The survey of 350 UK commercial property owners, carried out by Censuswide, found 42% reported a significant increase in vacancy and only 3% a decrease.
Awaab's Law has applied to social housing in England since October 2025, with the Renters' Rights Act 2025 allowing its extension to private tenancies.
The changes affect seven lending areas, including limited company, portfolio and expat portfolio buy-to-let, as well as retirement and first-time buyer products.
Rushbrook's analysis of Government data puts 39% of all leasehold dwellings in the private rented sector, as ministers plan an independent regulator for property agents.