(a) Completing improvements.--The declarant shall complete all improvements labeled "MUST BE BUILT" on plats or plans prepared pursuant to section 3210 (relating to plats and plans).

((b) Repair and restoration.--The declarant is subject to liability for the prompt repair and restoration, to a condition compatible with the remainder of the condominium, of any portion of the condominium affected by the exercise of rights reserved pursuant to or created by sections 3211 (relating to conversion and expansion of flexible condominiums), 3212 (relating to withdrawal of withdrawable real estate), 3217 (relating to declarant's offices, models and signs) and 3218 (relating to easement to facilitate completion, conversion and expansion).

(c) Substantial completion prerequisite to conveyance.--A unit which is part of or constitutes a structure shall not be conveyed unless all structural components and common element mechanical systems of the structure containing or constituting such unit or units are substantially completed to the extent required of declarant so as to permit the use of such unit or units and any limited common elements appurtenant thereto for their intended use. Such substantial completion shall be evidenced by a recorded certification of completion executed by an independent registered surveyor, architect or professional engineer with regard to any such structure.

(d) until the unit is substantially completed in accordance with the descriptions set forth in both the declaration pursuant to section 3205(4) (relating to contents of declaration; all condominiums) and in the public offering statement pursuant to section 3402(a) (relating to public offering statement; general provisions) as evidenced by a recorded certificate of completion executed by an independent registered surveyor, architect or professional engineer.

(e) Construction of section.--Nothing contained in this subpart shall prevent the offering for sale of a unit or interest in a unit or the execution of any agreement to sell and purchase a unit or any interest in a unit (as opposed to actual conveyance) prior to the completion of the unit or any other portion of the condominium.