Reductions in energy use
Reductions in energy costs and/or alleviation of fuel poverty
Comparison of bills before and after
Reductions in emissions associated with energy use
Reduction in CO2 emissions
Improvement in internal comfort
Elimination of condensation, damp and mould
Reducing the risk of overheating
Improvement in energy rating (e.g. SAP)
Meeting a performance standard (e.g. NZEB or Passive House EnerPHit)
Improving the usefulness or sustainability of the building
Whole house retrofit plan
Protecting the building against decay or deterioration
Improving resistance to water penetration and resilience against flood risk
Protection or enhancement of architectural heritage
Integration of energy efficiency measures with other improvements, e.g.
Whole house retrofit plan
extension, loft conversion or general refurbishment
Any other issues that might be considered relevant