(a) To the extent that funds are available, the department shall make grants to cities, counties, cities and counties, or transit agencies for the provision of infrastructure necessary for the development of higher density uses within close proximity to a transit station, or to facilitate connections between that development and the station.
(b) To the extent that funds are available, the department shall make loans for the development and construction of a housing development project within close proximity to a transit station. To be eligible for a loan, at least 15 percent of the units in the proposed development shall be made available at an affordable rent or at an affordable housing cost to persons of very low or low income for at least 55 years. Developments assisted pursuant to this subdivision shall be on parcels at least a portion of which are located within one-quarter mile of a transit station. A housing development project may include a mixed-use development consisting of residential and nonresidential uses.
(c) As used in this part, “transit station” shall have the same meaning as defined in subdivision (b) of Section 65460.1 of the Government Code.