Kate’s father predicted they would never use the crow’s nest–like tower, which is reached by climbing a narrow staircase.

The space is also adorned with timber cladding, as seen on the entry door.

Stepstone's narrow concrete pavers add a graphic touch to the garden.

White oak paneling imbues uniformity and warmth into the hallway, kitchen, and living spaces.

In realizing their dream to build a country retreat in upstate New York, Sandy Chilewich and Joe Sultan—proprietors of the textiles firm Chilewich|Sultan—eschewed a mountainous view for an understated wooded plot. At 800 square feet, the flat-roofed home is a modest structure for the expansive 10-acre property.

Fruit, fruit endless fruit for breakfast.

Project Projects is helmed by Rob Giampietro (on left), Adam Michaels (on right), and Prem Krishnamurthy (not pictured).

A covered walkway provides a sheltered passage between the main house and studio. The fire pit is used during social gatherings.

The 4TREEHOUSE features a futuristic illuminated facade that looks like something straight out of a science fiction movie.

White platters from Crate & Barrel allowed the food—lox, crudités, and cornichons—to stand out atop the Saarinen table.

This tree house in Sweden with a mirrored exterior by Tham and Videgård Arkitekter is just large enough to host two people.

Stepstone's narrow concrete pavers add a graphic touch to the garden in the Mill Valley home of Dwell founder Lara Hedberg Deam and architect Chris Deam. Photo by Dustin Aksland.

A path created with Stepstone's narrow concrete pavers meanders through the garden past the master bedroom.

The custom leather platform bed was designed by Shikany’s firm, PS Studios.

Radamés “Juni” Figueroa lived in his art project tree house, made from found materials, for two fortnights, as part of his artist residency at La Practica at Beta-Local. "The Practice" is an interdisciplinary program of research and production focusing on art, architecture, and design, with an emphasis on collaboration.

They also designed two books for the Princeton Architectural Press' new series Inventory Books.

A more narrow window focuses the eye on tree trunks, creating an “abstracted view of the landscape,” says the firm.

Technically, this small building is not a tree house, since it’s braced at the ground by supports, but Grey didn’t want to compromise the tree, which “doesn’t have a very long lifespan,” the designer says. “So, I didn’t want to jeopardize however long that tree had with any excess baggage.”

Project M House.

The sinuous interior is lined with CNC-cut wooden panels that define stepped sauna seating and porthole windows.

The sauna structure includes a small deck.

A 25-foot custom bifold door made of corrugated plastic and twin-wall polycarbonate encloses an artist’s studio designed by Marc Frohn of FAR frohn&rojas.

The ribbon-like design affords the building three different gable profiles—one is symmetrical, while the other two lean in opposite directions.

Inspired by the 1950's tropical modernism movement in Sao Paulo, Brazil , this light fixture stands 150cm tall and is made of fine pine offcuts and glass bottles.

Rose’s pottery studio opens right up to the back lawn to let the sunlight (or curious pups) inside.

A wood-burning stove from Harvia, of Finland, heats the sauna. The pavilion’s rough-cut pine walls are treated with tar, a preservative that yields a time-worn aesthetic.

Phillips designed Judith a stark white, glass-fronted art studio.

We tried to be very resourceful. You shouldn’t see any tile on the deck that had to be cut; it’s almost like a perfect puzzle,” comments the designer, Marc Frohn.

The sauna is named after Huginn and Muninn, two ravens from Norse mythology.