One mobile home for temporary use only on an individual lot, on which a single-family home is being built. Such temporary use shall be for an initial period of two years with the optional extensions of time for one-year increments; provided, that the applicant submits a progress report to the building inspector every six months, unless the building inspector issues an occupancy permit for a non-mobile home and the mobile home is removed within 30 days thereafter. A bond will be required of the applicant by London Grove Township. Said bond shall be used to ensure removal of the temporary residence and shall be released upon completion of the permanent residence.