The Green Deal has not been closed. The Government ended public investment in the scheme in July 2015, but it remains open for applications and any private finance providers wishing to enter the market.
As with any building refurbishment, regardless of whether it is completed under the Green Deal, it is the responsibility of anyone carrying out building work to ensure compliance with the 2010 Building Regulations. Approved Document B (2006 edition incorporating 2010 and 2013 amendments) on fire safety covers, among other matters, fire spread. Local Authorities are responsible for enforcement.