Belfast·SPG004 Residential Extensions and Alterations·Page 54·4.5.4

Two approaches to retrofitting existing properties

Retrofitting can be achieved through a Fabric First approach focusing on upgrading building fabric, or a comprehensive Whole House approach assessing fabric, services and systems with a bespoke retrofitting plan.

Retrofitting the existing property can be achieved via two approaches: i. Fabric First: An initial approach aimed at upgrading the building fabric (e.g. walls, lofts, floors); and ii. Whole House: A more comprehensive assessment-based approach of the fabric, services and systems (e.g. heating, hot water, lighting) of a building and the energy used, alongside consideration of the specific circumstances of the property including the ways in which it is used by its occupants. The approach is supported by a bespoke plan detailing the retrofitting work that can be undertaken, the associated costs, estimated energy savings and carbon reductions.

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