No building or structure shall be erected, constructed, reconstructed, moved, or altered; nor shall any building, structure, or land be used for any purpose other than is permitted in the district in which such building, structure, or land is situated.

No building or structure shall be erected, constructed, reconstructed, moved, or altered to exceed the height or area limit herein established for the district in which such building or structure is situated.

No lot area shall be reduced or diminished so that the yards or other open spaces shall be smaller than prescribed by this order; nor shall the density of population be increased in any manner, except in conformity with the area regulations established herein.

Architectural plans and specifications for any improvements, except improvements in an R-1 district, shall be submitted for review and approval by the planning and zoning board and recommended to the proper city authority before the issuance of a building permit. Submission of plans and specifications on transmittal shall include such information as is necessary to evidence compliance with all requirements of the applicable section of this ordinance. The applicant will be required to furnish evidence establishing that there is adequate capacity in the sanitary sewer system for the sewage which will originate in the proposed project, or if there is a deficiency in the local sewer capacity that such needed additional capacity will be provided by the applicant.