2024 RDAA | Custom Accessory or Outbuilding | Henry Island Guest House | Bohlin Cywinski Jackson

“It’s very cleanly laid out, designed, and detailed. There isn’t a bad side to it,” a jury member said of this remote guest house in the San Juan Islands. Bohlin Cywinski Jackson had designed the main house more than 10 years ago. Now the new owners were calling back to request a two-bedroom guest house where family and friends could enjoy extended stays.

“There was a desire on the part of the owners to have it be a self-sufficient guest house, but they intended for meals and activities to be centered on the main house,” says Ray Calabro, FAIA. “We considered how to do just enough that it felt very comfortable but not draw energy away from gathering in the main residence.” Arrival is by boat, and they positioned it along a trail that leads from a common boat dock up through a forest, then turns back to a meadow that faces the bay. The low, linear building stretches from the forest to the meadow, “straddling those two worlds,” Ray says. Two bedrooms lie at opposite ends of the house, separated by a central seating area. On the gently sloping site, one bedroom is close to the earth, spilling out to a deck that gazes into the forest. The other bedroom sits above grade on slender columns, its raised deck facing the water view. “One speaks more to shelter, the other to prospect over the site,” Ray says. 

Our jury applauded the “wonderful layering of the exoskeleton” and sophisticated detailing. The design intentionally suppresses the boundaries between inside and out. Steel beams and posts are exposed within the glassy building envelope, and in one of the bedrooms a glass wall system steps over a low, board-formed-concrete seating ledge that continues out to the patio. Large lift/slide glass doors open the center section completely so that it reads like a porch. Dark-stained western red cedar cladding moves from outside to inside, and Douglas fir ceiling beams create a pleasing rhythm across the long façades. Even the weathered steel panels extend into each bedroom, becoming an oversized headboard. The layering of wood over steel echoes that of the main house and provides a visual link when viewed from the meadow.  

As the architects learned from building the original house, the lack of ferry service to Henry Island informed the material choices, prioritizing prefab items. “The steel, glulam timbers, and metal siding were fabricated in Seattle and brought to a neighboring island, and then over to Henry Island in small quantities as we needed them,” Ray says. “The general contractor, Chris Huggins, was a mastermind of all the logistics and was just exceptional.”

That’s evident in the result. “It’s a beautiful concept, wonderfully detailed,” a judge said.




Custom Accessory or Outbuilding

Bohlin Cywinski Jackson

Henry Island Guest House

Henry Island, Washington

Architect/Interior designer: Ray Calabro, FAIA, Bohlin Cywinski Jackson, Seattle

Builder: Chris Huggins, Hoxie Huggins Construction, Seattle

Landscape architect: Allworth Design, Seattle

Structural engineer: PCS Structural Solutions, Seattle

Project size: 1,350 square feet

Site size: 5.09 acres

Construction cost: Withheld

Photography: Aaron Leitz, Benjamin Benschneider


Cabinetry: Custom
Douglas fir

Cabinetry hardware: Blum Blumotion

Cladding: Weathering steel

Countertops: PentalQuartz

Dishwasher: Bosch undercounter

Engineered lumber: Spearhead

Entry doors and hardware: Quantum Windows and Doors

Faucets: KWC, Hansgrohe

Fireplace: Stüv

Flooring: West Valley Hardwood white oak

Foundation: Concrete

Insulation: ROCKWOOL ROXUL

Lighting: Eaton, Element

Refrigerator: Perlick undercounter

Roof system: Custom Steel Fabricators

Roofing: NuRay standing seam metal

Sinks: Julien, Kohler, Infinity Drain

Surfacing: Heath Ceramics

Toilets: TOTO

Wallboard: ACX fir plywood panels

Washer/dryer: Asko stackable

Window wall systems/Windows: Quantum Windows and Doors