The fees authorized pursuant to this chapter may be paid on the date of issuance of the building permit for the property on which the development project is proposed and shall become due and payable on the date of final inspection, or the date the certificate of occupancy is issued, whichever occurs first. If any fee authorized pursuant to this chapter is not fully paid on the date of issuance of the building permit, the developer subject to the fee, as a condition of issuance of the building permit, shall execute a deferral agreement to pay the fee, or applicable portion thereof, at the time the fee becomes due and payable. The fee secured by the deferral agreement shall be calculated on the basis of the fee in effect at the time the fee becomes due and payable. The deferral agreement shall contain the legal description of the property on which a development project is proposed, shall be recorded in the office of the county of San Bernardino auditor/controller recorder and, from the date of recordation, shall constitute a lien for payment of the fees. Furthermore, the fees created pursuant to this chapter shall be calculated on the basis of net acreage. For development projects containing less than one net acre, the fee shall be calculated on the fraction of an acre involved in the development project. (Ord. 279 § 2, 2008; Ord. 50 § 8, 1990)