香港宏福苑火灾独立调查委员会公布最终调查报告，认定大火由烟头引起，现场堆积的大量易燃施工杂物加速了火势蔓延 [1]。起火地点位于宏昌阁104室及105室外的平台，现场堆积残留物高达2公尺，包括安全网、发泡胶板等物品 [1]。调查人员在现场发现多个烟头 [1]。
报告指出，多项防火设施失效加剧了灾情。火警系统有6座未能启动，缺乏阻燃安全网及遮蔽窗户的发泡胶板等因素导致居民逃生时间有限 [1]。这场大火造成严重后果，8栋大楼中有7栋被焚毁，共造成168人死亡 [1]。调查委员会经过30场听证会的深入调查后，认为这场大火极有可能属于意外事故 [1]。
An independent investigation committee examining the Hongfu Garden fire in Hong Kong has concluded that the blaze was triggered by a cigarette butt, with accumulated construction materials at the scene accelerating its spread [1]. The fire, which occurred on November 26, 2025, claimed 168 lives and destroyed seven of eight buildings in the complex [1].
The investigation determined that the fire originated on a platform outside units 104 and 105 of Hongchang Pavilion, where debris had accumulated to a height of approximately two meters, including safety netting and foam boards [1]. Six fire alarm systems at the site failed to activate during the emergency, while the lack of flame-retardant safety nets and foam board coverings over windows severely limited residents' escape time [1]. Multiple cigarette butts were discovered at the ignition point, leading investigators to conclude the fire was most likely accidental [1].
The committee's findings are based on extensive evidence gathering, including 30 hearings conducted during the investigation process [1].