Ballynahinch · County Down

Kitchen extensions with bedrooms above in Ballynahinch

A kitchen extension with bedrooms above is one of the most space-efficient ways to add bedrooms and living space to a house in Ballynahinch, because the new floors share one set of foundations and one roof.

Before you start in Ballynahinch, here's what applies.

Postcode districts
BT24
County / area
County Down, 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
Carryduff (8 miles), Downpatrick (8.9 miles), Lisburn (10 miles)
Distance to Bangor (County Down)
about 20.1 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.

Around Ballynahinch we also work in Carryduff, Downpatrick and Lisburn, and across the rest of County Down. Postcode district in and near Ballynahinch: BT24.

What it costs in Ballynahinch

In Northern Ireland, which includes Ballynahinch, we'd expect a kitchen extension with bedrooms above to cost 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), or £1,760–£2,380 per m² including VAT. Keep a contingency of around 10% for things nobody can see until the ground is opened up.

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 Ballynahinch

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 Ballynahinch 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.

Bedrooms over a kitchen

Bedrooms above need an escape window or a protected route to the stairs, plus good sound insulation from the kitchen below. We position the stairs, landing and bedroom doors so the new rooms connect naturally to the existing first floor.

How we'd run your project

  1. Free site visit

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

  2. Get it approved

    Once you're happy with the design we submit it to the council for Ballynahinch and deal with any questions from the planning officer.

  3. 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.

  4. Build and sign-off

    Vetted teams working under S&K build the extension, and we arrange the building control completion certificate at the end.

Questions about kitchen extensions with bedrooms above in Ballynahinch

Who handles building control for a project in Ballynahinch?

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.

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

Our guide for Northern Ireland, which covers Ballynahinch, 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 Ballynahinch?

Ballynahinch 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.

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.

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.

Nearby

The same service in neighbouring towns:

Other extensions in Ballynahinch

All two-storey extension services in Ballynahinch · Kitchen extensions with bedrooms above across County Down

The quickest next step is a visit. We'll look at your house in Ballynahinch and give you an honest view of the options.

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