Two appliances and crews from Aylesbury and two from Thame attended, along with one officer.
The fire was in one room of a two-storey, multi-occupancy, commercial building. It caused light smoke logging to a communal hallway.
The building was evacuated.
The firefighters used:
- Four sets of breathing apparatus
- One hose reel jet
- A positive pressure ventilation fan
The room was fully damaged by smoke.
A fire investigation is underway, and Thames Valley Police have been notified of the incident.