Murat, a 33-year-old Brit who has been twice questioned by police and maintains his innocence, shares the house in Praia da Luz with his mum. He is not currently at the house.
The residence is near the holiday apartment from which Madeleine vanished and had previously been searched by officers, with a number of items removed.
Murat - who has not been arrested - insists he was at home on May 3, the night Madeleine disappeared, and his mother backs his alibi. He is considered an "arguido" - the Portuguese police term for a suspect.