Clause 158

When any authority has incurred expenses or costs in or about the execution of any work, which are, under this Ordinance, payable by or recoverable from the owner or owners, the authority may either recover such expenses and costs in manner hereinbefore provided or, if it thinks fit, may take an engagement or engagements from such owner or owners for the payment of such instalments as will be sufficient to defray the whole amount of such expenses and costs with interest thereon at a rate not exceeding six per centum per annum, within a period not exceeding ten years.

Upon default in payment of any instalment or interest upon the date appointed for payment thereof by any such engagement, the whole of the balance then outstanding of such amount, together with any interest in arrear, shall immediately become due and payable and, notwithstanding any change in the ownership or occupation of the premises since the date of the engagement, may be recovered by the same means and in like manner as provided in section 157 of this Ordinance.