All types of porches need permits. The extent of the project will
dictate the type of information your application will need to include.
If you are building on an existing foundation then verification for
what that foundation is will need to be done either through documents
research or digging to expose the footings . If you are adding a porch
in a location where there is no foundation or decking, then you'll need
to include a site plan complete with lot lines and distances .
Porches that are to be open to the interior of the home and are heated and cooled are considered an addition to the home and not a porch. A three season porch is one that does not include heating and cooling.