The Twin Peaks Passive House + ADU was designed and built to remain resilient in the face of natural disasters. Fortunately, the same great building strategies and design that provide resilience also provide a home that is incredibly comfortable and healthy while also visually stunning. This home’s journey began with a desire to design and build a house that meets the rigorous standards of Passive House. Before beginning the design/ construction process, the homeowners had already spent countless hours researching ways to minimize their global climate change footprint. As with any Passive House, a large portion of this research was focused on building envelope design and construction. The wall assembly is combination of six inch Structurally Insulated Panels (SIPs) and 2x6 stick frame construction filled with blown in insulation. The roof assembly is a combination of twelve inch SIPs and 2x12 stick frame construction filled with batt insulation. The pairing of SIPs and traditional stick framing allowed for easy air sealing details and a continuous thermal break between the panels and the wall framing. Beyond the building envelope, a number of other high performance strategies were used in constructing this home and ADU such as: battery storage of solar energy, ground source heat pump technology, Heat Recovery Ventilation, LED lighting, and heat pump water heating technology. In addition to the time and energy spent on reaching Passivhaus Standards, thoughtful design and carefully chosen interior finishes coalesce at the Twin Peaks Passive House + ADU into stunning interiors with modern farmhouse appeal. The result is a graceful combination of innovation, durability, and aesthetics that will last for a century to come. Despite the requirements of adhering to some of the most rigorous environmental standards in construction today, the homeowners chose to certify both their main home and their ADU to Passive House Standards. From a meticulously designed building envelope that tested at 0.62 ACH50, to the extensive solar array/ battery bank combination that allows designated circuits to function, uninterrupted for at least 48 hours, the Twin Peaks Passive House has a long list of high performance features that contributed to the completion of this arduous certification process. The ADU was also designed and built with these high standards in mind. Both homes have the same wall and roof assembly ,an HRV, and a Passive House Certified window and doors package. While the main home includes a ground source heat pump that warms both the radiant floors and domestic hot water tank, the more compact ADU is heated with a mini-split ductless heat pump. The end result is a home and ADU built to last, both of which are a testament to owners’ commitment to lessen their impact on the environment.

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Lower level cabana. Photography by Lucas Henning.
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Shaw Floors

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Wellesley Green Home

ZeroEnergy Design

This LEED Platinum certified house reflects the homeowner's desire for an exceptionally healthy and comfortable living environment, within a traditional neighborhood. INFILL SITE. The family, who moved from another area of Wellesley, sought out this property to be within walking distance of the high school and downtown area. An existing structure on the tight lot was removed to make way for the new home. 84% of the construction waste, from both the previous structure and the new home, was diverted from a landfill. ZED designed to preserve the existing mature trees on the perimeter of the property to minimize site impacts, and to maintain the character of the neighborhood as well as privacy on the site. EXTERIOR EXPRESSION. The street facade of the home relates to the local New England vernacular. The rear uses contemporary language, a nod to the family’s Californian roots, to incorporate a roof deck, solar panels, outdoor living space, and the backyard swimming pool. ZED’s careful planning avoided to the need to face the garage doors towards the street, a common syndrome of a narrow lot. THOUGHTFUL SPACE. Homes with dual entries can often result in duplicate and unused spaces. In this home, the everyday and formal entry areas are one and the same; the front and garage doors share the entry program of coat closets, mudroom storage with bench for removing your shoes, and a laundry room with generous closets for the children's sporting equipment. The entry area leads directly to the living space, encompassing the kitchen, dining and sitting area areas in an L-shaped open plan arrangement. The kitchen is placed at the south-west corner of the space to allow for a strong connection to the dining, sitting and outdoor living spaces. A fire pit on the deck satisfies the family’s desire for an open flame while a sealed gas fireplace is used indoors - ZED’s preference after omitting gas burning appliances completely from an airtight home. A small study, with a window seat, is conveniently located just off of the living space. A first floor guest bedroom includes an accessible bathroom for aging visitors and can be used as a master suite to accommodate aging in place. HEALTHY LIVING. The client requested a home that was easy to clean and would provide a respite from seasonal allergies and common contaminants that are found in many indoor spaces. ZED selected easy to clean solid surface flooring throughout, provided ample space for cleaning supplies on each floor, and designed a mechanical system with ventilation that provides a constant supply of fresh outdoor air. ZED selected durable materials, finishes, cabinetry, and casework with low or no volatile organic compounds (VOCs) and no added urea formaldehyde. YEAR-ROUND COMFORT. The home is super insulated and air-tight, paired with high performance triple-paned windows, to ensure it is draft-free throughout the winter (even when in front of the large windows and doors). ZED designed a right-sized heating and cooling system to pair with the thermally improved building enclosure to ensure year-round comfort. The glazing on the home maximizes passive solar gains, and facilitates cross ventilation and daylighting. ENERGY EFFICIENT. As one of the most energy efficient houses built to date in Wellesley, the home highlights a practical solution for Massachusetts. First, the building enclosure reduces the largest energy requirement for typical houses (heating). Super-insulation, exceptional air sealing, a thermally broken wall assembly, triple pane windows, and passive solar gain combine for a sizable heating load reduction. Second, within the house only efficient systems consume energy. These include an air source heat pump for heating & cooling, a heat pump hot water heater, LED lighting, energy recovery ventilation, and high efficiency appliances. Lastly, photovoltaics provide renewable energy help offset energy consumption. The result is an 89% reduction in energy use compared to a similar brand new home built to code requirements. RESILIENT. The home will fare well in extreme weather events. During a winter power outage, heat loss will be very slow due to the super-insulated and airtight envelope– taking multiple days to drop to 60 degrees even with no heat source. An engineered drainage system, paired with careful the detailing of the foundation, will help to keep the finished basement dry. A generator will provide full operation of the all-electric house during a power outage. OVERALL. The home is a reflection of the family goals and an expression of their values, beautifully enabling health, comfort, safety, resilience, and utility, all while respecting the planet. ZED - Architect & Mechanical Designer Bevilacqua Builders Inc - Contractor Creative Land & Water Engineering - Civil Engineering Barbara Peterson Landscape - Landscape Design Nest & Company - Interior Furnishings Eric Roth Photography - Photography

