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 Aylesbury?
In Aylesbury, a planning or building regulations application typically costs £750–£2,750 for application management (council fees extra), including VAT at 20% (standard rate; planning application fees carry no VAT, council building control fees include VAT). We start from a UK-wide guide and adjust it for the South East, where labour and materials are typically about 12% above average. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Application management (council fees extra) | £750–£2,750 |
| Larger or more complex projects | £2,750–£3,500 |
The main things that change the cost:
- Type of application
- Building control route
- Planning conditions
- Party wall surveyor appointments
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Planning and building regulations in Aylesbury
Approvals for a planning or building regulations application in Aylesbury 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.
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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
What we take care of:
- Planning or householder applications
- Lawful development certificate applications
- Prior approval (larger home extension) in England
- Discharge of planning conditions
- Permitted development assessment
- 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 Aylesbury
Commuter towns across the South East have many 1930s and post-war semis that suit rear extensions and hip-to-gable loft conversions.
Our Aylesbury coverage includes postcode districts HP19 and HP20, and we also work in nearby places such as Leighton Buzzard, Berkhamsted and Chesham.
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
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 Aylesbury
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.
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.
How much does a planning or building regulations application cost in Aylesbury?
In Aylesbury, a planning or building regulations application typically costs £750–£2,750 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 Aylesbury?
Yes. We handle planning and building regulations applications across Aylesbury, including postcodes HP19 and HP20. Every project starts with a free home visit.
How long does a planning decision take?
Councils aim to decide most householder applications within 8 weeks.
