This chapter shall not apply to buildings for which an application for a building or mechanical permit was received prior to the effective date of this chapter unless the application is denied or the permit issued pursuant to such application has expired or been revoked in accordance with Article I or Article III of this chapter.

Nothing in this chapter hereby adopted shall be construed to affect any suit or proceedings pending in any court, or any rights acquired, or liability incurred, or any cause or causes of action acquired or existing, under any act or ordinance hereby repealed, nor shall any just or legal right or remedy of any character be lost, impaired or affected by this ordinance.