Covering Chatham
Chatham sits 8 miles north of Maidstone, with Gillingham 1 miles to the north-east and Rochester 1 miles to the north-west.
Homes in the South East
Many South East homes are inter-war or post-war semis and detached houses with room for rear and side extensions, while historic town centres and villages bring conservation area and listed building controls.
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
- Submission and liaison with the planning officer
- Building regulations drawings and specification
What will architectural design and planning cost?
Typical ranges for architectural design and planning. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.
| 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 |
Do you need permission for architectural design and planning in Chatham?
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?
- Planning and building regulations are separate approvals; most projects need building regulations even when planning is not needed.
- Conservation areas and listed buildings need extra design care and supporting statements.
From first call to completion
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Your questions answered
How much do extension plans cost?
Typically £3,000 to £7,000 including VAT from measured survey to building regulations drawings, plus council fees.
How long does planning take?
Councils aim to decide householder applications within eight weeks of validation.
Can you visit a house in Chatham 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.
Also covering
- Architectural design and planning in Gillingham
- Architectural design and planning in Rochester
- Architectural design and planning in Strood
- Architectural design and planning in Maidstone
Learn more about architectural design and planning, or see every project we cover in Chatham.

