Firefighters were called to the blaze at Archway Sheet Metal Works, on Paxton Road just yards from the club's White Hart Lane ground in north London, shortly after 5am on Tuesday
The firm is located on the final piece of land the football club needs to begin a protracted redevelopment of the stadium but the two sides have failed to reach an agreement after seven years of negotiation
Earlier this year Archway and its owners, the Josif family, challenged a compulsory purchase order - triggering a High Court case and a new delay in the start of the project.
London Fire Brigade said the cause of the fire is under investigation
A spokesman said: " Six fire engines and 35 firefighters and officers are currently attending a fire at a metal works on Paxton Road in Tottenham
"Half of the ground floor and the whole of the first floor were alight, but the fire is now under control.
"Crews will remain at the scene this morning damping down remaining hot spots
There are no reports of any injuries.
"Fire engines from Tottenham, Edmonton and Stoke Newington fire stations are at the scene."
The company has previously claimed it has received threats and abusive calls from Tottenham fans.
There were mischievous suggestions by football fans on Twitter about the timing of the fire, including several from supporters of the club's bitter rivals Arsenal.
Source : PA
Source: PA