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Home office extensions in Craigavon: design, approvals and build

From the first sketch to final sign-off, we plan and build home office extensions in Craigavon and the surrounding County Armagh area.

  • Guide price in CraigavonFrom £13,500 inc VAT
  • PlanningNI permitted development (rear 3–4 m) or planning
  • Build time8–12 weeks on site
  • Postcode districtsBT63, BT64, BT65, BT66
Home office extension with a desk facing a large garden window and a rooflight

Who a home office extension suits

  • Households that need a second quiet room
  • People who work from home most of the week
  • Homes where a loft or garden room is not practical

Planning rules that apply in Craigavon

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.

Homes in conservation areas, areas of townscape character and listed buildings have tighter rules, so we always check the property's status and planning history before design starts.

Building close to a public sewer needs the agreement of NI Water, which we check during design.

Northern Ireland has no Party Wall Act. Where work is on or close to a shared boundary, we agree access and protection with your neighbour in writing before work starts.

Applications are decided by your council, which handles local planning in Northern Ireland.

Working in Craigavon

Site visits are available across Craigavon (BT63, BT64, BT65, BT66). We also work in nearby Portadown (3 miles), Armagh (11 miles).

Banbridge, in County Down, is roughly 8 miles from Craigavon and also on our list. In Northern Ireland, extension projects follow the NI planning rules and council building control, which we account for from the first survey.

How much does a home office extension cost in Craigavon?

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 Craigavon: £1,590 to £2,920 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
2.5 m × 3.2 m
8 m²
£13,500 – £16,500£14,500 – £19,000£18,500 – £23,500
3 m × 3.6 m
11 m²
£17,500 – £21,000£20,000 – £26,000£25,500 – £32,500
3 m × 5 m
15 m²
£23,500 – £28,500£27,500 – £35,000£34,500 – £44,000

For a figure based on your own dimensions, use our guide-price tool.

Our process, step by step

Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.

  1. Free site visit

    A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.

  2. Design and approvals

    We draw the design, agree it with you and handle planning or permitted development checks and building regulations.

  3. Fixed written price

    The price is fixed in writing once the design is settled, with a clear programme and payment stages.

  4. 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 home office extensions

Who do I contract with for a home office extension in Craigavon?

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 see a price before committing to anything?

Yes. The guide prices on this page are adjusted for Craigavon, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.

Will my neighbours in Craigavon be involved?

If a planning application is needed, the council notifies neighbours. Where work is close to a shared boundary, we agree access and protection with them in writing.

How much does a home office extension cost?

Our guide range is about £1,590 to £2,920 per m² including VAT. An 11 m² standard-spec office is typically £20,000 to £26,000 in Craigavon.

Is an attached office better than a garden office?

An attached office shares the house heating and broadband, adds floor area to the home, and needs no garden path in the rain. A garden building can be cheaper and quicker but is a separate structure.

Book a free site visit in Craigavon

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 .

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