According to the company, the parking area was designated for "test and written-off vehicles," and the fire has since been extinguished. The statement added that there were no reported injuries.
The local fire department had earlier reported the incident, while footage circulating on social media, verified by Reuters, showed thick black smoke spreading across the sky, with flames extending along a large portion of the multi-story building. Firefighters and police were dispatched to the scene.
BYD's headquarters is located in the Pingshan district of Shenzhen, one of the major industrial centers in southern China.
In the capital market, a mild reaction was recorded, with BYD's stock falling by about 0.6 percent.
Experts warn that fires in electric vehicles differ from those in internal combustion engine vehicles. Such fires often last longer and are harder to extinguish due to the risk of reignition.