Explore Our Projects

Wildewood Passive House

This 3,000 square foot Passive House near Nederland, CO, features Alpen’s energy-efficient windows and doors, designed to optimize solar gain.

SERA Architects HQ

SERA Architects, a leader in sustainable design, recently completed their new 40,000 SF headquarters in Portland, OR.

Mountain Top Lane

LoHi Urban Cottage

The LoHi Urban Cottage challenges industry standards with its high-performance, high-caliber design focused on future residents' comfort.

Maine Deep Energy Retrofit

The Deep Energy Retrofit House in Maine underwent a transformation with a goal of achieving Net Zero Energy.

Sungazing House

The Sun Gazing House, the first LEED Platinum Certification winner, redefines eco-friendly living with innovative, sustainable designs that are both luxurious and full of warmth and personality.

Utah Knolls Home

Electric Pass Lodge

Snowmass Electric Pass Lodge is a 52-unit, net-zero ready, all-electric luxury condominium building, part of a 1,420,000 SF total base village development.

West Plaza Net Zero

This stunning modern Net-Zero home in West Plaza features triple-pane Tyrol windows that boast a remarkable U-Value of 0.09.

Beacon Hill Passive House

This home is the first Passive House to be built in the state of Missouri. It features exceptional craftsmanship, and stunning modern design.

Boulder Commons

Boulder Commons is a vibrant multifamily complex just outside downtown Boulder, featuring apartments, retail, and sustainably designed offices focused on sustainability and energy savings.

Meadow House

Nestled in the scenic landscapes of Boulder, Colorado, the Meadow House is a testament to modern design and energy efficiency.

The Fargo House

Located in Louisville, Colorado, this 3,452-square-foot net-zero contemporary home, designed by DAJ Design, harmonizes modern aesthetics with the historic context of the Old Town District.

Eagle Nest Ranch

Located in a stunning canyon setting, this home features many, large Tyrol windows and doors, flooding the space with natural light.

Hyggeland Cabin

Welcome to Hyggeland, a charming cabin that perfectly blends rustic allure with modern amenities. Nestled in a serene setting, this cozy retreat ensures energy efficiency and comfort all year round.

Sunflower Sanctuary Passive House

In Boulder County, CO, this Passive House rebuild for a family affected by the Marshall Fire features our energy-efficient triple-pane windows and doors.