7 Answers

You may get an idea from here  http://www.hgtvremodels.com/outdoors/scale-plans-of-your-landscape-design/index.html

The question is much demanding,rather I would say it is much a relevant question because for such issues one really needs a bit consultation.I would prefer  *(Ad link removed by Moderator Ducky)*   professional for it.

....no mowing required 

Bulldozer and a bottle of real expensive Cognac.!

http://www.yourhome.gov.au/you-begin/design-process    you might want to look at this..>>>>>>><<<<<<<<..

Before computers, physical models were made to scale so the engineer could better understand the effects of changes in a landscape. Scale modeling is practiced by Model Railroad enthusiast and Doll Houses are made to better understand the effects of change. Hollywood is most active in model work for cinema graphics in the movie industry.  

good post