The Board may hear and approve exceptions as specifically authorized herein, which are in harmony with the purposes and intent of this Zoning Ordinance, and which will not adversely affect the public interest. The following exceptions may be granted by the Board, after written application is submitted therefore, and after the required public hearing is held:
(a) The location of a temporary building for commerce or industry in a residence district which is incidental to the residential development, such permit to be issued for a period of not more than one year.
(b) The location of a temporary sign pertaining to the development of the land upon which the sign is located, provided it is not located in a required front yard, such permit to be issued for a period of not more than one year.
(c) The enlargement, erection and use of a building or the use of premises in any location for a railroad or other public utility purposes not otherwise allowed by this Zoning Ordinance, which the Board deems reasonably necessary for the public convenience or welfare.
(d) A reduction of the parking and loading requirements of this Zoning Ordinance whenever it has been clearly demonstrated that the provision of the full parking or loading facilities is unnecessary, or where such a requirement would impose an unreasonable hardship upon the use of the lot, as contrasted with merely granting an advantage or a convenience.
(e) The placement of required parking spaces on a parcel separated from the parcel upon which the building or use served by such parking spaces is located, provided that the parking spaces are sufficiently close enough that they will serve the intended purpose and provided a written agreement assuring the retention of the parking spaces is properly executed and filed with the application for a zoning certificate.
(f) The waiver of yards or setbacks and screening required for a parking area adjacent to a residential district, whenever a wall of approved height, design and material is erected.
(g) Within any district, the placing of more than one main building on a lot, when all of the buildings are intended to be operated as a single enterprise and the lot and all portions of it are owned, leased or under option by a single party. In such cases, the yard requirements shall apply along all edges of the lot, but shall not be required for the internal arrangement of the buildings on the lot, provided that adequate light and air will reach all habitable rooms. Height, bulk and lot area per family shall apply as in the case of one main building located on a lot. An application for the placing of more than one main building on a lot shall be accompanied by a Site Plan. Proposals for placing more than one residential main building on a lot shall be referred to the Planning Commission for review of the Site Plan, and Planning Commission approval of the Site Plan shall be prerequisite to final approval by the Board.
(h) The waiver of screening required in front of parking areas across a street from a residentially zoned parcel.