Three people have escaped a suspicious house fire in Woodridge, south of Brisbane, after a two-storey home was engulfed by flames overnight.

Emergency services were called to the property shortly after 9pm on Monday following reports that the house was on fire. Firefighters arrived to find the two-storey timber home heavily engulfed, with the blaze causing extensive damage to the property.

Fire crews were able to extinguish the fire within about an hour of their arrival. The intensity of the blaze resulted in substantial damage to the home, while neighbouring properties were also affected.

The three people who were inside the house managed to escape before firefighters arrived. No injuries have been reported in connection with the fire.

Police have now declared the property a crime scene as investigators work to establish how the fire started and whether it was deliberately lit. The investigation remains ongoing.

The incident caused concern among nearby residents as flames spread through the property. One neighbour described the situation as frightening and said her family came outside after the fire began because of concerns that the flames could spread to nearby homes.

Emergency crews worked to contain the blaze and prevent further damage to surrounding properties. The fire was eventually brought under control, allowing investigators to begin examining the damaged home.

Police are appealing to members of the public who may have been in the Woodridge area between 9pm and 9:30pm on Monday night. Investigators are particularly interested in obtaining dashcam footage, CCTV recordings or other information that could help establish what happened before the fire.

Residents with security cameras in the area may have captured vehicles or people moving around the property around the time the fire began. Police are asking anyone with potentially relevant footage to come forward.

The investigation is being treated as suspicious, meaning authorities are examining circumstances that may indicate the fire was deliberately started. Police have not publicly announced any arrests in relation to the incident.

The extensive damage to the Woodridge home means the property will require further assessment, while investigators continue gathering evidence from the scene.

The incident highlights the risks posed when residential fires occur in densely populated areas, where flames can potentially threaten neighbouring homes. In this case, the occupants were able to escape safely and emergency crews prevented the fire from causing further reported injuries.

Police continue to seek information from the public as the investigation progresses.

Anyone who was in the area during the relevant period and has dashcam footage or CCTV that may assist investigators is being urged to contact Queensland Police.