"Buildings" and land "uses" in existence or for which building permits have been approved on the effective date of this amended chapter shall be subject to the "parking space" requirements of this chapter on the date of such permit or the date the "use" was established, in the case of existing "uses," provided that any parking facilities then existing to serve such "structures" or "uses" shall not in the future be reduced, except where they exceed such requirements, in which case they shall not be reduced below such requirements. Required parking facilities shall, however, be provided as a condition for the issuance of any building permit for any enlargement of such "structures" or "uses" in the future, but in the case of exceptional difficulty or unusual hardship to such properties arising out of this requirement, appeal may be made to the Board of Appeals. In acting upon such case, the Board of Appeals shall require such degree of conformance as it may deem reasonable for that part of the "structure" or "use" that is legally nonconforming but shall not waive any part of the requirement for that part of the "structure" or "use" that constitutes an enlargement or expansion and shall not permit reduction or elimination of whatever quantity of parking may already be in existence unless it is in excess of requirements.

Required off-"street" parking facilities which, after development, are later dedicated to and accepted by the Town shall be deemed to be for any public parking "use" permitted by the Town Board.

Off-"street" motor vehicle parking facilities shall be provided as follows, except as provided above or where additional parking requirements may be made as a condition of the issuance of a special permit under Article VIII:

Off-"street" loading. Except for residential "uses," off-"street" loading facilities shall be provided as follows: One off-"street" "loading space" shall be required for the first 4,000 square feet of "gross floor area," or ground area in the case of shade sheds, and one additional space for each 10,000 square feet or major portion thereof. Such "loading space(s)" shall be so located that, when in "use," it will not interfere with the safe movement of pedestrians and vehicles to, from or within the "parking area."

Reasonable and appropriate off-"street" parking and loading requirements for "structures" and land "uses" which do not fall within the categories listed above shall be determined in each case by the Planning Board, which shall consider all factors entering into the parking and loading needs of such "use."

Where the Planning Board determines that, because of probable variations in the time of peak usage of "parking spaces" serving different types of land "uses" or because of the nature of a particular "use" or "uses," the number of off-"street" parking and "loading spaces" required by this chapter may be excessive, the Board may allow a reduction in the total number of such spaces to be initially improved, subject to such conditions as said Board may require to assure the improvement of the remaining spaces at such time as the Board may determine their necessity.

Where two or more different "uses" occur on a single "lot," the total amount of parking and loading facilities to be provided shall be the sum of the requirements for each individual "use" on the "lot," except that the Planning Board may approve the joint "use" of parking and "loading space" by two or more establishments on the same or on contiguous "lots," the total capacity of which is less than the sum of the spaces required for each, provided that the Board finds that the capacity to be provided will substantially meet the intent of the requirements by reason of variation in the probable time of maximum "use" by patrons or employees among such establishment and provided that such approval of joint "use" shall be automatically terminated upon the termination of the operation of any of such establishments.

The required off-"street" parking facilities for "structures" and land "uses" which are developed after the effective date of the amended chapter shall be provided on the same "lot" or "premises" with such "structure" or land "use," except that off-"street" "parking spaces" required for "structures" or land "uses" on two adjoining "lots" may be provided in a single common facility on one or both of said "lots" and except that the Planning Board may permit all or part of the required spaces to be located on any "lot" within 300 feet of the "building," except in a residential "district," if the Board determines that it is impractical to provide parking on the same "lot" with the "building."

In any residential "district," no unenclosed off-"street" parking facility shall be developed within 25 feet of a "front lot line" or within 10 feet of a side or "rear lot line."

No parking in connection with any nonresidential "use" shall be so located that motor vehicles may enter or leave the "parking area" across a sidewalk except at a point or points approved as part of a plan approved in accordance with the requirements of Article VIII or IX.

No parking required for a business "use" in a business "district" may be provided in a residential "district."

Traffic circulation aisles between rows of "parking spaces" shall be at least 25 feet in width, except that the Planning Board may approve a lesser distance as appropriate for areas with angled or compact "parking spaces." Where such aisles are also needed to carry significant traffic flows to and from other portions of the "parking area" or the "street," the Board may require the width of such aisles to be at least 35 feet.

"Parking areas" shall be reasonably located with respect to the major entrances of the "structure" which they serve. The Planning Board may require as a condition of site plan approval that the location and design of parking, maneuvering and access areas be so arranged that they will be compatible with those existing or planned on contiguous or neighboring properties, including the provision of traffic and pedestrian access connections between such areas.