Demolition Costs UK 2026: Strip-Outs, Knockdowns & Site Clearance
Whether you are knocking down a garage, removing internal walls or clearing a site for a new build, here is what demolition costs in the UK and what to expect.
Demolition Cost Breakdown
| Job | Average Cost |
|---|---|
| Internal wall removal (non-load-bearing) | £500–£1,500 |
| Load-bearing wall removal (with RSJ) | £1,500–£4,000 |
| Garage demolition | £1,000–£3,000 |
| Chimney breast removal | £1,500–£4,000 |
| Conservatory demolition | £1,000–£2,500 |
| Outbuilding/shed demolition | £300–£1,000 |
| Full house demolition | £8,000–£25,000 |
| Site clearance (per day) | £500–£1,200 |
| Asbestos survey | £200–£400 |
| Asbestos removal (small area) | £500–£2,000 |
All prices include labour and waste disposal. Skip hire is usually included but confirm this in quotes.
Planning and Safety
Planning permission:
- Internal walls and outbuildings usually fall under permitted development
- Full house demolition requires a Section 80 demolition notice to your local council (56 days advance notice)
- Conservation area properties need planning permission for any demolition
- Party wall agreements are needed when demolishing shared or adjoining structures
Safety requirements:
- Asbestos survey is legally required before any demolition of pre-2000 buildings
- Licensed asbestos removal contractors must handle any asbestos found
- Structural engineer sign-off is needed for load-bearing wall removal
- Building control notification is required for structural alterations
Choosing a contractor:
- NFDC (National Federation of Demolition Contractors) members follow strict safety standards
- Check for public liability insurance (minimum £5 million)
- Ask for waste transfer notes — all demolition waste must be disposed of legally
Frequently Asked Questions
Do I need planning permission to demolish a garage?
How long does a typical demolition take?
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