Property search agent Stacks has called for a ‘bedroom tax’ for the private sector.

Any home owner with more than three bedrooms would have to pay a tax on those which were unoccupied.

Stacks said that the tax should be payable where bedrooms in larger homes are not used by a family member or paying tenant.

Stacks is also calling for the introduction of a vacant property tax, payable by all owners whose property is empty for over six months of the year.

The business would also like to see Capital Gains Tax scrapped for private landlords who sell to first-time buyers; and wants to see qualifications and licensing introduced for all property agents.

Stacks is headed by James Greenwood, who has previously stood for Parliament as a Green candidate.

He is not a candidate in next month’s election – although this has not stood in the way of releasing a ‘manifesto’.

Neither the Tories nor Labour have yet published their manifestos – preferring instead to drip-feed policy announcements as they go along.