Planning Permission And Building Regulations Do Different Jobs

Building work is commonly described as needing permission, as though one approval covered everything. Two distinct systems are usually at work, asking different questions and producing different documents.

The two questions being asked

Planning control is concerned with whether a proposal is acceptable in its setting: its size, its appearance, its effect on neighbours and on the character of the surrounding area.

Construction standards are concerned with the building itself: whether structure, fire safety, drainage, insulation and ventilation meet the technical requirements applying when the work was carried out.

The two overlap only incidentally. A scheme can be entirely acceptable in planning terms and still fail technically, and a technically flawless extension can be refused for reasons of appearance or overlooking.

Who administers each system

Planning decisions are made by a public authority responsible for the area, applying a published set of policies. The process is generally open, with the proposal visible and neighbours able to comment.

Technical approval is handled by inspection, either by a public body or by an approved private inspector, depending on the jurisdiction. It is a compliance exercise rather than a public consultation.

The paper each one leaves

A planning approval produces a decision document, usually with conditions attached. Those conditions can require further details to be submitted later, or restrict how the finished building is used.

Technical compliance produces evidence of inspection at stages of the work and, at the end, a certificate or equivalent confirmation. Certain installations may also be certified separately by a registered installer.

These documents are what a buyer's lawyer asks for, so the paperwork matters as much as the work. A well-built extension with no records is harder to sell than an ordinary one with complete files.

Why some work needs neither

Most systems exempt smaller or lower-risk work from one or both regimes. Minor alterations may fall outside planning control entirely, and small repairs may not require any inspection.

Exactly what is exempt varies by jurisdiction and is revised regularly, so an exemption that applied to a neighbour's project years ago may not apply to an identical project now.

How the distinction affects a transaction

Standard enquiries in a sale ask about both systems separately, and answers are expected to be supported by documents rather than recollection. Vague answers generate further questions and delay.

Where records are incomplete, the parties look at what evidence exists, how long ago the work was done, and what the relevant authority's current position on older work is.

Those assessments depend on local rules and on the age of the work, so homeowners planning building work or selling afterwards should confirm requirements with the local authority and their conveyancer.