Davood Ghadami's estate has been destroyed by fire.
The former 'EastEnders' actor, who owns property business Blackraven Developments with his family, has visited the scene after Netteswell Hall in Harlow, Essex, was devastated by two blazes, and police are "treating both as arson".
Ben Turner, from Essex Country Fire and Rescue Service, told The Sun newspaper: "Crews worked really hard in challenging conditions to get the fire under control.
"The roof collapsed, which made extinguishing the fire even more difficult.
"Crews worked tirelessly and I'd like to thank crews from Hertfordshire Fire and Rescue Service for their assistance."
Two blazes occurred at the estate of the former 'Holby City' star one week apart, and police are calling for anyone with any information to come forward.
Essex police said in a statement: "We are investigating two fires at a property in Park Lane, Harlow that occurred on 1 October (crime reference 42/253181/22) and 8 October (crime reference 42/254106/22).
"We are treating both incidents as arson and enquiries continue.
"If you have any information, CCTV, dash cam or other footage in relation to this incident, then please get in contact with us."
Davood bowed out of 'EastEnders' in April 2021 when his character Kush Kazemi - who he had played since 2014 - was killed off after he was pushed in front of a London Underground train by serial killer Gray Atkins (Toby-Alexander Smith).
The star later admitted there was "zero acting required" in some of his exit scenes.
He wrote on Instagram: "Ive had a blast. I will miss so many things about working @bbceastenders but its the people that made it. Tell you the truth there were scenes tonight where there was zero acting required. Its hard to say goodbye... (sic)"