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 Uxbridge?
In Uxbridge, 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). The guide for Uxbridge reflects typical costs in London, roughly 30% above the UK-wide figure. 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
- Planning conditions
- Council fees
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 Uxbridge
The approval route for Uxbridge is set by planning law 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.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
On a typical planning or building regulations application we handle:
- Discharge of planning conditions
- Planning or householder applications
- Permitted development assessment
- Lawful development certificate applications
- Building control application and inspections
- 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 Uxbridge
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
We work across Uxbridge and neighbouring areas such as Ruislip, Gerrards Cross and Northolt. Postcodes we cover in Uxbridge include UB8.
How it works
- 01
Measured survey
We visit and measure the house so the drawings start from accurate information.
- 02
Concept design
Options for layout and appearance, revised until you are happy.
- 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 Uxbridge
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.
How long does a planning decision take?
Councils aim to decide most householder applications within 8 weeks.
Do you handle planning and building regulations applications in Uxbridge?
Yes. We handle planning and building regulations applications across Uxbridge, including postcodes UB8. Every project starts with a free home visit.
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.
How much does a planning or building regulations application cost in Uxbridge?
In Uxbridge, 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.
