The alarm was sounded over the fire in a building on Jungfrugatan at around 9.30am. By the time fire services arrived, the owner had managed to leave the apartment.
The fire had by that time managed to take hold and smoke had spread into the stairwell and central courtyard. A fire-damaged gas pipe contributed to the intensity of the fire but was later successfully turned off.
Five fire stations were involved in fighting the fire with 35 fire fighters deployed.
The apartment was completely destroyed, with burning embers in the walls and roof construction complicating work to extinguish the fire.
“It is an old house,” said Åsa Dehlin at the Stockholm fire service.
Around ten residents of the house were forced to evacuate the building with the help of smoke divers.
Smoke damage in the building is substantial and residents were not able to return to their apartments on Sunday. The local church of Hedvig Eleonora opened its doors in connection with the fire to help those in need with social services in attendance.
The cause of the fire remains unknown with police hoping to learn more from a forensic examination to be conducted during the course of Monday.