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 Blackheath?
In Blackheath, 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). Building costs in London run about 30% above the UK average, and the figures for Blackheath are adjusted to reflect that. 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:
- Measured survey complexity
- 3D visuals
- Structural engineer’s fees
- Planning or building regulations stage
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Planning and building regulations in Blackheath
Before anything is built in Blackheath, we confirm which approvals apply in England. In England drawings are prepared to suit the local planning authority’s validation list and, later, building control.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
Handled as part of most architectural drawings:
- Measured survey of the existing house
- Structural calculations coordinated
- Planning drawings: plans, elevations, site and location plans
- Tender-ready drawing pack
- Building regulations drawings and specification
- Party wall drawings where needed
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 Blackheath
Many London boroughs have conservation areas and detailed design guides, so early design advice saves time at the planning stage.
Projects in Blackheath (SE3) are surveyed in person before we quote, so the price reflects your actual property.
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
Submission and follow-up
We submit the application and deal with questions from the council or building control.
Questions about architectural drawings in Blackheath
How much does a set of architectural drawings cost in Blackheath?
In Blackheath, 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.
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.
How long do drawings take?
Typically 2 to 6 weeks from survey, depending on revisions.
Do you prepare architectural drawings in Blackheath?
Yes. We prepare architectural drawings across Blackheath, including postcodes SE3. Every project starts with a free home visit.
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
