Home extensions in County Tyrone
More space without moving: we plan and build extensions across County Tyrone, with one team for the drawings, the council and the build.
- Towns listed3
- Price regionNorthern Ireland (×0.86)
- Planning rulesNorthern Ireland
- Postcode districts12
Towns we cover in County Tyrone
Towns we cover here include Omagh, Cookstown, Strabane.
What works best for County Tyrone houses?
In Northern Ireland, extension projects follow the NI planning rules and council building control, which we account for from the first survey.
For many houses here, bungalow extensions, side extensions or annexe extensions gives the most useful space for the budget.
County Tyrone extension prices at a glance
Prices on this page use our Northern Ireland factor of ×0.86, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £25,500 – £33,500 |
| Double-storey extensions | 32 m² | £49,500 – £65,000 |
| Wraparound extensions | 25 m² | £49,000 – £62,500 |
| Extensions over a garage | 12 m² | £21,500 – £28,000 |
| Orangery extensions | 16 m² | £38,500 – £48,500 |
| Kitchen extensions | 20 m² | £36,000 – £46,000 |
| Single-storey rear extensions | 20 m² | £35,000 – £45,000 |
Approvals for an extension in County Tyrone
In Northern Ireland the Planning (General Permitted Development) Order 2015 lets some single-storey rear extensions go ahead without planning permission, up to 3 m on a semi-detached or terraced house and 4 m on a detached house, within height and boundary limits. Larger, side and two-storey extensions normally need planning permission from the council, and building control approval is separate.
In a conservation area or area of townscape character the permitted development rights are more limited, listed homes need listed building consent, and if rights have been removed by a condition, any extension needs an application.
In Northern Ireland building control is run by the councils under the Building Regulations (Northern Ireland). We submit full plans or a building notice and book the inspections through to completion.
Choose an extension type
- Extension plans and drawings · from £1,000
- Extensions over a garage · from £20,500
- Single-storey rear extensions · from £18,000
- Glass box extensions · from £25,500
- Planning permission for extensions · from £300
- Flat roof extensions · from £18,000
- Side extensions · from £18,500
- Kitchen extensions · from £23,000
- Side return extensions · from £15,000
- Bungalow extensions · from £22,500
- Wraparound extensions · from £30,500
- Bedroom extensions · from £22,000
- Conservatory replacement extensions · from £17,000
- Utility and boot room extensions · from £12,000
- Home office extensions · from £13,500
- Building regulations for extensions · from £750
- Timber frame extensions · from £18,000
- Double-storey extensions · from £32,500
- Porch extensions · from £3,400
- Pitched roof extensions · from £19,000
- Orangery extensions · from £25,500
- Annexe extensions · from £47,000
Neighbouring areas
Questions about extensions in County Tyrone
How much does an extension cost in County Tyrone?
With our Northern Ireland factor (×0.86), a standard-spec 20 m² single-storey extension is a guide £35,000 to £45,000 including VAT. Prices for every type are linked on this page.
How long does an extension take in County Tyrone?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Will my neighbours need to be told?
If you apply for planning permission the council notifies neighbours, and we agree access with them in writing for work near a shared boundary.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for County Tyrone, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in County Tyrone
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.