MBIE is adamant that it is investigating the tenancies of families who were living in 61 Molesworth St, after sparking confusion with mixed messages.
The Wellington office block is now condemned after sustaining major damage in the Kaikoura quakes.
There's allegations families were living across four floors of the building, which the building was not designed or zoned for.
Yesterday, Tenancy Compliance and Investigation Manager Paul Coggan released a statement, announcing an investigation into the tenancies.
"Renting out unconsented buildings, or buildings not consented for residential purposes ... raises serious health and safety concerns and is a breach of landlord responsibilities."