House extensions in Strabane
Looking to extend your home in Strabane? Start here: extension types, guide prices for Strabane, the planning rules that apply and how a project runs.
- Postcode districtsBT82
- Price regionNorthern Ireland (×0.86)
- Planning rulesNorthern Ireland
- Site visitFree, no obligation

Guide prices for Strabane
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) |
|---|---|---|
| Side return extensions | 11 m² | £22,500 – £28,500 |
| Double-storey extensions | 32 m² | £49,500 – £65,000 |
| Orangery extensions | 16 m² | £38,500 – £48,500 |
| Single-storey rear extensions | 20 m² | £35,000 – £45,000 |
| Wraparound extensions | 25 m² | £49,000 – £62,500 |
| Kitchen extensions | 20 m² | £36,000 – £46,000 |
| Conservatory replacement extensions | 14 m² | £25,500 – £33,500 |
Approvals for an extension in Strabane
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.
Applications are decided by your council, which handles local planning in Northern Ireland.
Areas we cover around Strabane
We cover Strabane and the postcode districts BT82. The same team covers Omagh (16 miles), Cookstown (30 miles), all within easy reach. Just over the County Londonderry border, Derry/Londonderry is about 13 miles away.
Choosing the right extension in Strabane
Northern Ireland's housing ranges from city terraces to large numbers of detached houses and bungalows on rural plots, many in render, where single-storey extensions fit easily.
Depending on the plot, bungalow extensions and side extensions are often the strongest options, with single-storey rear extensions worth considering where there is room.
Every extension type in Strabane
- Bungalow extensions · from £22,500
- Orangery extensions · from £25,500
- Extension plans and drawings · from £1,000
- Extensions over a garage · from £20,500
- Side return extensions · from £15,000
- Flat roof extensions · from £18,000
- Timber frame extensions · from £18,000
- Bedroom extensions · from £22,000
- Annexe extensions · from £47,000
- Porch extensions · from £3,400
- Building regulations for extensions · from £750
- Home office extensions · from £13,500
- Wraparound extensions · from £30,500
- Side extensions · from £18,500
- Planning permission for extensions · from £300
- Pitched roof extensions · from £19,000
- Conservatory replacement extensions · from £17,000
- Kitchen extensions · from £23,000
- Single-storey rear extensions · from £18,000
- Glass box extensions · from £25,500
- Utility and boot room extensions · from £12,000
- Double-storey extensions · from £32,500
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Strabane
How much does an extension cost in Strabane?
Using our Northern Ireland factor (×0.86), a standard-spec single-storey extension of 20 m² is a guide £35,000 to £45,000 including VAT, and a 32 m² two-storey extension £49,500 to £65,000. Your written price follows the survey.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Strabane, and the guide-price tool gives a range for your own size and finish in about a minute.
How long does an extension take in Strabane?
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.
Do you cover all of Strabane?
Yes, including the surrounding parts of County Tyrone. Site visits are free and there is no obligation.
Book a free site visit in Strabane
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.