Forms will be to be filled out detailing private matters

Controversial new forms will ask ­citizens to reveal the number of bedrooms in their homes, and the name, sex, age and address of overnight visitors.

Ministers stopped short of including a question on people’s sexuality, fearing it would spark a backlash.

Conservatives have branded the 2011 Census a sex snoopers’ charter.

Shadow Cabinet minister Nick Hurd said: “These bedroom snoopers are ­another sign of how the Labour ­Government has no respect for the ­privacy of law-abiding citizens.”

Residents can be fined £1,000 for supplying false information or failing to ­return the 32-page Census form, which aims to create a comprehensive image of social trends in the UK every 10 years.

The proposals have yet to be approved by Parliament but a draft form is due to be put before MPs in the next few days.