A grant for conversion, acquisition, renovation, equipment, or construction may not exceed $600,000. A grant for the development of a master plan may not exceed $15,000. Except as provided in §E of this regulation: A State grant may not exceed 50 percent of the total cost of eligible work; At least 50 percent of the cost of eligible work shall be provided from local contributions. If a federal grant is available for the project, unless federal law is to the contrary, the federal grant shall be applied to the costs of the project before a grant under this program is applied. If a federal grant is applied, a grant under this program may not exceed 50 percent of the total cost of eligible work remaining after the federal grant has been applied, except as provided in §F of this regulation. At the discretion of the Board of Public Works, a grant may exceed 50 percent of the cost of eligible work, if: The grant is for conversion, renovation or planning, design and construction of an elderly citizens activity center; The value of property and improvements made available by the local government, including but not limited to eligible work, or the value of the center to be renovated, equals or exceeds the amount of the State grant; State funds have not been used for the acquisition, construction, or maintenance of any real property or improvements made available by the applicant, or for the building to be converted or renovated; and The State is not responsible for any bonded indebtedness in connection with any real property or improvements made available by the applicant, or in connection with the building to be converted, acquired, or renovated. A grantee that has in the past received funds in a total amount of less than $300,000 for an eligible project under this program may receive a grant for additional eligible work in an amount equal to the difference between the prior grant and $300,000, if the project meets the other requirements of this chapter. In determining the amount of the grant, the Department shall also consider: The senior citizen population density of the area for which the project is proposed; The proximity of the project to existing senior centers; and Localities eligible for funding that have not received funds in the past.