A Metropolitan police spokesman said the man had been arrested and bailed in May. He was then re-bailed to return to a central London police station later this month.
Twenty-six-year-old Elouise Littlewood died two months after moving into her housing association flat, on the Bedfont Lakes development in Hounslow. Bedfont Lakes, which was developed and built by Barratt Developments, was signed off to Notting Hill Housing in December 2006.
According to the Trust, Barratt retains responsibility for all the gas systems and appliances, which were designed by one contractor and installed by a subcontractor.
Each flat was issued with landlords’ gas safety certificate but neither Barratt nor Notting Hill would confirm whether the flats were issued with a Declaration of Safety Certificate. DSCs confirm that the installation was undertaken by a Corgi-registered installer and carried out in accordance with gas safety regulations.