These sort of extensions are called ‘Permitted Developments’ (‘PD’) but they do not apply in Conservation areas, commercial properties or houses that have been converted to flats.
Examples are
• Single storey rear extensions not exceeding 3m (4m for detached houses)
• Single storey side extensions and some two storey rear extensions
• Most loft conversions provided additional volume does not exceed 40 Cu.m (50 Cu.m for semi and detached houses)
• Outbuildings with flat roofs, height not exceeding 2.5m
The Planning Enforcement teams are becoming increasingly pro-active in serving notices on unauthorised extensions; so we suggest you seek advice from a professional before you embark on a PD project.
Building Control are the Inspectors that check your plans for building regulation compliance and also monitor your work during construction.
The Building Control Inspectors keep an eye on your builder to make sure that your building is built safely and is energy efficient.
Development Control aka Planners are particular about the external appearance of your extension and the impact on adjoining properties/neighbours and the environment.
Building Control Inspectors make sure that your extension is structurally safe, conserves energy, is damp proof and hygienic.
They work according to Building Regulations in order to protect you from ‘Cow-boy’ builders.
Some sheds/outbuildings can be legally constructed under ‘PD’ rights.
However you will have to seek planning permission if you are in a Conservation area, the garage was built as part of an extension to the original house, or the garage is part of a flat or new estate where ‘PD’ rights have been revoked.
You can also extend your approval without having to resubmit the plans, but there is a charge which equals to about the same amount for a fresh planning application.
A bit like the NHS vs BUPA where AI’s are the BUPA of the Building Control industry.
AI’s are generally more expensive but they can be more efficient, pro-active and supportive.
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