Light vs Heavy Refurbishment

The three tests lenders apply

There is no statutory definition of light or heavy refurbishment: each lender writes its own. But in practice every definition is built from the same three tests.

1. StructureDoes the work alter the building structurally? Removing a chimney breast, structural openings, extensions, loft and basement conversions all fail this test and push the project heavy.
2. PermissionDoes the work need planning permission or a change of use? Anything that does is heavy on almost every panel, including dwelling-to-HMO conversions in Article 4 areas.
3. Cost ratioHow large are the works relative to the property? A common threshold treats works above roughly 50% of current value as heavy even when cosmetically simple, because the project risk is in the scale.

What each classification means for your facility

The grey areas, and how to handle them

Internal reconfiguration

Moving non-loadbearing walls is light almost everywhere. The moment a structural engineer's calculation or a steel is involved, expect the heavy label. If your project has one steel in an otherwise cosmetic schedule, tell us: some lenders will hold the light classification for minor structural elements with building regs sign-off, and the rate difference is worth the conversation.

HMO conversions without structural work

Converting a dwelling to a small HMO with only cosmetic works can be light where no planning is required. In an Article 4 area, or above six occupants where sui generis planning applies, it is heavy regardless of the works. Check the planning position before assuming the label.

Cosmetic works at scale

A full-house refurb costing 60% of the property value may involve nothing structural, yet many lenders classify on the cost ratio alone. Others hold it light. This is a placement question: the classification, and therefore the price, depends on choosing the lender whose definition fits your project.

Why you should never force the label

Understating a schedule of works to win light pricing is a false economy. The valuer and the monitoring process will surface the real scope, and a facility withdrawn mid-project is vastly more expensive than the rate difference you were chasing. The honest route is faster: classify correctly, then compete the right panel hard. That is our job on light and heavy projects alike.