Situated behind the kitchen, the lower level bathroom is equally suited to cleaning up before a meal or taking a leisurely bath. Crisp white fixtures, including a Kaldewei Centro Duo bath, ensure that the bathroom feels as light and airy as the rest of the house.

The toilet must always be odor-free and look pleasing, be silent not offending any of our senses, can be a tall order.

Twisty columns

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."

Sometimes all it takes is a little luck. For a young married couple, it came in the form of this rare find: a 19th-century, three-story, single-family home in the heart of Paris. The building was a charmer with good bones, but was in need of some serious care. In a vibrant retrofit by architect Pierre-Louis Gerlier that includes structural reinforcements, the reimagined design is set off with a new floor plan. The lower level now serves as a space for the couple’s children, with the public areas—including an open-plan living/dining room and kitchen—on the floor above. Upstairs, the attic has been transformed into a very large primary bedroom with a green-and-white bathroom suite. The living room (pictured) showcases the firm’s bespoke carpentry work with a beautiful, mossy-green built-in bookcase that frames a new fireplace, and a staircase surrounded by arched doorways that hold hidden storage. “We created visual breakthroughs in order to connect the different spaces,” says Gerlier. “The rounded arches are there to help magnify these moments.”

Perched below the Griffith Observatory and overlooking Hollywood is a lush lot crowned with four towering olive trees and a 1965 home designed by modernist architect Craig Ellwood. When a young couple purchased the home in 2018, it needed substantial work. For a historic restoration, they called on Woods + Dangaran, a local firm fluent in modernist history. The team completed a meticulous restoration of the home while keeping original components like the linear shape, open plan, and expansive windows. One of the most striking features is the original koi pond (a feature deemed so essential that its preservation was a condition of escrow) that is now crossed via a bridge that leads to a new lap pool—perhaps the biggest intervention on the property.

Mazpazz Arquitectur

Interior designer Laura Britt followed WELL Building Standards to source the home’s non-toxic furnishings and finishes, which include living room chairs and a sofa from Thayer Coggin that use flame retardant– and formaldehyde-free cushions.

“It’s so nice back here in the summer in the shade,” says Sherry. “We don’t even have to put sunscreen on the kids. It’s a true little oasis.”

GreenSpur and McAllister Architects imagined a cabin sided with Cor-Ten steel, glass, and shou sugi ban–treated cedar for a wooded property outside of Washington, DC.

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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 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.

The floor-to-ceiling sliding doors and windows were the most expensive line item in the renovation. “The house would simply not be the same without them,” says architect Miguel Rivera. “When you are in the living area with the doors open, it creates one large indoor/outdoor space that is simply stunning.” Just beyond the kitchen, a bookcase in the hallway is painted to appear red from one side and gray from the other.

For the interior of the Stanwood residence, Logan returned to his minimalist palette of color and materials. The Stanwoods took particular zeal in furnishing the living area with a number of pieces from Limn in San Francisco, including a pair of B&B Italia chairs and a custom rug from Ligne Roset.

This spacious kitchen was designed for simplicity and functionality. Black and white kitchens that incorporate elements of gray tend to have a softer look. Seen here, gray accents, like the pendant lights and backsplash color, abound. Says the architect, "The design of the interior achieves a softer touch by using bespoke detailing and a rich palette of materials such as stone and timber."

In the top floor study area, a pair of Copenhague Desks by Ronan & Erwan Bouroullec for HAY are stationed below a Sax hanging light by Vertigo Bird.

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.

In the office are Metropolitan chairs by Jeffrey Bernett for B&B Italia. Most artwork hung throughout the house comes from Sette’s art gallery.

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.