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.

Sherman Oaks master bathroom.
Photo of a mid-sized traditional master bathroom in Los Angeles with an undermount sink, recessed-panel cabinets, dark wood cabinets, marble benchtops, a two-piece toilet, beige tile, stone tile, beige walls, limestone floors, an alcove tub and a shower/bathtub combo.

This renovated bathroom features a large vanity with a crisp white countertop, dark wooden linen closet, off-white marble tiling of the shower walls, a tiled shower niche and vanity backsplash made from neutral colored tiles, and thunder gray painted walls. Project designed by Skokie renovation firm, Chi Renovation & Design. They serve the Chicagoland area, and it's surrounding suburbs, with an emphasis on the North Side and North Shore. You'll find their work from the Loop through Lincoln Park, Skokie, Evanston, Wilmette, and all of the way up to Lake Forest. For more about Chi Renovation & Design, click here: https://www.chirenovation.com/ To learn more about this project, click here: https://www.chirenovation.com/galleries/bathrooms/

Ulimited Style Photography
Photo of a mid-sized modern bathroom in Los Angeles with an undermount sink, flat-panel cabinets, dark wood cabinets, quartzite benchtops, an undermount tub, a shower/bathtub combo, a one-piece toilet, brown tile, stone tile, white walls and limestone floors.

Small contemporary kids bathroom with a drop-in tub, a shower/bathtub combo, a two-piece toilet, white tile, ceramic tile, green walls, limestone floors, a wall-mount sink, beige floor and a single vanity.

Photography: Melinda Ortley
Design ideas for a small traditional bathroom in Dallas with dark wood cabinets, a claw-foot tub, a shower/bathtub combo, a one-piece toilet, white walls, limestone floors, a vessel sink, wood benchtops, grey floor, a shower curtain and brown benchtops.

This is an example of a mid-sized contemporary master bathroom in Barcelona with a drop-in tub, a shower/bathtub combo, a two-piece toilet, stone tile, beige walls, limestone floors, a vessel sink and wood benchtops.

The upstairs guest bathroom features 6x6 Blue Limestone at the floor with a Tin Matte custom hand molded ceramic on the shower walls. Cabochon Surfaces & Fixtures

Custom millwork allows for ample storage in a tight bathroom. Hand cast glass mosaic tiles accent white millwork. The Icestone countertop is made of recycled materials. photography by www.tylermallory.com

Design ideas for a mid-sized transitional master bathroom in New York with flat-panel cabinets, medium wood cabinets, solid surface benchtops, beige tile, stone tile, a shower/bathtub combo, a one-piece toilet, an undermount sink, beige walls and limestone floors.

Mid-sized transitional master bathroom in New York with recessed-panel cabinets, white cabinets, solid surface benchtops, beige tile, a shower/bathtub combo, a one-piece toilet, a drop-in sink, beige walls and limestone floors.

Compact Family Bathroom
This is an example of a small traditional kids bathroom in Gloucestershire with a drop-in sink, recessed-panel cabinets, a drop-in tub, a shower/bathtub combo, a one-piece toilet and limestone floors.

Custom shower/tub enclosure and custom bath vanity cabinet and wainscoting accents.
Inspiration for a large traditional 3/4 bathroom in Chicago with an undermount sink, raised-panel cabinets, medium wood cabinets, granite benchtops, an undermount tub, a shower/bathtub combo, a two-piece toilet, beige tile, stone tile, beige walls and limestone floors.

Design ideas for a mid-sized transitional master bathroom in St Louis with shaker cabinets, black cabinets, an alcove tub, a shower/bathtub combo, a two-piece toilet, white tile, grey walls, limestone floors, a vessel sink, engineered quartz benchtops, beige floor, a shower curtain, white benchtops, a single vanity and a built-in vanity.

Photo of a mid-sized modern master bathroom in Los Angeles with a shower/bathtub combo, brown tile, wood-look tile, brown walls, limestone floors, grey floor, brown benchtops, wood and wood walls.

Photographer: Tom Ferguson
Inspiration for a mid-sized contemporary master bathroom in Sydney with furniture-like cabinets, dark wood cabinets, a freestanding tub, a shower/bathtub combo, a wall-mount toilet, white tile, ceramic tile, grey walls, limestone floors, an integrated sink, solid surface benchtops and grey floor.

As with the rest of the client's home, contemporary art is part of the room design. The red art really pops against the serene palette of silver travertine, engineered quartz countertop and gray painted walls.

The tub and fixtures are from Kohler and bold white hexagon tiles add an interesting, classic touch. photos: Helynn Ospina
This is an example of a small modern master bathroom in San Francisco with furniture-like cabinets, dark wood cabinets, a drop-in tub, a shower/bathtub combo, a one-piece toilet, white tile, ceramic tile, grey walls, an integrated sink, solid surface benchtops and limestone floors.

Inspiration for a contemporary bathroom in Chicago with flat-panel cabinets, medium wood cabinets, an alcove tub, a shower/bathtub combo, a one-piece toilet, beige tile, ceramic tile, beige walls, limestone floors, an undermount sink, limestone benchtops, beige floor, a shower curtain, brown benchtops, a laundry, a single vanity and a built-in vanity.