Utility and boot room extensions for homes in County Londonderry
We design and build utility room extensions for houses in County Londonderry, with a written price once the survey and design are done and one point of contact throughout.
- Guide priceFrom £12,000 inc VAT
- PlanningNI permitted development (rear 3–4 m) or planning
- Towns covered4
- Site visitFree, no obligation
Towns in County Londonderry
Who a utility room extension suits
- Houses with a side passage or small rear corner
- Busy family homes
- Kitchens that have run out of space for appliances
Will the council need to approve it?
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.
Building close to a public sewer needs the agreement of NI Water, which we check during design.
Applications are decided by your council, which handles local planning in Northern Ireland.
Working in County Londonderry
Towns we cover in County Londonderry include Derry/Londonderry, Coleraine, Limavady, Magherafelt. 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.
What should I budget for a utility room extension in County Londonderry?
These guide figures apply our Northern Ireland adjustment (×0.86) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in County Londonderry: £1,630 to £3,010 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 2 m × 2.5 m 5 m² | £12,000 – £14,500 | £12,000 – £15,000 | £12,000 – £15,500 |
| 2.5 m × 3.2 m 8 m² | £13,000 – £15,500 | £15,000 – £19,500 | £19,000 – £24,500 |
| 3 m × 3.6 m 11 m² | £17,500 – £21,500 | £21,000 – £26,500 | £26,000 – £33,500 |
Want a range for your exact size? The guide-price tool takes about a minute.
What happens next
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Your questions about a utility room extension in County Londonderry
Do you cover all of County Londonderry?
Yes, across the whole of County Londonderry. Site visits are free and there is no obligation.
How long does a utility room extension take to build in County Londonderry?
On site, typically 6 to 10 weeks once approvals are in place. Before that, allow 4–10 weeks design and approvals.
Who do I contract with for a utility room extension in County Londonderry?
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.
Does a utility extension need planning permission?
Often not, if it is single storey and within permitted development limits. We check this for your property.
How much does a utility room extension cost?
Our guide range is about £1,630 to £3,010 per m² including VAT, with a minimum of around £12,500. An 8 m² standard-spec utility is typically £15,000 to £19,500 in County Londonderry.
Book a free site visit in County Londonderry
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.