How long does planning permission take in Northumberland?
A practical guide to how long planning permission usually takes in Northumberland, what can cause delays and simple steps…
An extension is usually the biggest change people make to a house, and it is worth getting the decisions right before anything is dug. We build extensions across Northumberland, from modest kitchen extensions on post-war semis to two-storey additions on stone-built farmhouses.
Types of extension we build
- Single-storey rear extensions – the most common choice, often for a larger kitchen and family space opening onto the garden.
- Side-return and wraparound extensions – using a narrow side passage, or wrapping round the back and side, to change the layout of the ground floor.
- Two-storey extensions – adding bedrooms or a bathroom above new ground-floor space, usually the best value per square metre where planning allows.
- Garden-room style and glazed extensions – lighter structures with roof lanterns or large glazed areas.
Matching the house you already have
In Northumberland the existing house matters a lot. Many homes are built from local sandstone with slate roofs; others are brick or rendered. On older stone properties we look at how the new walls will meet the old, whether lime mortar is needed at the junction, how the roof pitches will line up and where water will run. On modern homes the challenges are different – drainage runs under the extension footprint, cavity trays and matching bricks that may no longer be made.
Planning permission and building regulations
Some single-storey rear extensions can be built under permitted development, and there is a prior approval route for larger single-storey ones. Others need full planning permission – particularly in conservation areas, on listed buildings, inside the Northumberland National Park, or where the house has already been extended. Almost every extension needs building regulations approval for foundations, structure, insulation, ventilation, drainage and fire safety. We will help you understand which route is likely to apply; the council makes the decision.
How the build usually runs
- Setting out, excavation and foundations, with building control inspection.
- Drainage alterations and the ground-floor slab.
- Walls up to roof level, then the roof structure and coverings.
- Windows and doors, then the opening into the existing house – usually the messiest stage, which we plan carefully.
- Services, plastering and finishes, then a final inspection and completion certificate.
Living at home during the work
Most families stay at home while an extension is built. Most of the work happens outside until the final opening-up stage. We will talk you through when the kitchen might be out of action, how we will seal off dust, and how we will keep access safe.
