1 Planning permission-You usually only need to apply for planning permission to convert a garage when you intend to extend the actual size of the garage. 2  However, check with your local authority as the precise rules do differ. Double garage-You may either convert the whole area, or just the nearest side to your house. 2  If you convert it all, you can expect to add around 300 square feet of floor space to your home. 3  Tandem garage-As before, converting only the back will leave you with the best of both worlds.
Below is an outline of the main components of a shed or garage and what you can expect to pay: Sheds and Garages Kit Cost $3,500 â $28,000. These range from a single car garage to a large fully lock-up workshop. Sheds and Garages Permit Cost Approximately $900. Plus warranty insurance of $750 if the job is worth over $12,000. (Central Steel Build is a registered builder). Sheds and Garages Footing Costs $400 â $1900.
The sheds are also conducive for making creative customizations, so you can conveniently add shelving, lofts, skylights, windows and other features. Wooden sheds tend to be more expensive than metal because of the higher cost of the lumber, so their average price usually ranges from around $600 to $3,000.