Housing Trust Fund and Developer's Agreement. As a condition of preliminary subdivision approval and prior to commencing site work and/or prior to final subdivision approval, the applicant shall enter into a developer's agreement with the Township of Sparta. The developer's agreement shall provide that the applicant shall contribute 6% of the gross sales price of each of the additional residential sites or residences created by the incentive cluster to the Sparta Township Housing Trust Fund. This 6% contribution shall be made for each residential site created in addition to the one residential site per five acres. The Housing Trust Fund contributions shall be paid prior to transfer of any deed of conveyance and prior to the issuance of any building permit on said additional lots. The Housing Trust Fund shall be contributed to and utilized in accordance with the requirements of the Housing Trust Fund. As an additional incentive to Affordable Housing Trust Fund contributions and public open space dedication within a zone, an applicant for a major subdivision may apply for approval from the Planning Board of an incentive cluster subdivision even if it does not yield any additional lots. However, if the applicant elects to utilize the incentive cluster option but does not obtain one or more additional incentive lot(s), then said applicant shall pay to the Township Housing Trust Fund 6% of the gross sales price for one lot and house in the first one to five lots and a 6% payment for one of each of the five lots and houses beyond the first five lots. The total contribution to the Housing Trust Fund shall be based on the value of the land and the new structures.