Except as provided in this section, nothing herein shall require any change in the plans, construction or designated use of a building or structure for which a building permit has been lawfully issued prior to or, under the circumstances noted below, within 60 days after the effective date of this chapter, provided that the proposed use complies with the use requirements of this chapter, and further provided that construction shall begin within six months of the date of such permit; building permits shall expire six months following the date of issuance and may be renewed before the expiration thereof upon written application to the Building Inspector and payment of the required fee.

In addition, if the Building Inspector determines that an application, with accompanying construction plans, for a building permit filed prior to the effective date of this chapter meets all requirements of the zoning laws in existence as of the date immediately prior to the effective date of this chapter, has received all necessary conditional or final approvals by the Planning Board or the Zoning Board of Appeals or other authorized approving agency, and complies with the use requirements of this chapter, then the Building Inspector shall issue all necessary permits within a reasonable time, but not longer than 60 days from such date, provided the applicant has taken all steps deemed necessary by the Building Inspector to obtain such permit.

Notwithstanding the preceding, the Building Inspector may require any such plans to be modified to comply with the requirements of this chapter to the extent that the agency authorized to approve such a plan determines such compliance to be reasonable and practical.

The ordinance known as the "Zoning Ordinance of the Village of Roslyn Harbor, New York" (as amended through May 14, 1958) and all the amendments thereto are hereby repealed as of the effective date of this chapter.

Nothing in this chapter shall repeal, delete or modify in any way any covenant or restriction which is part of a prior-approved application or any conditions which are attached or related to any prior approval.