Thick plumes of smoke billowed out of the Raven Hotel in Droitwich Spa as a fire raged through the building on Sunday afternoon.
The derelict building, containing lots of old timber, went up in flames quickly as firefighters tried to save the Grade II-listed site.
People were forced to stand back as they watched the roof collapse inwards as the flames took hold.
The hotel, which closed over a decade ago, was in the middle of a conversion with developers looking to build new homes, a brine bath and a gin bar on the site.
Last year, Wychavon District Council threatened legal action on the owner of the Raven Hotel in Droitwich Spa forcing them to begin works.
On Sunday, Hereford and Worcester Fire & Rescue Service confirmed that six fire engines, along with specialist vehicles, were at the scene.
No injuries have been reported at this stage. The cause of the fire has not yet been established.
Barney Davis