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 Sevenoaks?
In Sevenoaks, 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 Sevenoaks reflects typical costs in the South East, roughly 12% 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 |
The biggest cost drivers are:
- Planning conditions
- Type of application
- Party wall surveyor appointments
- Building control route
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 Sevenoaks
Here is how the rules work for a planning or building regulations application 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.
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.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
The work we manage on a planning or building regulations application:
- Party wall notices
- Prior approval (larger home extension) in England
- Planning or householder applications
- Permitted development assessment
- Discharge of planning conditions
- Lawful development certificate applications
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 Sevenoaks
The South East has a broad mix of housing, from Victorian terraces in the towns to post-war semis and newer estates, so extension types vary street by street.
From TN13 outwards, we take on projects throughout Sevenoaks and the surrounding parts of Kent.
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
Approval
We follow the application through to a decision and pass on the approved drawings.
Questions about planning and building regulations applications in Sevenoaks
Do you handle planning and building regulations applications in Sevenoaks?
Yes. We handle planning and building regulations applications across Sevenoaks, including postcodes TN13. Every project starts with a free home visit.
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.
Do I need a party wall agreement?
In England and Wales, if your work affects a shared wall, boundary or nearby foundations, notices must be served. Neighbours can consent or appoint surveyors.
How much does a planning or building regulations application cost in Sevenoaks?
In Sevenoaks, 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.
What is the difference between planning permission and building regulations?
Planning permission controls what you build and how it looks and affects neighbours. Building regulations control how it is built: structure, fire safety, insulation and drainage.
