New Buildings · County Londonderry

Kitchen extensions with bedrooms above in New Buildings

Our kitchen extensions with bedrooms above service in New Buildings covers everything: measured survey, design, planning or permitted development checks, structural design, building control and the build itself.

What we'd confirm first for a project in New Buildings.

Postcode districts
BT48
County / area
County Londonderry, Northern Ireland
Price region
Northern Ireland
Guide price
£49,500–£66,500 (£1,760–£2,380 per m²), kitchen units and worktops priced separately
Approval route
It may be permitted development if it goes no more than 3 m beyond the original rear wall and stays 7 m from the rear boundary.
Nearest towns
Derry (3.2 miles), Culmore (7.1 miles), Eglinton (7.9 miles)
Distance to Derry
about 3.1 miles
First visit
Free, no obligation

About a kitchen extension with bedrooms above

This service suits you if your kitchen is too small and you also need another bedroom. Building both floors at once costs less than a single-storey kitchen extension now and a first floor later. You get a layout that works for cooking, eating and the garden, a bedroom plan that works upstairs, the approvals your nation needs and the build, carried out by vetted teams working under S&K. Kitchen units are priced separately.

We cover postcode district BT48 in and around New Buildings, along with neighbouring Derry, Culmore and Eglinton.

What it costs in New Buildings

A guide price for New Buildings: around £49,500–£66,500 (kitchen units and worktops priced separately) for a 4 m × 3.5 m footprint on two floors (28 m² of new floor space). That works out at £1,760–£2,380 per m² of new floor space, including VAT at 20%. Professional fees for drawings and the structural engineer are listed separately on our prices page.

SpecPer m²A 4 m × 3.5 m footprint on two floors (28 m² of new floor space)
Essential£1,620–£2,190 per m²£45,500–£61,000
Standard£1,760–£2,380 per m²£49,500–£66,500
Premium£2,110–£2,850 per m²£59,000–£80,000

Planning and building control in New Buildings

In Northern Ireland, a kitchen extension with bedrooms above can be permitted development if it goes no more than 3 m beyond the original rear wall and stays 7 m from the rear boundary, with height, materials and roof pitch conditions. Otherwise a planning application costs £347 per dwelling, and building control approval from the council is needed.

Approval in Northern Ireland: Planning application for works to a house: £347. Councils aim to decide local applications within an average of 15 weeks; many take longer.

Building control: Building control approval from the local council under the Building Regulations (Northern Ireland), using the Technical Booklets.

Design points for New Buildings homes

Services and drainage

Sinks, dishwashers and an upstairs bathroom all need waste routes to the drains, often near where the extension goes. We check the drains early and plan soil stacks, gas and electrical supplies so the kitchen layout is not limited later.

Steel beams and the open-plan opening

Removing the old rear wall to make one large room means a steel beam, sometimes several, to carry the first floor and roof. The engineer sizes the steel and its supports, and we decide early whether you want a flush ceiling with the beam hidden or a downstand, as this affects ceiling heights.

How we'd run your project

  1. Free site visit

    We visit your home in New Buildings, look at the structure, access and boundaries, and talk through what you want the new rooms to do.

  2. Choose the approval route

    Some designs fit permitted development, most need a householder application. We decide which applies in Northern Ireland before drawing in detail.

  3. Engineer it

    Foundations sized for two floors, steels for any openings, and building control approval, all before anyone starts on site.

  4. Build and hand over

    We manage the build from groundworks to decoration-ready finish and hand over with the completion paperwork.

Questions about kitchen extensions with bedrooms above in New Buildings

How much does a kitchen extension with bedrooms above cost in New Buildings?

Our guide for Northern Ireland, which covers New Buildings, is £1,760–£2,380 per m² including VAT. A typical project with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) comes to about £49,500–£66,500 (kitchen units and worktops priced separately). 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 kitchen extension with bedrooms above in New Buildings?

New Buildings is in Northern Ireland. It may be permitted development if it goes no more than 3 m beyond the original rear wall and stays 7 m from the rear boundary.

Who handles building control for a project in New Buildings?

We handle it as part of the project. What's needed in Northern Ireland: building control approval from the local council under the Building Regulations (Northern Ireland), using the Technical Booklets. We prepare the drawings and the engineer's calculations, book the inspections and pass you the completion paperwork at the end.

Can I keep using my kitchen during the build?

For part of it. The new structure can be built while your existing kitchen stays in use, but when the rear wall is opened and the new kitchen is fitted there will be several weeks without one. We plan when this happens and help you set up a temporary kitchen elsewhere in the house.

Is it cheaper to build a kitchen extension and bedrooms at the same time?

Yes, in most cases. Building both floors at once means one set of foundations, one roof, one scaffold and one set of approvals. Adding a first floor later means removing the original roof, possibly strengthening the foundations and disrupting the kitchen again. If you think you will need the bedroom, build it now.

Nearby

The same service in neighbouring towns:

Other extensions in New Buildings

All two-storey extension services in New Buildings · Kitchen extensions with bedrooms above across County Londonderry

Ready to talk it through? Call us or send the form and we'll arrange a visit to your home in New Buildings.

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