Three fire crews from across the city spent three hours tackling the blaze, which resulted in the partial closure of the road.
A spokesperson for Mid and West Wales Fire and Rescue Service said: “At 7.24pm on Wednesday, July 10th, Mid and West Wales Fire and Rescue Service crews from Swansea West, Gorseinon and Swansea Central Fire Stations were called to an incident on Dunvant Road, Swansea.
“Crews responded to a fire located on the first floor and attic space of a derelict property and utilised one hose reel jet, one 13.5 metre ladder, one seven metre ladder, one short extension ladder, two breathing apparatus sets and four thermal imaging cameras to extinguish the fire.

(Image: Mid and West Wales Fire and Rescue Service)

(Image: Mid and West Wales Fire and Rescue Service)
“Crews continued to dampen down hotspots after the fire had been extinguished. South Wales Police was also in attendance to assist with traffic management as one side of the road was closed during the incident.
“Crews left the scene at 10.29pm.”
The spokesperson added: “It is believed that this fire was started deliberately.”
(Lead image: Mid and West Wales Fire and Rescue Service)