Utility and boot room extensions in Seaham: design, approvals and build
Thinking about a utility room extension for your Seaham home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in SeahamFrom £12,500 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time6–10 weeks on site
- Postcode districtsSR7
What is included
- Ventilation for a tumble dryer
- Waste and water connections
- Back door and a hard-wearing floor
- Built-in storage or space ready for your units
- Design around appliances, sink and storage
Covering Seaham
Site visits are available across Seaham (SR7). Nearby, we also take on projects in Peterlee (5 miles), Chester-le-Street (9 miles), Durham (10 miles), Hartlepool (12 miles).
Houghton-le-Spring, in Tyne and Wear, is roughly 5 miles from Seaham and also on our list. Across the North East, houses often have rear yards or modest gardens, so compact, well-lit single-storey extensions make the biggest difference.
Will the council need to approve it?
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
How much does a utility room extension cost in Seaham?
Labour and material costs vary across the UK, so for Seaham we use our North East England factor (×0.91). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Seaham: £1,730 to £3,180 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 2 m × 2.5 m 5 m² | £12,500 – £15,500 | £12,500 – £16,000 | £12,500 – £16,000 |
| 2.5 m × 3.2 m 8 m² | £13,500 – £16,500 | £16,000 – £20,500 | £20,000 – £25,500 |
| 3 m × 3.6 m 11 m² | £19,000 – £23,000 | £22,500 – £28,500 | £28,000 – £35,500 |
For a figure based on your own dimensions, use our guide-price tool.
How the project works
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
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
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.
Questions people ask about utility room extensions
Do you cover all of Seaham?
Yes. We cover Seaham and the surrounding parts of County Durham. Site visits are free and there is no obligation.
Who do I contract with for a utility room extension in Seaham?
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.
Do I need building regulations approval in Seaham?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
How much does a utility room extension cost?
Our guide range is about £1,730 to £3,180 per m² including VAT, with a minimum of around £13,000. An 8 m² standard-spec utility is typically £16,000 to £20,500 in Seaham.
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.
Book a free site visit in Seaham
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.