viva gt check your local zoning and see what the restrictions are. You can always apply for a minor variance to increase the height. If you have no neighbours around you then you should have a better chance of getting it approved.
this is a new estate lot home area and i am working with the builder/developer. there would be no way i could do this on my current property.
might work if i attach with a carport/breeze-way (roof and footings attached and no front or back walls). that will make it part of the home and not an outbuilding, therefore the roof height can be similar to the home.
it's pretty sad when you own a piece of land and you cant do what ya want without jumping through hoops. back east, you can pretty much do what you want. all the townships want is the money.