HIPCEA

Existing Dwelling Energy Performance Certificate (EPCs) - From £50.00
A site survey is required. Whilst on site, the Domestic Energy Assessor (DEA) will need to access all parts of the property, externally and internally, drawing floor plans, making notes on various details of the property (construction, heating system, type of windows/doors, loft insulation etc..) and taking photographs. The industry is highly regulated and Domestic Energy Assessors (DEA) are regularly audited. This prevents erroneous EPCs from being lodged and ensures that the EPCs produced are accurate. A survey can take between 30 minutes to 90 minutes depending on the size and complexity of the dwelling being surveyed.

SAP Calculations & EPCs - From £135.00
In order to produce accurate SAP Calculations that in turn go towards producing the Energy Performance Certificate (EPC),
the follow information/details are required:-

Scaled Drawings; Floor Plans, Section Plans, Elevation Plans and a Site Plan
Construction specification - Outlining the materials to be used in the floors, walls, roofs etc..
Any heating and hot water systems installed
Whether the corridors are to be heated (Flats only)
Internal wall construction - This can be timber stud, metal stud or masonry
Construction of doors and windows (UPVc/timber/aluminium..double glazed etc..)
To minimise heat loss through weak points in the building envelope (Floors, walls, roof, windows, doors etc..), developers should be following a methodology to ensure envelope of the development is as air tights as possible. Accredited Construction Detail document - See https://www.planningportal.co.uk/applications/building-control-applications/building-control/approve...

SAP Calculations are required for New Builds / Conversions / Extensions.
An EPC is required at the end of the build for New Builds but may not necessary be required for Conversions or Extensions.
Check with Building Control, who will provide advice.