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 Greater London?
In Greater London, a planning or building regulations application typically costs £1,000–£3,250 for application management (council fees extra), including VAT at 20% (standard rate; planning application fees carry no VAT, council building control fees include VAT). Prices across London are typically 30% above the UK average for this kind of work, which is reflected in the range for Greater London. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Application management (council fees extra) | £1,000–£3,250 |
| Larger or more complex projects | £3,250–£4,000 |
The main things that change the cost:
- Revisions requested by the council
- Party wall surveyor appointments
- Council fees
- Type of application
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Planning and building regulations in Greater London
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.
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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
What we take care of:
- Lawful development certificate applications
- Building control application and inspections
- Permitted development assessment
- Party wall notices
- Prior approval (larger home extension) in England
- Planning or householder 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 Greater London
Many London boroughs have conservation areas and detailed design guides, so early design advice saves time at the planning stage.
Places we cover in Greater London include Acton, Balham, Barking, Barnes, Barnet and Battersea.
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 Greater London
What happens if I build without approval?
The council can take enforcement action, and missing approvals cause problems when selling. It is always better to get approvals first.
Do you handle planning and building regulations applications in Greater London?
Yes. We handle planning and building regulations applications across Greater London, including postcodes BR1, BR2, BR3, BR4 and BR5. Every project starts with a free home visit.
How much does a planning or building regulations application cost in Greater London?
In Greater London, a planning or building regulations application typically costs £1,000–£3,250 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.
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.
