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.

The view!

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.

Tom Givone's current weekend abode, nicknamed the Floating Farmhouse, is—so far—his capstone project, a synthesis of personal taste, material experimentation, and historically sensitive restoration: a living laboratory for how to bring the vernacular past into the present.

Overhead cabinets now can be easily swung open for ease of access. The kitchens are priced at IKEA’s usual retails. A 10 by 10 foot kitchen fitted with Sektion cabinets will range from around $1,300 to $2,200, excluding appliances.

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.

Black and white kitchen tiles add visual interest to this stunning modern kitchen by IKEA.

A tiny outbuilding offers a cozy living space inside a simple shell.

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.

As the facade of a Bates Masi-designed home in Water Mill, New York, rises from eight to 14 feet high, the mahogany planks subtly widen. “It was quite a demand to make of the contractor,” architect Paul Masi says. “But the design was so much about traveling through the site and weaving [the house] together with the deck.”

Fed up with flashy, environmentally insensitive beach homes, architect Gerald Parsonson and his wife, Kate, designed a humble hideaway nestled behind sand dunes along the New Zealand coastline. Crafted in the image of a modest Kiwi bach, their 1,670-square-foot retreat consists of a group of small buildings clad in black-stained pine weatherboards and fiber-cement sheets.

The family spends summers and school vacations at the bach. New Zealand's relatively mild winters mean they use the house year-round.

Tanya Wexler and Amy Zimmerman linger in the breezeway designed to draw eyes, and footsteps, from the driveway through the house to the gently sloping backyard and swimming pool beyond.

“A building can have far greater impact than the space it stands in.”—William Carpenter, architect and resident

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 Jorgensen's Menlo Park home is a model of green design with features that are smart for everyone to consider. "Every project is different, but there are some universal things that will apply from project to project," says Feldman about designing a green home. "The first—and most obvious thing—is to always try to build less, to have a smaller house and be smart about how the rooms are designed and oriented so that you can get by with less space. Smart design will lead to a smaller building, but it won't feel smaller."

Kayak in hand, Tom and Will make a break for the beach.

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

New zoning allowed for a zero-lot-line structure, but required a public storefront, which Carpenter uses as an art gallery.

A view across the display island to a breezeway betweent the house and the garage that Pacek and Roynon created as part of their home addition. They use the space for entertaining and food service when the weather cooperates.

A Lakeside Prefab in New Jersey A New Zealand expat and her son use their prefabricated lakeside New Jersey retreat as an outdoorsy counterpoint to city life. Photo by: Mark Mahaney Curious on what was popular last week? Click here!

IKEA chairs join a table from CB2; a Kawneer triple-sliding door opens to the family’s new ipe deck.

The Irwin pool house designed by Landis Gores in 1957 boasts a central room with high ceilings and an unobstructed view of the landscape. In 2005, the Town of New Canaan purchased the property and added exhibition spaces, as well as rooms for lectures and events. The small pavilion also houses an oversized, monumental brick fireplace design that divides the main space from the kitchen area.

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.

The exterior mixes pale gray wood on the vertical volume, and fiber cement and black brick on the horiztonal volume. The three trees in the front yard were maintained during the renovation process.

Using natural materials is one way of bringing nature indoors. Oiled white ash floors and ceilings, along with Italian poplar and Lawson cypress joinery, are found throughout architect Andrew Simpson’s 538-square-foot home outside Wellington, New Zealand.

In the kitchen, the cabinetry is walnut veneer with a weathered finish applied by cabinetmaker David Rogers. “The process involved sanding and rubbing in stain as well as adding a clear finish,” project architect Eero Puurunen says.

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.

Induction cooktops, growing steadily in popularity due to their energy efficiency and speed, are part of the offering as well as as a selection of exhaust hoods.

Rian and Melissa Jorgensen's 2 Bar House in Menlo Park boasts all the usual green design suspects: energy-efficient lighting, good insulation, renewable material finishes, radiant heat, and the roof is pre-wired for future PV panels. Executed by Feldman Architecture, the house requires only natural lighting during the day which keeps energy costs way down. Still, the most stunning aspect of the green design is the living roof planted with succulents, aloe, viviums, and ice plants. "I'm absolutely glad that we did it," says Melissa. "It turned out so well and I really enjoy sitting up there and taking advantage of it as much as I can. It's very peaceful." Read more about this total remodel here.