Where do the Teenage Mutant Ninja Turtles go to kick back and chill?

Clavering in Essex, apparently. At least if Weston Homes is to be believed.

Visitors to its St Catherine’s Grange development can discover a space dedicated to the mutated reptiles including a comic book-style manhole cover.

There’s also a ladder down to the cosy sea of mud carpet and walls splashed with painted sewage and brickwork.

A zesty green bean bag is ready for when mutant-rat Splinter calls around, while jade side lamps up the illumination and a steel cage topped off with a turtle bike helmet. Cartoon merchandise, mini figures and Andy Warhol style prints of Donatello, Leonardo, Michelangelo and Raphael complete the look, created by Blocc Interiors to amuse kids.

Weston Homes chairman Bob Weston said: “The houses at St Catherine’s Grange are perfect for families and more than 50% of the visitors to the development have been families enchanted by the Teenage Ninja Mutant Turtle-themed room.

“It has definitely helped play a role in our success at promoting the houses to families with children.”

Weston Homes turtle room, Essex

St Catherine’s Grange boasts 23 two, three and four-bedroom homes off the village’s Stickling Green Road.

Buyers who opt for a two-bed or larger across Weston Homes’ entire portfolio, before the end of May, will be entitled to a free turtle-themed bedroom. One can be whipped up within 48 hours after a design scheme has been agreed.

The firm’s sales and marketing director Jonathan Lewis said: “Each year we create and promote a new themed children’s bedroom to assist with our marketing to families.

“Themed merchandising and co-branding has become increasingly important to housebuilders as it enables us to link into topical movies and TV series that attract big domestic and global audiences.”

Prices start from £374,995. The village is about an hour from Canary Wharf by car.

Go to weston-homes.com for details.