(1) No compensation shall be claimable by any person for any damage or loss which he may sustain in consequence of the refusal of the Board of sanction to the erection of any building or in respect of any direction issued by it under sub-section (1) of section 238.
     (2) The Board shall make compensation to the owner of any building for any actual damage or loss sustained by him inconsequence of the prohibition of the re-erection of any building or of its requiring any land belonging to him to be added to the street:
     Provided that the Board shall not be liable to make any compensation in respect of the prohibition of the re-erection of any building which for a period of three years or more immediately preceding such refusal has not been in existence or has been unfit for human habitation.