Bungalow and upward extensions in County Londonderry

Covering County Londonderry

We cover County Londonderry, including Derry, Coleraine, Limavady and Magherafelt.

Homes in County Londonderry

Across Northern Ireland you find city terraces, suburban semis and rural bungalows and farmhouses, so the right approach depends on the plot and the planning history.

What does an upward extension involve?

An upward extension adds a new storey on top of an existing house, most often turning a bungalow into a two-storey or chalet-style home. It can double the floor area without using any of the garden.

Planning and building control applications to the council
Structural survey of walls and foundations
Staircase and changes to the ground floor layout

How much does an upward extension cost in County Londonderry?

What bungalow and upward extensions typically cost. These are guide ranges; the written quote for your house replaces them.

Bungalow and upward extensions	Guide price incl. VAT
Chalet conversion with dormers (total)	£45,000 to £85,000
New first floor, standard specification	£2,200 to £2,800 per m²
New first floor, good specification	£2,800 to £3,300 per m²
New first floor, high specification	£3,300 to £3,800 per m²

Do you need permission for an upward extension in County Londonderry?

Projects in Northern Ireland need planning clearance from one of the eleven councils and building control approval, also from the council. The Party Wall etc. Act does not extend to Northern Ireland, so work near neighbours is agreed directly and documented carefully.

Adding a storey in Northern Ireland needs planning permission and building control approval.

What should County Londonderry homeowners check first?

The staircase takes space from the ground floor plan.
Neighbours’ light and privacy are the main planning tests.

How does the project run?

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Your questions answered

Can I add a first floor to my bungalow?

Often yes, if the walls and foundations can carry the load and planning allows. We check the structure first.

Do we need to move out?

Often for part of the job, while the roof is off and the new floor is formed. We plan this with you.

Who deals with the council for a project in County Londonderry?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Bungalow and upward extensions near County Londonderry

Learn more about bungalow and upward extensions, or see every project we cover in County Londonderry.