Rogue hosts are the target of new measures being considered by both the government and Labour.
The oversight says landlords in England who want to rent a property to five or numerous people, from at least two different families, should be licensed.
Out of sight the plan, the maximum number of people who can occupy a room would be cited in the property’s licence.
Meanwhile, Labour leader Jeremy Corbyn speaks his party wants tenants to have more powers to avoid dislodgement.
There are about 4.3 million households in the private rented sector in England. Hither 500,000 are houses in multiple occupation.
The Department for Communities and Local Administration said the changes, subject to Parliamentary approval, would make duplexes and one and two-storey properties subject to licensing.
National mandatory licensing currently exclusively applies if properties are three or more storeys.
It estimated that regarding 160,000 homes will be affected by the new proposals.
‘Rogue landlord crackdown’
The regime has also brought forward minimum bedroom sizes in a bid to deal with overcrowding and amateurish accommodation.
It is already waiting for approval from Parliament for regulations, which summary offences including burglary, blackmail, stalking, fraud and fire safe keeping offences that will lead to a landlord being banned from release out property.
Those who are banned will be listed on a database from April.
Lodgings minister Alok Sharma said he was seeking to target «unscrupulous» freeholders who profit from offering «overcrowded, squalid and sometimes dangerous habitations».
He said: «Through a raft of new powers we are giving councils the further instrumentalities they need to crack down on these rogue landlords and backlash them out of the business for good.»
Elsewhere, Mr Corbyn told the Independent that he would annihilate so-called «no fault» evictions in which people are asked to leave without persuade.
«I think it’s a moral litmus test for the country: do we just put up with so numberless rough sleepers or do we do something about it,» he said.
Under Labour there see fit be an emphasis on longer tenancies are part of a «more regulated» private hired system, he said.
«I am very determined to bring some order and lasting quality to their lives by longer tenancies and eviction that can only be there for favourable reason rather than just what can be retaliatory eviction,» he required.