Covering Hounslow
Our coverage around Hounslow (TW3, TW4, TW6) also includes Isleworth (1 miles to the north-east) and Heston.
Homes in London
Much of London’s housing is Victorian and Edwardian terraces, which is why side return extensions, rear dormers and mansards are so common. Many streets are in conservation areas, and several boroughs use Article 4 directions that remove some permitted development rights.
What goes into architectural design and planning?
Architectural design and planning covers everything before building starts: a measured survey of the house, design options, planning or permitted development drawings, the application itself, building regulations drawings and structural calculations. We offer it on its own or as part of a design-and-build project.
- Measured survey of the existing house
- Building regulations drawings and specification
- Structural engineer’s calculations
How much does architectural design and planning cost in Hounslow?
Use these ranges to budget for architectural design and planning; the survey turns them into a fixed price for the agreed specification.
| Architectural design and planning | Guide price incl. VAT |
|---|---|
| Measured survey and existing drawings | £500 to £1,200 |
| Planning drawings and application | £1,200 to £3,000 |
| Building regulations drawings and specification | £1,000 to £2,500 |
| Structural calculations | £500 to £2,000 |
Planning and building rules in Hounslow
In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.
We confirm whether your project is permitted development, needs prior approval or needs a householder application, and prepare the right submission. A lawful development certificate is the best proof that permitted development work is lawful.
What should I think about before starting?
- Pre-application advice from the council can help on sensitive sites.
- Conservation areas and listed buildings need extra design care and supporting statements.
How does the project run?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Your questions answered
Can I use your drawings with another builder?
Yes. If you buy drawings on their own, they are yours to use.
How long does planning take?
Councils aim to decide householder applications within eight weeks of validation.
Can you visit a house in Hounslow to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Architectural design and planning in nearby towns
- Architectural design and planning in Isleworth
- Architectural design and planning in Heston
- Architectural design and planning in Richmond
- Architectural design and planning in Hanworth
Learn more about architectural design and planning, or see every project we cover in Hounslow.