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Living room. Photography by Lucas Henning.
Example of a beach style open concept living room design in Seattle with white walls

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Steel ship ladder. Photography by Lucas Henning.
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updated kitchen

Brooklyn Limestone

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San Elijo - Project

ProPacific Builders, Inc.

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Le Petit Chalet

Matthew Cunningham Landscape Design LLC

A durable, meaningful design heals a devastated residential property bordering Acadia National Park and Somes Sound on Maine’s Mount Desert Island. Comprehensive stormwater management strategies shape new landforms, resulting in elegant grading and thoughtful drainage solutions. Native plant colonies stabilize the site, regenerate habitat, and reveal wildlife patterns. Exquisitely crafted new masonry, built from an authentic palette of local reclaimed materials, gives the garden a unified, established feel. Lichen-encrusted stone retaining walls define edges, thresholds, and overlooks, and thick slabs of salvaged granite embedded in the earth provide gathering terraces and pathways. With balance restored, brilliant seasonal drama unfolds.

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Lower level cabana with courtyard door open. Photography by Lucas Henning.
Family room - small modern open concept concrete floor and beige floor family room idea in Seattle with beige walls and a media wall

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Lower level cabana with courtyard door shut. Photography by Lucas Henning.
Small minimalist open concept concrete floor and beige floor family room photo in Seattle with beige walls and a media wall

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

View from water side. Photography by Lucas Henning.
Contemporary exterior home idea in Seattle

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Lower level cabana media wall. Photography by Lucas Henning.
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Enchanted Storybook

Kristie Barnett, The Decorologist

Melanie G Photography
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Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

View from road with sun deck in the foreground. Photography by Lucas Henning.
Small modern gray two-story metal house exterior idea in Seattle with a shed roof and a metal roof

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Master bedroom. Photography by Lucas Henning.
Bedroom - coastal bedroom idea in Seattle

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

View from road at twilight. Photography by Lucas Henning.
Inspiration for a contemporary gray two-story exterior home remodel in Seattle

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Bay window with views to Skagit Bay. Photography by Lucas Henning.
Example of a beach style open concept living room design in Seattle with white walls

Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

Master bedroom with translucent doors open. Photography by Lucas Henning.
Beach style bedroom photo in Seattle

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Tsunami House, Resilient Design, Camano Island WA

Dan Nelson, Designs Northwest Architects

View from beach at twilight. Photography by Lucas Henning.
Example of a small minimalist gray two-story metal house exterior design in Seattle with a shed roof and a metal roof