(c) Notwithstanding article II and article XI of this constitution, no local government, including the electorate of a local government exercising the initiative power, may impose ad valorem taxes on real property, except as provided in section (3)(a)(1) of article XIII D, any non-ad valorem general tax upon a parcel of real property or upon any person as an incident of real property ownership, or any transaction tax, sales tax, documentary transfer tax, or other tax related to real property sales, transfers, documents or recordings except for the tax, and not exceeding the rate, specified in subdivisions (a) and (b) of Revenue and Taxation Code section 11911, as it existed on January 1, 2025.