China's biggest 房地产公司 — Evergrande (恒大), Country Garden (碧桂园), Vanke (万科) — dominated the 2000s-2010s boom. The sector's crisis, triggered by Evergrande's 2021 default, reshaped China's economy and is still unfolding.
usage
房地产 literally 'house-land-property' covers both buildings and the land they stand on. In everyday speech often shortened to 房地产商 (developer) or 开发商 (kāifāshāng, developer).