Extension plans and drawings across Ballymena
For Ballymena homeowners we handle extension plans and drawings, with fees agreed in writing before any work starts.
- Guide price in BallymenaFrom £1,000 inc VAT
- PlanningWe find the right route for you
- Timescale2–6 weeks for drawings
- Postcode districtsBT42, BT43
What is included
- Two or three layout options to compare
- 3D views to check the look and the light (full pack)
- Planning drawings: existing and proposed plans and elevations, site and location plans
- Structural calculations from an engineer (full pack)
- Measured survey of the house and garden
- Building regulations drawings and specification
The most expensive changes are the ones made after the steel is ordered. A good design stage settles layout, heights, glazing and services on paper, so the build price is firm.
Design and approval fees for Ballymena
Guide fees for Ballymena including VAT, using our Northern Ireland factor of ×0.86. Council and building control charges are not included.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Measured survey and planning drawings | £1,000 – £1,900 |
| Standard | Planning drawings plus building regulations drawings | £1,850 – £3,300 |
| Premium | Full pack with structural calculations and 3D visuals | £2,900 – £4,750 |
Try the guide-price tool to see a range for your own size and finish.
Covering Ballymena
We cover Ballymena and the postcode districts BT42, BT43. The same team covers Antrim (10 miles), Larne (18 miles), Newtownabbey (20 miles), Carrickfergus (21 miles), all within easy reach.
In Northern Ireland, extension projects follow the NI planning rules and council building control, which we account for from the first survey.
Will the council need to approve it?
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.
The planning position for a specific Ballymena address depends on its history and any designations, which is why we check it at the first visit.
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.
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
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Common questions in Ballymena
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Ballymena, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do I need building regulations approval in Ballymena?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
How long does this take for a Ballymena home?
2–6 weeks for drawings, depending on the council and the complexity of the project.
How much do extension plans cost?
Our design packs range from about £1,000 to £4,750 including VAT, from planning drawings only to a full pack with building regulations drawings, structural calculations and 3D views. Council fees are separate.
Do I need an architect?
Not necessarily. For most extensions an experienced designer or architectural technologist is enough. For listed buildings or complex sites an architect’s input can help.
Book a free site visit in Ballymena
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.