Emergency services were called to the property in Heysham Drive, Holm Wood, at midday.
The fire is understood to have been deliberately started by setting a rubbish bin on fire, which ignited the front door.
The man was examined by paramedics.
When The Telegraph & Argus visited the scene just after 3pm, the entrance was pitch black and the fire appeared to have spread up the walls and onto the roof.
Full statement from West Yorkshire Police
A spokesperson for the force said: “At 11.57am this morning (Friday, January 3), officers were called to reports of a fire in Heysham Drive, Bradford. .
“It is understood that a mobile bin was set on fire and it struck the front door of the property.
“The man was examined by paramedics as a precautionary measure.
“Initial investigations indicate that the fire was started deliberately and a crime of arson has been registered.
“A scene was set up while police carried out inquiries.
“Anyone with information should contact police on 101 or use the louse chat feature at www.westyorkshire.police.uk/livechat, quoting crime tip number 13240003869.”
Fire department statement
A spokesperson for West Yorkshire Fire and Rescue Service said: “We can confirm that crews from Odsal and Holmfirth are currently on scene, along with Yorkshire Ambulance Service (YAS) and West Yorkshire Police (WYP).” .
“The incident began at 11:50 a.m. following reports of a fire on Heysham Drive, officials reported.
“The fire is under control.”
