A MANSION popular for hosting kids’ parties in a leafy residential area was transformed into a sex club.

Parents were outraged when 150 revellers flocked to Belair House for a “secret”; event.

It came after videos emerged of members of elite orgy club Heaven Circle reportedly romping at the Georgian property.

Dress code for the £200-a-head event at the Grade II-listed home was black tie for men, “black lingerie, fetish attire and cloaks”; for women.

The venue, in Dulwich, , is 200 yards from top public school .

One mum said: “I associate it as a popular place for kids’ parties, not for swingers.

“It feels wrong that you could be hosting a five-year-old’s party with kids’ entertainment a few days after a load of swingers have been having a wholly different kind of entertainment.”;

Another added: “I hope it got a good clean.”;

She said: “I can’t believe that the same venue can be used for sex parties and family events.”;

Privately-owned Belair House said: “We take our position in the community seriously.

“We’re known for hosting lawful and professional private functions.”;

Belair House in Dulwich.Belair House, popular for hosting kids’ parties in a leafy residential area, was transformed into a sex club