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 Erith?
In Erith, 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). That range is adjusted for London, where domestic building work typically costs around 30% above the national average. 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 |
The biggest cost drivers are:
- Number of design options
- 3D visuals
- Measured survey complexity
- Structural engineer’s fees
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 Erith
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
Handled as part of most architectural drawings:
- Measured survey of the existing house
- Building regulations drawings and specification
- 3D views on request
- Party wall drawings where needed
- Planning drawings: plans, elevations, site and location plans
- Design options and sketch layouts
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 Erith
Many London boroughs have conservation areas and detailed design guides, so early design advice saves time at the planning stage.
Our Erith coverage includes postcode districts DA8 and DA18, and we also work in nearby places such as Bexleyheath, Dartford and Welling.
How it works
- 01
Survey and brief
We visit, talk through what you want and record the existing building.
- 02
Design options
Sketch layouts to agree the approach before detailed drawing starts.
- 03
Drawings and documents
The drawings and forms the council and building control need.
- 04
Submission and follow-up
We submit the application and deal with questions from the council or building control.
Questions about architectural drawings in Erith
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 Erith?
In Erith, 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 you prepare structural calculations?
We coordinate a chartered structural engineer for calculations and beam designs.
Do you prepare architectural drawings in Erith?
Yes. We prepare architectural drawings across Erith, including postcodes DA8 and DA18. Every project starts with a free home visit.
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.