If you need help filling out the application, there are tutorials on the Building Department website you can refer to. Don't wait get your plans NOW!This digital plan package is a downloadable Print PDF Package (non-modifiable, print only). Application for Planning Review: Complete ALL applicable items on the form, including signatures of Applicant and Property Owner(s), and submit the original. Building plan review requirements for commercial new construction, additions, and shell buildings. Building and subtrade permits are done on the HillsGovHub online system. 3) Existing: Provide a plan indicating the existing conditions and configurations include photos of the area. Go to the Building Department and fill out a Building Permit Application. 2. 775 square feet of floor area for two-bedroom (2-br) apartments. 950 square feet of floor area for three-bedroom (3-br) apartments.