Antrim, County Antrim
Rear extension planning drawings in Antrim
Rear extension planning drawings in Antrim: measured survey, design options, planning drawings and the application, handled for you. We measure the house, show you what the rules allow, price it in writing and build it.
Antrim sits in County Antrim, with postcode districts including BT41. Planning applications in Antrim go to the local planning authority covering Antrim, and we check its local design guidance for rear extensions before drawing.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Antrim?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. Planning fees in Northern Ireland are set by the Department for Infrastructure; we confirm the current householder fee when we submit. Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a rear extension in Antrim?
Planning for a rear extension in Antrim follows the Northern Irish householder rules.
Northern Ireland's 2015 Order allows a two-storey rear extension of up to 3 metres where at least 7 metres is left to the rear boundary. Anything larger, or in a conservation area, needs a planning application to the council.
Northern Ireland councils work to a 15-week target for local applications, which include householder extensions; many householder decisions come sooner.
Conservation areas, Areas of Outstanding Natural Beauty and listed buildings restrict permitted development in Northern Ireland. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Antrim like to extend?
Antrim has terraces near the centre, semis on the edges and many detached houses and bungalows in the surrounding countryside, where plots are often generous.
How a rear extension in Antrim comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for council building control.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Rear extension planning drawings near Antrim
Close by, we work in Ballymena, about 10.4 miles away, and Newtownabbey, about 12.7 miles away.
- Rear extension planning drawings in Ballymena
- Rear extension planning drawings in Newtownabbey
- Rear extension planning drawings in Belfast
- Rear extension planning drawings in Lisburn
- Rear extension planning drawings in Magherafelt
Other work in Antrim:
FAQ
Rear extension planning drawings questions in Antrim
Do you handle building control in Antrim?
Yes. We apply to the council's building control team and hand over the completion certificate.
How long does a rear extension take to build in Antrim?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
What postcode areas do you cover around Antrim?
Including BT41, and the surrounding County Antrim area.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
What do rear extension planning drawings cost in Antrim?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension and £2,000–£3,500 for a two-storey scheme, covering the measured survey, design options and the application. The council fee is extra.