What is a set of architectural drawings?
Architectural design turns your ideas into drawings that a council and a builder can work from. It starts with a measured survey of the house, then design options, planning drawings and, once approved, detailed building regulations drawings and specifications.
How much does a set of architectural drawings cost in Belfast?
In Belfast, a set of architectural drawings typically costs £1,250–£3,750 for planning and building regulations drawings for a typical extension, including VAT at 20% (standard rate). That range is adjusted for Northern Ireland, where domestic building work typically costs around 14% below the national average. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Planning and building regulations drawings for a typical extension | £1,250–£3,750 |
| Larger or more complex projects | £3,750–£4,750 |
The main things that change the cost:
- Measured survey complexity
- Structural engineer’s fees
- 3D visuals
- Project size and complexity
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Planning and building regulations in Belfast
Before anything is built in Belfast, we confirm which approvals apply in Northern Ireland. In Northern Ireland drawings are prepared for the council’s planning service and building control.
Northern Ireland has no Party Wall Act. Work on shared walls relies on agreement with the neighbour and common law, so we agree the arrangements in writing before work starts.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
Handled as part of most architectural drawings:
- Planning drawings: plans, elevations, site and location plans
- Written agreement with neighbours on shared walls
- 3D views on request
- Measured survey of the existing house
- Building regulations drawings and specification
- Tender-ready drawing pack
How long does it take?
Allow 2 to 6 weeks for drawings, depending on complexity. If the drawings are for a planning application, add the council’s decision period once they are submitted.
Building in Belfast
Northern Ireland has many detached and semi-detached homes on generous plots, which suits single-storey rear extensions and garage conversions.
From BT1 outwards, we take on projects throughout Belfast and the surrounding parts of County Antrim.
How it works
- 01
Survey and brief
We visit, talk through what you want and record the existing building.
- 02
Concept design
Options for layout and appearance, revised until you are happy.
- 03
Application drawings
Plans, elevations and supporting documents prepared for the council.
- 04
Approval
We follow the application through to a decision and pass on the approved drawings.
Questions about architectural drawings in Belfast
Do I need an architect?
Not necessarily. For extensions and lofts, an architectural technician’s drawings are common. For complex or sensitive sites, an architect may be better.
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
How much does a set of architectural drawings cost in Belfast?
In Belfast, a set of architectural drawings typically costs £1,250–£3,750 for planning and building regulations drawings for a typical extension, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Do you prepare architectural drawings in Belfast?
Yes. We prepare architectural drawings across Belfast, including postcodes BT1, BT2, BT3 and BT4. Every project starts with a free home visit.
Do you prepare structural calculations?
We coordinate a chartered structural engineer for calculations and beam designs.