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 Orpington?
In Orpington, a set of architectural drawings typically costs £2,000–£5,750 for planning and building regulations drawings for a typical extension, including VAT at 20% (standard rate). The guide for Orpington reflects typical costs in London, roughly 30% above the UK-wide figure. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Planning and building regulations drawings for a typical extension | £2,000–£5,750 |
| Larger or more complex projects | £5,750–£7,250 |
What moves the price most:
- Planning or building regulations stage
- Measured survey complexity
- Structural engineer’s fees
- Project size and complexity
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Planning and building regulations in Orpington
Whether you need planning permission depends on your house and its location in England. In England drawings are prepared to suit the local planning authority’s validation list and, later, building control.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
The work we manage on a set of architectural drawings:
- Planning drawings: plans, elevations, site and location plans
- Tender-ready drawing pack
- Structural calculations coordinated
- Measured survey of the existing house
- Design options and sketch layouts
- Building regulations drawings and specification
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 Orpington
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
Our Orpington coverage includes postcode districts BR6, and we also work in nearby places such as Sidcup, Swanley and Bromley.
How it works
- 01
Measured survey
We visit and measure the house so the drawings start from accurate information.
- 02
Design options
Sketch layouts to agree the approach before detailed drawing starts.
- 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 Orpington
Do you prepare architectural drawings in Orpington?
Yes. We prepare architectural drawings across Orpington, including postcodes BR6. Every project starts with a free home visit.
What are building regulations drawings?
More detailed drawings and specifications showing structure, insulation, fire safety, drainage and ventilation, used for building control approval and pricing.
What drawings are needed for planning?
Usually existing and proposed floor plans and elevations, a block plan and a location plan. Some councils need more.
Do you prepare structural calculations?
We coordinate a chartered structural engineer for calculations and beam designs.
How much does a set of architectural drawings cost in Orpington?
In Orpington, a set of architectural drawings typically costs £2,000–£5,750 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.