Demolition isn't just about swinging a sledgehammer — done properly, it involves planning, safety, waste disposal, and often utilities disconnection. Here's what homeowners should know before booking a demolition or site clearance job.
Do You Need Planning Permission or Building Control?
Most demolition work doesn't require full planning permission, but you may need to notify your local council's building control department — especially for larger structures. If the building is in a conservation area or is a listed building, different rules apply entirely. Always check before starting.
Common Demolition Jobs and Typical Costs
| Job | Typical Cost |
|---|---|
| Single garage demolition and removal | £500–£1,200 |
| Single-storey extension demolition | £800–£2,500 |
| Internal wall removal (non-structural) | £300–£800 |
| Internal wall removal (load-bearing, with RSJ) | £1,500–£3,500 |
| Garden clearance / overgrown plot | £200–£800 |
| Concrete pad / driveway breakout | £300–£1,000 |
What Affects the Cost?
- Size and structure — a timber garage is far cheaper to demolish than a brick one
- Access — tight side access means materials have to be removed by hand or through the house
- Asbestos — if asbestos is present, specialist removal is legally required and significantly more expensive
- Waste disposal — skip hire and tip fees are a major cost component; ask if they're included in the quote
- Utilities — gas, water, or electricity connections need to be safely disconnected before demolition
Load-Bearing vs Non-Structural Walls
Removing an internal wall is one of the most common demolition jobs — but it's critical to know whether the wall is load-bearing. A load-bearing wall needs a structural engineer's calculation and an RSJ (rolled steel joist) to support the floor above. Never let a tradesperson remove a wall without confirming whether it's structural first.
Site Clearance
If you've just bought a plot or a property with an overgrown garden, a clearance job typically involves removing vegetation, rubble, old sheds, and general waste. Most clearance specialists charge by the day or by the load (skip or van).
Always Use Insured Specialists
Demolition carries real safety risks — falling debris, dust, and structural collapse. Always use an insured, experienced demolition specialist, and confirm they handle waste disposal legally (registered waste carrier).