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 Caernarfon?
In Caernarfon, 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). Building costs in Wales run about 8% below the UK average, and the figures for Caernarfon are adjusted to reflect that. 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:
- Council fees
- Planning conditions
- Building control route
- Party wall surveyor appointments
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Planning and building regulations in Caernarfon
Approvals for a planning or building regulations application in Caernarfon follow the rules for 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.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
What we take care of:
- Party wall notices
- Planning or householder applications
- Discharge of planning conditions
- Lawful development certificate applications
- Building control application and inspections
- 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 Caernarfon
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Caernarfon sits in Gwynedd, about 8 miles south-west of Bangor. We cover the whole of Caernarfon, including postcodes LL55.
How it works
- 01
Survey and brief
We visit, talk through what you want and record the existing building.
- 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 Caernarfon
How much does a planning or building regulations application cost in Caernarfon?
In Caernarfon, 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.
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.
Do you handle planning and building regulations applications in Caernarfon?
Yes. We handle planning and building regulations applications across Caernarfon, including postcodes LL55. 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.
How long does a planning decision take?
Councils aim to decide most householder applications within 8 weeks.