By Erica Broberg Smith
Deborah Berke Winnie Au
The ocean is a presence at the Dune Road House. Chris Cooper
An old house with resurgent life and family treasures
The photographs on the wall above are of the indigenous people of Papua New Guinea, with whom Peter Matthiessen and colleagues spent six months.
Alex Matthiessen, above, is seated on a settee in the sitting room. Below, the fireplace in the original kitchen was one of the reasons he bought the house. It now heats the combined sitting room, dining room, and kitchen.
Above, the folding doors on a corner cupboard in the kitchen were designed for access to a huge single shelf. Below, two rooms were combined to create an ample master bedroom.
A close-up of the Papua New Guinea photos that hung in Peter Matthiessen’s Sagaponack house.
A right whale skull has been moved from the Saga­ponack house to Sag Harbor.
The patio, surrounded by plantings rather than a lawn, features an Indonesian teak daybed.

By Justin Spring
A renovation that reflects its occupants’ passions
Julie Small-Gamby stands at the entrance to the addition, which enlarged the house and dramatically changed the interior. Durell Godfrey
The new staircase makes art the focus.Matthew Carbone
Peter Gamby rakes his Japanese garden after every rainstorm. Durell Godfrey
At top, Julie Small-Gamby’s artwork frames the view of Hog Creek from the dining room. Below, a tall Zen archery bow stands to the right of the windows in the meditation room.
Above, first-floor spaces were redesign­ed to serve as an art gallery. Below, the first-floor hallway was widened to create a visual flow from front to back.
Glass doors in a bedroom provide views of the meditation room and the outdoors.
Peter Gamby moved a moss-encrusted boulder from the woods to the garden.Durell Godfrey Photos

Native trees and plants, natural grasses and stones, organic, low-maintenance meadows, and water, water, everywhere, without any nitrates or other chemicals to poison it
Water — keeping it clean, not green — is the theme of Saturday’s Guild Hall garden tour. Above, on Burnett’s Creek on Water Mill, the Rosenberg garden features an ever-blooming mix of salt-air-loving plants. Looking back up from a ginormously glamorous pool complex complete with Italianate fountains, below, clouds of pink, white, and blue frame the Lipschultz house in Sagaponack. Durell Godfrey Photos
In Bridgehampton, the Adamson garden descends in three levels to the waters of little-known Kellis Pond. The closer to the water, the shadier it gets and the more ferns grow.
On Mecox Bay in Water Mill, an ultra-modern house built out from an old one after Hurricane Sandy has a knockout view across the bay to Flying Point Beach.

Mile-a-minute is an annual vine native to Japan and China, Southeast Asia and India
Weed specialists hope that insects like the weevil, right, will keep the spread of “mile-a-minute vine,” in a close-up, left, with berries, in check. Abby Jane Brody and Andy Senesac Photos

The tension between change and tradition
At the Covello garden in Sag Harbor, transparency is played with by pruning trees and shrubs in a way that allows a glimpse of what lies beyond. Abby Jane Brody

His spiral staircase is a work of art
From left: The newel post at the second floor landing shows Hans Hokanson’s chiseling and carving skill. The whole staircase can be seen in the round now that a wall between the living room and kitchen was removed.
Mortise and tenon joints rather than nails or screws guarantee a long life.