An investigation is underway  by Croydon Council in to the circumstances of how a teenage boy arrested in connection with terror offences came to live in an apparent unsupervised house of multiple occupancy.

Officers began searching a house in Thornton Heath  in the early hours of  Thursday after a 17-year-old boy was detained under  section 41 of the Terrorism Act in  connection with the Parsons Green terror attack.

However, the next day (Friday) the teenager was released without charge with police saying no further action would be taken against him.

The three storey house 13 St Paul’s Road where he was living was searched by forensic experts. The property  was purchased by 35BR Limited  in 2013 for £650,000, according to the latest Land Registry.

The house is on Croydon Council’s Houses in Multiple Occupation register and a license was granted to 35BR Ltd  in October 2013. The terms of the license allow for a maximum of 13 people to stay in the six bedroom property.

Property tycoon Gillian fielding, 60, who is listed as a current director of 35BR, appeared on Channel 4’s Secret Millionaire, and is also shown as owning Fielding Financial which shares property investing and wealth creation tips.

She is described as self-made millionaire with a no-nonsense, positive approach to finance and a personal mission to educate the nation in managing and improving their own financial position. She is best known for her appearance on Channel 4s The Secret Millionaire in 2007 when she gave away nearly £250,000 to good causes.

The Chronicle has contacted Ms Fielding for a comment.

The council has confirmed that an “investigation is already underway.”

According to documents on Croydon council’s website, the property owners were ordered to remove litter from the property under environmental regulations in 2014.

A council spokesman told The Guardian newspaper that the house was being rented by Lambeth council.

The house is situated on the corner of Norfolk Road and St Paul’s Road opposite St Paul’s Church. Neighbours said they believed the property was a half way house and one said there has been trouble at that house before. Others said it had been used to house asylum seekers and immigration applicants.

Residents have reported they regularly see small groups of youths with mopeds loitering on that corner.

Loud bangs were heard as up to 20 officers stormed the end terrace house and arrested the teenager during the raid just after midnight.

The Met Police has said  forensics experts are scouring a three-storey house which could take several days.

It is the sixth arrest linked to the investigation into a bomb which partially exploded on a London Underground train at Parsons Green station on Friday (September 15), injuring 30 people.

A significant amount of activity has taken place since the attack on Friday.

First picture: Shows police lining up in nearby  Parchmore Road.

Second picture: House raided

Third picture: Overview of the street location