Old bus office
This home office was created using half the front end of a broken down bus. Check out the link for more pictures.
Source: http://www.reddit.com/r/pics/comments/y267n/bus_office/
The Hackney Shed (Hackney, UK), By Office Sian Architects
Source: http://www.officesian.com/projects/hackney.html
Cutchogue Waterfront Residence (New York, USA) by Foley Fiore Architecture
Source: http://www.foleyfiore.com/#/test-gallery/
Carmel Valley House (California, USA), renovated by Sally Sirkin Lewis
Source: http://www.architecturaldigest.com/decor/2013-02/before-after-contest-home-office-renovation
Norwich Drive Residence (Hollywood, USA), by Clive Wilkinson Architects
Source: http://www.clivewilkinson.com/portfolio_page/norwich-drive-residence/
Loft Design by Uglyanitsa Alexander
This one's computer generated - but it's still easy on the eye...
Source:http://mydesign-review.blogspot.be/2012/08/loft.html
Architect's Studio (Maine, USA), by Kevin Browne Architects
Source: http://kevinbrownearchitecture.com/projects/architects-studio/
Unknown.
Alwyne Place (London, UK), by Lipton Plant Architects
Source: http://www.lparchitects.co.uk/alwyneplace