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 Chepstow?
In Chepstow, 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 Wales, where domestic building work typically costs around 8% 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 |
The biggest cost drivers are:
- Revisions requested by the council
- Building control route
- Planning conditions
- Party wall surveyor appointments
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 Chepstow
Here is how the rules work for a planning or building regulations application in Wales. In Wales applications go to the local planning authority, and building control can be the council or a registered building control approver.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
From survey to sign-off, the job normally involves:
- Party wall notices
- Discharge of planning conditions
- Building control application and inspections
- Lawful development certificate applications
- Planning or householder applications
- Build-over agreements with the water company
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 Chepstow
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Projects in Chepstow (NP16) are surveyed in person before we quote, so the price reflects your actual property.
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 Chepstow
Do you handle planning and building regulations applications in Chepstow?
Yes. We handle planning and building regulations applications across Chepstow, including postcodes NP16. Every project starts with a free home visit.
How much does a planning or building regulations application cost in Chepstow?
In Chepstow, 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.
How long does a planning decision take?
Councils aim to decide most householder applications within 8 weeks.
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 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.
