On August 30, 2021, the Hubei Provincial Department of Housing and Urban-Rural Development and the Hubei Provincial Market Supervision and Administration Bureau jointly issued the ' Design specification for energy efficiency of Passive Ultra-Low Energy Residential Buildings '.

This specification is organized by the China Urban and Rural Construction Industry Collaborative Innovation Platform (formerly China Urban and Rural Construction Industry Alliance), edited by 

more than ten platform member units such as Zhongnan Architectural Design Institute Co., Ltd., and nearly 20 member units. It lasted three years. just finished. This specification clarifies the technical indicators, design and technical points of passive ultra-low energy consumption residential buildings in different climatic regions of Hubei, and provides guidance for the design of passive ultra-low energy consumption residential buildings in Hubei.