Big fence
Smooth criminal
Norwich Drive Residence (Hollywood, USA), by Clive Wilkinson Architects
Source: http://www.clivewilkinson.com/portfolio_page/norwich-drive-residence/
Cutchogue Waterfront Residence (New York, USA) by Foley Fiore Architecture
Source: http://www.foleyfiore.com/#/test-gallery/
House in House (Tokyo, Japan), by MAMM Design
Source: http://www.mamm-design.com/?p=78
Gregory Han's Black Hole Home Office
Source: http://www.apartmenttherapy.com/the-black-hole-closet-home-off-123312
OfficePod
These small prefabricated pods are ready-made, self-contained home offices that can be installed wherever there's space.
Source: http://www.officepod.co.uk/gallery/