Application for building permits shall be made by the owner or his agent to the Building Commissioner on forms prepared and kept on file in the office of the Building Commissioner. Such application shall describe the location of the proposed work by setting forth the correct legal description of the land upon which the building, structure or part thereof is to be erected, constructed, added to, altered, or repaired and the street name and number assigned to the site; the purpose for which the building or structure is designed to be used; the length, width and height thereof; the number of rooms; the total cost of the work proposed to be done under the permit sought; the name and address of the owner, or his agent or architect; and the name of the licensed general contractors and subcontractors such as mason, carpenter, sewer builder, plumber and electrician. Application for a building permit shall also be accompanied by a plat of survey, showing the proposed location of the building to be erected on the lot, piece or parcel of land. The application shall also contain an agreement to be signed by the owner, his agent or architect, conditioned that he, or his duly authorized agent or architect, if granted the permit sought, will construct the work in accordance with the description set forth in the application and accompanying plans and specifications.