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 Hounslow?
In Hounslow, 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). Prices across London are typically 30% above the UK average for this kind of work, which is reflected in the range for Hounslow. 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:
- Project size and complexity
- 3D visuals
- Number of design options
- Measured survey complexity
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Planning and building regulations in Hounslow
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:
- Building regulations drawings and specification
- Measured survey of the existing house
- Structural calculations coordinated
- Planning drawings: plans, elevations, site and location plans
- 3D views on request
- 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 Hounslow
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 Hounslow coverage includes postcode districts TW3, TW4 and TW6, and we also work in nearby places such as Feltham, Southall and Twickenham.
How it works
- 01
Measured survey
We visit and measure the house so the drawings start from accurate information.
- 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 Hounslow
Do you prepare architectural drawings in Hounslow?
Yes. We prepare architectural drawings across Hounslow, including postcodes TW3, TW4 and TW6. Every project starts with a free home visit.
How much does a set of architectural drawings cost in Hounslow?
In Hounslow, 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.
How long do drawings take?
Typically 2 to 6 weeks from survey, depending on revisions.
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
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.