From a local paper:
Firefighters responded to a fire alarm at 136 Lowell St. at 6:19 p.m. last Friday, Sept. 19. On arrival, they saw smoke billowing from the right side of the house. One room on the first floor was completely enflamed, and the flames extended to the second floor as well.

There was heavy smoke throughout the building, and extensive ventilation was performed by the ladder companies, fire reports state.

Engines 1, 2, 3, 7, Tower 1 and ladders 2 and 3 responded to put out the fire.

None of the occupants were home and no one was injured. Building damage is estimated at $150,000.

While the cause of the fire is unknown, Kelleher said "we believe, somehow, the electrical system played some part in it, but the incident is still under investigation."

The owner, who lives in Belmont, and the Fire Investigation Unit were notified. Inspectional Services was called to the site and power cut to the building.