Two-storey wraparound extensions in Newcastle upon Tyne

The basics for Newcastle upon Tyne at a glance.

Postcode districts: NE1, NE2, NE4 and NE99
County / area: Tyne and Wear, England
Price region: North East England
Guide price: £108,500–£148,500 (£1,940–£2,660 per m²)
Approval route: Planning permission is needed: the side part takes it outside permitted development in England.
Nearest towns: Gateshead (0.9 miles), Gosforth (1.8 miles), Felling (2.2 miles)
First visit: Free, no obligation

About a two-storey wraparound extension

A two-storey wraparound extension suits a house with space both beside it and behind it, where you want to transform the layout rather than add a single room. You get one design for the whole L-shape, the planning application, structural design for the corner and the openings into the house, building regulations approval and the build, managed by us and carried out by vetted teams working under S&K.

Around Newcastle upon Tyne we also work in Gateshead, Gosforth and Felling, and across the rest of Tyne and Wear. Postcode districts in and near Newcastle upon Tyne: NE1, NE2, NE4 and NE99.

What it costs in Newcastle upon Tyne

A guide price for Newcastle upon Tyne: around £108,500–£148,500 for an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space). That works out at £1,940–£2,660 per m² of new floor space, including VAT at 20%. 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	An L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space)
Essential	£1,780–£2,440 per m²	£99,500–£137,000
Standard	£1,940–£2,660 per m²	£108,500–£148,500
Premium	£2,320–£3,190 per m²	£130,000–£178,500

Planning and building regulations in Newcastle upon Tyne

In England, a two-storey wraparound extension needs householder planning permission, because any extension beyond a side wall must be single storey to be permitted development. The application costs £548 (or £575 for applications made from 8 December 2026). Councils weigh the side part against the street scene and the rear part against neighbours' light and outlook, and should decide within 8 weeks of validation.

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 Newcastle upon Tyne homes

Daylight to the middle

A deep L-shaped plan can leave the middle of the ground floor dark, because the old rear rooms are now enclosed. We use wide rear openings, a well-placed stair and, where part of the extension is single storey, roof lights, while keeping total glazing within the Part L allowance.

The corner post

At the outside corner of the L, there is no existing wall to carry the floor above. Opening the ground floor fully usually means a steel frame or a corner post, and the engineer's design sets how slim it can be. We decide early whether you want a clear corner or a visible post.

How we'd run your project

Start at your house
We come to your home in Newcastle upon Tyne, measure up, check the ground floor walls and roof structure, and note anything near the boundaries.
Design and approvals
We draw the extension and check it against the rules for England, then apply for planning permission or a certificate of lawfulness, whichever fits.
Price it properly
Once the engineer's calculations are in, we fix the build price in writing, with a clear list of what's included.
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 wraparound extensions in Newcastle upon Tyne

Which postcodes do you cover around Newcastle upon Tyne?

We cover Newcastle upon Tyne (NE1, NE2, NE4 and NE99) and nearby places including Gateshead, Gosforth and Felling, plus the rest of Tyne and Wear. The first site visit is free.

How much does a two-storey wraparound extension cost in Newcastle upon Tyne?

Our guide for North East England, which covers Newcastle upon Tyne, is £1,940–£2,660 per m² including VAT. A typical project with an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space) comes to about £108,500–£148,500. 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 wraparound extension in Newcastle upon Tyne?

Newcastle upon Tyne is in England, so England planning rules apply. Planning permission is needed: the side part takes it outside permitted development in England. If in doubt, a lawful development certificate or a planning application gives you certainty before you build.

Is a wraparound extension better than separate side and rear extensions?

Building both at once usually costs less than two separate projects, because you pay for one set-up, one scaffold, one roof junction and one set of approvals. It also lets the layout be designed as a whole. The trade-off is a larger single outlay and a longer build, often 16 to 24 weeks at this size.

Does a wraparound extension need steel?

Almost always. Opening the corner of the house and the old rear wall to make one open-plan space means steel beams, and often a steel post or frame at the outside corner. The structural engineer sizes these, and the steel is ordered once the design is fixed, which is one reason a wraparound needs careful sequencing.

Nearby

Nearby towns we cover for two-storey wraparound extensions:

Other extensions in Newcastle upon Tyne

All two-storey extension services in Newcastle upon Tyne · Two-storey wraparound extensions across Tyne and Wear

Book a free site visit in Newcastle upon Tyne and we'll tell you what's possible, what approvals you need and what the design stage would cost.