McBains Cooper has warned that 20 per cent of properties may be excluded from the market by 2015.
Current laws state properties with an F or G Energy Performance Certificate rating cannot be let out after 2018.
The property and construction consultancy says it has “reason to believe” this date will be brought forward, given the government’s record of fast-tracking elements of new legislation.
McBains Cooper’s Anthony Coumidis said: “It might be considered an asset, but it may actually be a liability - and sooner than expected.”
While existing leases can be renewed, owners may not be able to sign new tenants, he said.
- Approximately one in five buildings currently fall into the F- or G-rated EPC bracket
- Some properties may require planning permission to upgrade, causing further problems in meeting the deadline if brought forward
- The Green Deal has the potential to address this, but owners and tenants may be uncomfortable with it, says McBains Cooper
- F- or G- rated properties cannot legally be let out after 2018