Two-storey side extensions in Prudhoe
We cover Prudhoe and the rest of Northumberland for two-storey side extensions. Start with a free site visit and a plain-English view of what your house and plot can take.
Prudhoe: the key facts for this kind of project.
- Postcode districts
- NE41, NE42, NE43 and NE44
- County / area
- Northumberland, England
- Price region
- North East England
- Guide price
- £77,500–£104,000 (£1,840–£2,480 per m²)
- Approval route
- Planning permission is needed: in England, permitted development only allows single-storey extensions to the side.
- Nearest towns
- Newburn (4.6 miles), Blaydon-on-Tyne (5.5 miles), Darras Hall (6.2 miles)
- Distance to Blyth
- about 17.8 miles
- First visit
- Free, no obligation
About a two-storey side extension
A two-storey side extension is a new two-floor addition built into the space beside your house, often over a driveway or side passage. It typically adds one or two bedrooms upstairs and a utility, study or larger kitchen below, without giving up rear garden.
We cover postcode districts NE41, NE42, NE43 and NE44 in and around Prudhoe, along with neighbouring Newburn, Blaydon-on-Tyne and Darras Hall.
What it costs in Prudhoe
Guide prices for two-storey side extensions in North East England are around £1,840–£2,480 per m² of new floor space, including VAT. For a typical project with a 3 m × 7 m footprint on two floors (42 m² of new floor space), that's roughly £77,500–£104,000. Steelwork for wide openings is the item most likely to move the figure; we'll know once the engineer has designed it.
| Spec | Per m² | A 3 m × 7 m footprint on two floors (42 m² of new floor space) |
|---|---|---|
| Essential | £1,700–£2,280 per m² | £71,500–£95,500 |
| Standard | £1,840–£2,480 per m² | £77,500–£104,000 |
| Premium | £2,210–£2,970 per m² | £93,000–£124,500 |
Planning and building regulations in Prudhoe
In England, a two-storey side extension always needs householder planning permission, because permitted development only allows single-storey extensions beyond a side wall. The fee is £548 (or £575 for applications made from 8 December 2026), and councils should decide within 8 weeks of validation. Expect them to look at set-back, roof height, gaps to the boundary and the effect on neighbours.
Approval in England: Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
Building regulations: Building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end.
Design points for Prudhoe homes
Access and services
Side extensions often cover the only route to the back garden, a gas meter, soil pipes or a drain run. We plan bin and bike access, move meters and pipes where needed and check drains early, because these items affect both cost and layout.
Avoiding a terracing effect
Where semi-detached houses sit close together, side extensions on neighbouring houses can join up and turn a row of pairs into a terrace. Many councils ask for a gap to the boundary at first floor to stop this, so we check local guidance before fixing the width.
How we'd run your project
Measure and listen
A visit to Prudhoe to understand how you live in the house now and what the extra rooms need to do, plus a first look at the structure.
Choose the approval route
Some designs fit permitted development, most need a householder application. We decide which applies in England before drawing in detail.
Engineer it
Foundations sized for two floors, steels for any openings, and building control approval, all before anyone starts on site.
Build
Foundations, walls, floor, roof, windows, then first and second fix. We break through into the house as late as we can.
Questions about two-storey side extensions in Prudhoe
Who handles building regulations for a project in Prudhoe?
We handle it as part of the project. What's needed in England: building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end. We prepare the drawings and the engineer's calculations, book the inspections and pass you the completion paperwork at the end.
Which postcodes do you cover around Prudhoe?
We cover Prudhoe (NE41, NE42, NE43 and NE44) and nearby places including Newburn, Blaydon-on-Tyne and Darras Hall, plus the rest of Northumberland. The first site visit is free.
How much does a two-storey side extension cost in Prudhoe?
Our guide for North East England, which covers Prudhoe, is £1,840–£2,480 per m² including VAT. A typical project with a 3 m × 7 m footprint on two floors (42 m² of new floor space) comes to about £77,500–£104,000. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.
Do I need planning permission for a two-storey side extension in Prudhoe?
Prudhoe is in England, so England planning rules apply. Planning permission is needed: in England, permitted development only allows single-storey extensions to the side. If in doubt, a lawful development certificate or a planning application gives you certainty before you build.
Can I build a two-storey side extension over my driveway?
Yes, if the drive is wide enough for a useful room and the council accepts the design. You may lose off-road parking, which some councils weigh up, and the foundations need to suit the ground below. We check parking, drains and meter positions at the free site visit before any drawings are prepared.
Nearby
Other towns near Prudhoe:
Other extensions in Prudhoe
- Rear
- Wraparound
- Part two-storey
- Over a garage
- First floor
- Semi-detached
- Detached
- Kitchen and bedrooms
- Bedroom and en-suite
All two-storey extension services in Prudhoe · Two-storey side extensions across Northumberland
Send us your postcode and a few details. We'll get back to you to arrange a visit and talk through your options.