Planning permission for extensions in Lisburn
For Lisburn homeowners we handle planning permission for extensions, with fees agreed in writing before any work starts.
- Guide price in LisburnFrom £300 inc VAT
- PlanningWe find the right route for you
- Timescale8–13 weeks typical decision period
- Postcode districtsBT10, BT11, BT17, BT27, BT28
What we take care of
- Submission and fee payment guidance
- Application forms, plans and supporting statements
- Planning history and constraints check for your address
- Advice if conditions are attached or changes are requested
Working in Lisburn
We cover Lisburn and the postcode districts BT10, BT11, BT17, BT27, BT28. We also work in nearby Belfast (7 miles), Castlereagh (7 miles), Newtownabbey (11 miles), Antrim (15 miles).
Just over the County Down border, Newtownards is about 15 miles away. In Northern Ireland, extension projects follow the NI planning rules and council building control, which we account for from the first survey.
Planning rules that apply in Lisburn
In Northern Ireland we check the permitted development limits for your house type and, where needed, apply to your council for planning permission, then submit full plans or a building notice to council building control.
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.
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.
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.
Fees in Lisburn
These are guide fees for Lisburn, adjusted for Northern Ireland (×0.86) and including VAT. Council application and inspection fees are paid separately.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Permitted development confirmed in writing (certificate or notification) | £300 – £600 |
| Standard | Householder planning application handled | £500 – £950 |
| Premium | Application with heritage or design statements, and responses to the council | £750 – £1,400 |
Our handling fee only. Council fees are extra and are set by the Northern Ireland Executive. Drawings are priced separately.
For a figure based on your own dimensions, use our guide-price tool.
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
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
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Common questions in Lisburn
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 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.
Do I need building regulations approval in Lisburn?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
What happens if planning is refused?
You can revise the design and reapply, or appeal. We read the officer’s report and tell you honestly which option has a better chance.
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.