted, which is not ideal. In this home, the stylish elevator was incorporated in the original design plans and executed with expert craftsmanship by Colorado based Morning Star Elevator, which sets the standard in the industry with more than 3 decades of experience: https://mselevator.com/

Wood flooring: Kahrs Sweden, revered in the business for nearly 170 years, was chosen not only for its beauty, but for its durability and sustainability – made to last and look as good as it did the day it was installed https://new.kahrs.com/us/b2b/about-us/

Ceramic Tile: The tile work in this home, especially in the two primary suites, and walk-in showers, using the exceptionally beautiful Porcelanosa ceramic tile, is a master class in artistry, subtly blending textures to achieve balance and serenity in color and design. Porcelanosa is internationally renowned as the best: https://www.porcelanosa.com/en/products/

Custom cabinetry: All the custom cabinetry throughout the home including bathrooms, laundry room and kitchen was designed and crafted by Wedgewood, a trusted, local, family-owned business providing high end cabinetry for luxury homes in the area since 1984. https://www.wedgewoodcabinetry.com/

Grading, Drainage, Erosion, Landscaping and Fire-Resistance: Extensive engineering by Scott Cox (plans available upon request) including french drain with exterior sump pit and commercial back-up system and landscape architectural plan from Evoke (available upon request) augments drainage with hardy planting and stonescaping. Fire-resistant technology includes interior sprinklers and exterior finishes such as stone and specifically treated wood siding. 

Energy Efficiency: HERS rating = 0. Report available upon request. 10.9 kW photovoltaic system, 95% efficiency Triangle Tube boiler, 16 SEER high velocity Air Conditioning system with flexible, tubular duct work to minimize space and maximize output. The house is wired for generators and/or Tesla Battery in the secondary electrical box in the laundry room. 

Remote capability: Nest system for remote monitoring of heating/cooling as well as smoke/CO2 detection. Yale keypad locking doors at garage entry and entry to home from garage. Ring cameras at front door, laundry side door, dining room terrace sliding doors and entry to lower level from garage. Additional ring cameras inside the home have been disabled during showings, but are available if desired. 

Roof and Property Insurance: EDPM rubber roof system with a life expectancy of 25+ years, and GAF Armorshield Class 4 impact shingles (UL2218) may reduce property insurance rates. 

Square Footage and Value: Finished spaces are those that are “conditioned” meaning heat and humidity are controlled for year round comfort. Given that the 1288 SF garage is heated and insulated, it is considered finished square footage. However this feature is so rare, local public records and the MLS does not provide a way to account for it. The total finished square footage (including garage & lower level) is 5678 SF. This is the SF total that should be used to calculate price per SF. At $4.5M that is $792/SF – an extremely low price per square foot for a newly constructed, quality luxury home with high level finishes throughout, especially in this location. If one calculates finished square footage as recorded in Public Records (and MLS) the price/SF is $1068, still an incredible value when considering that recent new construction in the area is coming in closer to $2000/SF. There is not much turnover in Trailhead – the last property that sold in 2024, at 2621 3rd, was $1500/SF.  Not counting the garage or lower level, when comparing above grade square footage, 2586 3rd has 3661 SF and 2621 3rd has 3811 SF – very similar. Yet the price/SF of 2621 3rd is nearly double: $1229/SF vs  $2283/SF. Another data point: the nearby property at 2656 4th (not in Trailhead) is under contract. Priced at $6M, that translates to $1256/SF for finished SF and $1986/SF for above grade SF. 

The Garage

One of the truly remarkable and rare features of this property is the 1288 SF garage with in-floor radiant heat in the 6” thick concrete slab. With 11” ceiling height,  two insulated 10’ 6’’ garage doors and hot + cold water spigot, this is not ONLY a phenomenal space for 5 cars, with height clearance for a lift to house collectibles and recreational vehicles/trailers. Designed to offer year-round comfort, warm in winter and cool in summer, this space offers a myriad of outstanding possibilities and opportunities. Consider a world-class training facility with a rock climbing wall, swimming spa and infra-red sauna. Or one of the coolest man caves in town, with a game room. This garage is big enough, tall enough, and comfortable enough, to house a combination of the above AND cars. Let your imagination run wild because this kind of garage space does not exist elsewhere in this prime City location and rarely exists in all of Boulder County.

What makes Trailhead so special 

In Boulder, the value of a neighborhood and a property is determined by proximity to open space trails and proximity to downtown – precisely what makes the Boulder lifestyle so desirable. Walking from your house to hike, or shop, or dine at one of Boulder’s many award-winning restaurants is what attracts people to Boulder from all over the world. As a result, Mapleton Hill has long been Boulder’s most premier and coveted neighborhood. Given that 99% of the homes in this neighborhood are historic, if a Buyer wanted new construction, they needed to look elsewhere. That all changed when a developer purchased one of the last large parcels of land in Mapleton Hill and partnered with Surround Architecture, the most revered architecture firm in Boulder, to create Trailhead. At last, new quality construction and masterpiece modern architecture were coming to Mapleton Hill. Starting in 2014, lots were sold, and over the ensuing decade, homes were constructed. The last homes were finished in 2025. The lot for 2586 3rd, one of the largest in the neighborhood, was purchased by the current owners in 2021 and construction, by Cowbell Construction, one of Boulder’s most esteemed custom builders, was completed in 2023. Currently, 2586 3rd is the only property for sale in Trailhead.

For more information or to schedule a private showing, please contact

Leyla Steele 303-859-3110 home@leylasteele.com