What is a planning or building regulations application?

Planning permission decides whether a project can be built; building regulations decide how it must be built. Most extensions, lofts and conversions need building regulations approval even when planning permission is not required.
How much does a planning or building regulations application cost in Cambridge?
In Cambridge, a planning or building regulations application typically costs £750–£2,750 for application management (council fees extra), including VAT at 20% (standard rate; planning application fees carry no VAT, council building control fees include VAT). The guide for Cambridge reflects typical costs in the East of England, roughly 6% above the UK-wide figure. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Application management (council fees extra) | £750–£2,750 |
| Larger or more complex projects | £2,750–£3,500 |
What moves the price most:
- Type of application
- Party wall surveyor appointments
- Revisions requested by the council
- Council fees
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 Cambridge
Whether you need planning permission depends on your house and its location in England. In England householder applications, lawful development certificates and prior approvals for larger home extensions go to the local planning authority. Building control can be the council or a registered building control approver.
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
The work we manage on a planning or building regulations application:
- Prior approval (larger home extension) in England
- Building control application and inspections
- Build-over agreements with the water company
- Discharge of planning conditions
- Lawful development certificate applications
- Party wall notices
How long does it take?
Allow about 8 weeks for a householder planning decision (two months in Scotland). If the drawings are for a planning application, add the council’s decision period once they are submitted.
Building in Cambridge
Many towns in the East of England have estates built since the 1970s, where garage conversions and rear extensions are popular.
Cambridge sits in Cambridgeshire. We cover the whole of Cambridge, including postcodes CB5, CB21, CB22 and CB23.
How it works
- 01
Measured survey
We visit and measure the house so the drawings start from accurate information.
- 02
Design options
Sketch layouts to agree the approach before detailed drawing starts.
- 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 planning and building regulations applications in Cambridge
What is a lawful development certificate?
A certificate from the council confirming that a project is permitted development. It is optional but useful when selling the house.
Do you handle planning and building regulations applications in Cambridge?
Yes. We handle planning and building regulations applications across Cambridge, including postcodes CB5, CB21, CB22 and CB23. Every project starts with a free home visit.
How much does a planning or building regulations application cost in Cambridge?
In Cambridge, a planning or building regulations application typically costs £750–£2,750 for application management (council fees extra), including VAT at 20% (standard rate; planning application fees carry no VAT, council building control fees include VAT). Your fixed price depends on the survey and drawings.
How long does a planning decision take?
Councils aim to decide most householder applications within 8 weeks.
Who carries out building control?
Either the council’s building control service or, in England and Wales, a private building control body registered to do the work. In Scotland and Northern Ireland building control is provided by the council.
