Covering Bangor, County Down
Our coverage around Bangor, County Down (BT19, BT20) also includes Newtownards, Holywood and Carrickfergus.
Homes in County Down
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 goes into an upward extension?
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.
- Structural survey of walls and foundations
- Roof removal and temporary weather protection
- New first-floor structure, walls and roof
How much should I budget for an upward extension?
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 |
How is an upward extension approved in Bangor, County Down?
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 Bangor, County Down homeowners check first?
- Some bungalow foundations need strengthening before a storey can be added.
- Neighbours’ light and privacy are the main planning tests.
How does the project run?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- 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.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Bungalow and upward extensions: common questions
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.
How much does it cost to add a storey?
Around £2,200 to £3,800 per square metre of new floor including VAT, or £45,000 to £85,000 for a chalet conversion with dormers.
How do I get a price for bungalow and upward extensions in Bangor, County Down?
Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.
Bungalow and upward extensions in nearby towns
- Bungalow and upward extensions in Newtownards
- Bungalow and upward extensions in Holywood
- Bungalow and upward extensions in Carrickfergus
- Bungalow and upward extensions in Comber
Learn more about bungalow and upward extensions, or see every project we cover in Bangor.

