Real estate developers are asking Beijing to ease rules that call for smaller apartments, part of the central government's latest measures to cool an overheated real estate market, Hong Kong's Standard reported. All local governments now have to make sure 70% of new units built are under 90 square meters. One developer, Guangzhou R&F, said developers that focus on medium and higher-end housing will find it difficult to meet the new targets. Chairman Li Sze-lim told the newspaper that one suggestion would be to relax the restrictions to 110-120 square meters. Last month the government also raised the minimum down payment requirements for buyers of larger units.