Purple thistles, California poppies, clover, and dandelions have all taken root in the roughly 10-inch-deep, lightweight humus and grape-husk soil in this 580-square-foot green roof. Designer Peter Liang says that he "wanted to plant a green roof for its thermal mass, but I wanted it to be as natural as possible."

Suzanne and Brooks Kelley at the back of their 1,100-square-foot guest cottage.

The owners toured this home, which surrounds a mature tipu tipu tree, while visiting relatives for the day. The brick is original to the 1947 construction.

Sliding doors by Quantum were made to look like the original panes that couldn't be saved, and they lead to a fire pit outside.

At the top of the stairwell, a sitting area is outfitted with a vintage Eames lounge, a large Jack Goldstein painting, and a 1970s light fixture found by Marcovitz in Paris.

The view!

The crumbling stone walls of a 17th-century farmhouse in the remote countryside of Dumfries, Scotland, presented a unique renovation opportunity for Lily Jencks Studio and Nathanael Dorent Architecture, the teams behind this project. Rather than demolish the old walls, they inserted a crisp, modern home within them, so as to emphasize the site's history and passage of time.

Outside, a triangular saltwater pool overlooks breathtaking views.

A yellow epoxy floor matches the sconce in the tiny bathroom that sits under the staircase.

The kitchen features a concrete island topped with marble. Deja-Vu stools by Naoto Fukasawa surround the island. A print by Guy Gormley, as well as a painting bought during holiday in St. Tropez, hang on the walls.

Heva was designed by A6A and manufactured by My Little Loft. A spacious deck and large glass doors allow for seamless indoor/outdoor living.

Take a look at some of the most exciting, sustainable buildings around the world, and you may notice something they have in common: green roofs, or rooftops covered with a thin layer of soil to allow for grasses and other low-lying plants to grow.

New Depths Inspired by a local winery, George Kyprianou wanted a glass top on his subterranean wine cellar. The interior is lit, casting soft light into the living space at night and revealing the 132-year-old stone foundation. The three-quarter-inch glass lid sits flush with the floorboards; it opens with an ingenious device that Kyprianou devised using a 12-volt air compressor and a remote-controlled switch. When you push the button, the glass lifts just enough to be removed by hand.

Light Box Peter created a simple uplight at the top of the wood box by wiring together energy-efficient fluorescent fixtures typically used under cabinets and countertops. “The cheaper magnetic models hum unacceptably loudly, so make sure you get the electronic ballast types,” he warns. He then painted the cavity white to reflect light and covered them with quarter-inch-thick acrylic from TAP Plastics. homedepot.com tapplastics.com

The view of Kapiti Island is fully revealed from the tower.

It's tough to be productive when you're uncomfortable: the 11+ Bottle Humidifier ($90) is a superbly sculptural device that can improve any office atmosphere, visually and literally. Its ultrasonic nebulizer automatically deactivates when its water is completed, ensuring no energy is wasted.

The top container contains Wardell's office—and a "napping nook" above that.

In the dining area, a one-of-a-kind table with a reclaimed Carrara marble top by NET—themultidisciplinary design firm of architect Alejandro Sticotti, with whom Nicolas works—is surrounded by prototypes of the company’s Board chair. The family dog, China, sits on a floor made of travertine tiles.

Casa Volta, located in Puerto Escondido, Mexico, sits among a lush landscape mere steps away from the Pacific Ocean. The almost 1,300-square-foot plan is made of six rectangular areas—alternating between open terraces and the three covered structures.

The architects added a small circular skylight to serve as a vertical focal point in the center of the fifth floor. The quarter-sawn white oak risers produce a beautiful rippled grain highlighted by the abundant natural light.

The Kelleys furnished the cottage with help from Suzanne’s daughter Betsy Burbank of Betsy Burbank Interiors. Classic modernist icons, such as a Saarinen Womb chair for Knoll, a Herman Miller Eames lounge chair, and an Eileen Grey E1027 side table look at home alongside present-day pieces such as an Encore sofa (which handily folds down into a sleeping surface) from Room & Board and a Doka rug designed and produced by Stephanie Odegard. The Wohlert pendant lights from Louis Poulsen were designed by Vilhelm Wohlert in 1959, but grouped as such, they appear distinctly contemporary.

The L-shaped kitchenette is outfitted with minimalist black appliances and fixtures.

Dubbed Small But Fine, a student-built 280-square-foot cabin in Finland connects with the outdoors and features a minimal footprint. Not pictured is a detached outhouse with a composting toilet.

A large bed was deliberately chosen so that Kiki can grow into over it time. The vertically oriented plywood echoes the vertical lines of the hone’s timber cladding.

11+ World Desk Clock designed by Yeongkyu Yoo for Leibal, $49 at store.dwell.com This cylindrical desk clock is inscribed with names of different international cities, telling the time in each. All 24 time zones can be displayed, thanks to a distinctive rolling mechanism.

After: The new fireplace surround is make of Cava Tile and a custom salmon pink grout that Michelle mixed with the contractor. "I could have ordered something off the shelf, but this enabled me more freedom to get the color closer to what I wanted,

The same compound of post-war heritage houses is home to Avellana Gallery, designer Jojie Lloren’s atelier, and Artelano 11, a major design destination. In the space, furniture designer and interior designer Eric Paras not only showcases Industria, his collaborative line with Jude Tiotuico, but he has also carefully curated a stellar collection of mid-century pieces, vintage tabletop items and dishware, and standout work from other local designers.

A metal roof is adorned in moss that was found on the property.

This space exudes a modern elegance with clean lines and minimalist design. Across from the kitchen, limestone wraps around the base of a built-in banquette paired with inky blue leather cushions. The sleek seating is paired with a custom bronze and marble dining table by Daniel Barbera and Cassina 412 Cab Chairs.

The yellow North Face tent looms over the top of the main building.

Yvette, Adrian, and their son Julian survey the view from the top-floor terrace. “I’ve never been fond of modernism—I find it cold,” Adrian admits. “But having this house, I have to say, it’s growing on me.”