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 Portsmouth?
In Portsmouth, a set of architectural drawings typically costs £1,750–£5,000 for planning and building regulations drawings for a typical extension, including VAT at 20% (standard rate). Building costs in the South East run about 12% above the UK average, and the figures for Portsmouth are adjusted to reflect that. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Planning and building regulations drawings for a typical extension | £1,750–£5,000 |
| Larger or more complex projects | £5,000–£6,250 |
The main things that change the cost:
- Planning or building regulations stage
- Project size and complexity
- Number of design options
- 3D visuals
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 Portsmouth
The approval route for Portsmouth is set by planning law 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
From survey to sign-off, the job normally involves:
- Measured survey of the existing house
- 3D views on request
- Party wall drawings where needed
- Structural calculations coordinated
- 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 Portsmouth
Commuter towns across the South East have many 1930s and post-war semis that suit rear extensions and hip-to-gable loft conversions.
Projects in Portsmouth (PO5) are surveyed in person before we quote, so the price reflects your actual property.
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
Submission and follow-up
We submit the application and deal with questions from the council or building control.
Questions about architectural drawings in Portsmouth
How much does a set of architectural drawings cost in Portsmouth?
In Portsmouth, a set of architectural drawings typically costs £1,750–£5,000 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.
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.
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
Do you prepare architectural drawings in Portsmouth?
Yes. We prepare architectural drawings across Portsmouth, including postcodes PO5. Every project starts with a free home visit.