This week's picks:

+ The Johnson Creek weeHouse prefab at Jetson Green, "a 2,200 sf retreat home consisting of the main living area for daily activities and a small tower for less intenstive activities, like sleeping. The two parts are connected by a patio bridge and the entire home is surrounded by the heavily wooded site.".

+ Dan Hisel's Newburyport green renovation at AMNP, "His design preserved the exterior simplicity of the house, so that it exists in harmony with its neighbors, while completely transforming the interior to accommodate the Ultmans' dream to live in open, connected spaces that would bring the outdoors in.". Via Boston.com.

+ Shuhei Endo's 130 sq. meter Rooftecture S house at Arch Daily, "A small residence for a couple, clinging onto a steep incline that faces Setonaikai (Inland Sea) and bordered by a Y-intersection at the base of a hill, in a relatively old residential zone developed in tiered platforms.".

+ Arkhefield's energy efficient Ballandean House at Arch Daily, "located on a North facing gently sloping site on a vineyard in the heart of the Granite Belt."

+ Mitsuhiro Nakawaki/ 73ARCHITECT's kasuga K house in Hiroshima at architecturephoto.net.

+ Mitsuhiro Nakawaki / 73ARCHITECT's nara N house in Nara, Japan at architecturephoto.net.

+ Innovarchi's Timber House of the Future, part of a "public exhibition [that] showcased sustainable design excellence and environmental innovations in 6 Houses made from clay, concrete, timber, steel, cardboard, and glass and 2 creative responses that showcase sustainable gardens.". Via Judit Bellostes.

+ Toyo Ito & Associates' Aluminum House Project at Materialicious. Via Judit Bellostes.

+ Zhang Lei's Slit House at Materialicious, the architect "copied the massing of adjacent garden houses from the 1920s, but abstracted their form and used concrete instead of gray brick. He changed materials, he says, because gray brick is no longer made in Nanjing, but concrete is. He used strips of wood just 2 inches wide for the concrete formwork, giving the material the texture almost of a fine textile.". Via Architectural Record, more at chinese-architects.com.

+ Christopher Megowan's polycarbonate annex at Archinect, "a modern 1200 square foot addition onto the rear of a hundred year old Victorian home...".

+ La Dallman's Levy House at Archinect, "This post-tensioned concrete and steel-clad residence sits atop one of the great, deep ravines feeding water into Lake Michigan.".

+ Marc Koehler's square IJburg House at Inhabitat, "the ecological character of the house is reinforced by the use of passive and active solar-energy and an earth heating-pump.".

+ Australian prefab manufacturer Modscape at Inhabitat, "contemporary, functional homes out of modular designs that can be arranged in countless configurations, balancing beautiful architecture with sustainable elements.".