Lisburn orangery extensions, designed and built
We design and build orangery extensions for houses in Lisburn, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in LisburnFrom £25,500 inc VAT
- PlanningNI permitted development (rear 3–4 m) or planning
- Build time10–16 weeks on site
- Postcode districtsBT10, BT11, BT17, BT27, BT28

Is an orangery extension right for your house?
- Those who want daylight without overheating
- Period and detached houses with a garden view
- Homeowners replacing an older conservatory
Planning and approvals in Lisburn
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.
The planning position for a specific Lisburn address depends on its history and any designations, which is why we check it at the first visit.
Building close to a public sewer needs the agreement of NI Water, which we check during design.
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.
Extensions in and around Lisburn
Our survey diary covers Lisburn, including BT10, BT11, BT17, BT27, BT28. Nearby, we also take on projects in Belfast (7 miles), Castlereagh (7 miles), Newtownabbey (11 miles), Antrim (15 miles).
For homes towards County Down, Newtownards is around 15 miles away. 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 an orangery extension in Lisburn?
For Lisburn we adjust our national guide rates by ×0.86, the factor we use for Northern Ireland. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Lisburn: £2,060 to £3,870 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £25,500 – £31,500 | £28,500 – £36,500 | £35,000 – £46,500 |
| 4 m × 4 m 16 m² | £33,000 – £40,000 | £38,500 – £48,500 | £46,500 – £62,000 |
| 4 m × 6 m 24 m² | £49,500 – £60,000 | £57,500 – £72,500 | £70,000 – £93,000 |
For a figure based on your own dimensions, use our guide-price tool.
From first visit to completion
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
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
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
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 an orangery extension in Lisburn
How long does an orangery extension take to build in Lisburn?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 6–12 weeks design and approvals.
Do you cover all of Lisburn?
Yes. We cover Lisburn and the surrounding parts of County Antrim. Site visits are free and there is no obligation.
Who do I contract with for an orangery extension in Lisburn?
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.
How much does an orangery cost?
Our guide range is about £2,060 to £3,870 per m² including VAT, so a 16 m² standard-spec orangery is typically £38,500 to £48,500 in Lisburn.
Will an orangery be too hot in summer?
Not if it is designed with solar-control glass, a solid perimeter and ventilation. We size the lantern and opening vents with that in mind.
Book a free site visit in Lisburn
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.