Skip to content

Building Regulations: Floor Insulation

The installation of insulation in your floor must meet the minimum energy efficiency values set out in the Approved Documents.

However, if such an upgrade is not technically or functionally feasible, the element should be upgraded to the best standard which can be achieved within a simple payback of no greater than 15 years.

Renovation of more than 25 per cent of a solid or suspended floor involving the replacement of screed or a timber floor deck would have to meet the standards required by the building regulations Approved Documents.

Find a Trade Professional

Use our partner directories from CIAT, FMB or RTPI to find an chartered architectural technologist, builder or planning consultant to help with your project or development.

Find a professional


Useful links

Make an application Planning consultancy calculator
    1. https://www.planningportal.co.uk/permission/common-projects/external-walls/thermal-resistance

    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing and Communities (DLUHC). All content © 2024 Planning Portal.

    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing and Communities (DLUHC). All content © 2024 Planning Portal.