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.
Building permits are needed for more than just new home construction. The national average cost of a building permit is $853, with most homeowners spending between $366 and $1,340.This data is based on actual project costs according to HomeAdvisor members. Depending on the area, they may be required for additions, renovations and even electrical or plumbing projects.he actual cost of a building permit will depend on the location of the property and the type of work that will be performed there. For many homeowners, the process of applying for a permit may seem daunting, but it cannot be avoided without risking fines or worse.