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 St Helens?
In St Helens, a planning or building regulations application typically costs £750–£2,250 for application management (council fees extra), including VAT at 20% (standard rate; planning application fees carry no VAT, council building control fees include VAT). That range is adjusted for the North West, where domestic building work typically costs around 6% below the national average. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Application management (council fees extra) | £750–£2,250 |
| Larger or more complex projects | £2,250–£2,750 |
What moves the price most:
- Revisions requested by the council
- Building control route
- Party wall surveyor appointments
- Council fees
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 St Helens
Approvals for a planning or building regulations application in St Helens follow the rules for 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
From survey to sign-off, the job normally involves:
- Lawful development certificate applications
- Prior approval (larger home extension) in England
- Party wall notices
- Planning or householder applications
- Building control application and inspections
- Permitted development assessment
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 St Helens
Terraced streets across the North West often suit rear dormers and single-storey kitchen extensions.
St Helens sits in Merseyside, about 10 miles east of Liverpool. We cover the whole of St Helens, including postcodes WA10.
How it works
- 01
Survey and brief
We visit, talk through what you want and record the existing building.
- 02
Design options
Sketch layouts to agree the approach before detailed drawing starts.
- 03
Drawings and documents
The drawings and forms the council and building control need.
- 04
Approval
We follow the application through to a decision and pass on the approved drawings.
Questions about planning and building regulations applications in St Helens
How long does a planning decision take?
Councils aim to decide most householder applications within 8 weeks.
How much does a planning or building regulations application cost in St Helens?
In St Helens, a planning or building regulations application typically costs £750–£2,250 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.
Do you handle planning and building regulations applications in St Helens?
Yes. We handle planning and building regulations applications across St Helens, including postcodes WA10. Every project starts with a free home visit.
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.
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.
