"This is a green house which aims to teach you how to be environmentally friendly in your home. Who knew that it could be so stylish? This is a modular home.

It has to be the most stylish one on the planet. It's only 725 square feet -- that's part of the message -- to be green, you don't need to build so big. Since it's modular, you can buy other pieces and add on to it."

"Builders plopped down the 800-square-foot structure in just a day....the one-bedroom house costs a mere $199 per square foot, and that's with all the fancy fixings like a stereo system and rosewood floors.

The home was dubbed the mkLotus house by its designer, Michelle Kaufman Designs. The exterior is smart and sleek, with double-paned, floor-to-ceiling windows surrounding the living room and sustainably grown red balau wood and slabs of fly-ash concrete siding the back half....

According to XtremeHome CEO Tim Schmidt, without all the extras, an mkLotus could cost as little as $64,000, and he can have one good to go in less than six months."

"If building an eco-friendly house is a stretch, how about a green in-law cottage?

[The] house...'was designed as an oasis,' Kaufmann says. 'It can be perfect for a vacation home, or a home where you feel like you're on vacation.'

The popularity of the two- to four-bedroom Glidehouse brought countless inquiries for in-law units and cottages, said Rebecca Woelke, spokeswoman for Michelle Kaufmann Designs.

'We wanted to give clients a different type of design in a one-bedroom layout,' Woelke said, something that 'opens entire living spaces to the outdoors and brings the outdoors in.' To do that, mkLotus' signature feature is its NanaWalls, floor-to-ceiling glass doors in the living room that fold up like an accordion to welcome nature into the home. 'This house blurs the boundary between the interior and exterior.'"