Cost of Building a Shed in the UK (2025)
A standard garden shed costs £300–£3,000+ depending on size and material. A bespoke timber shed built by a carpenter starts from £1,500.
Flat-pack vs custom-built shed
Flat-pack sheds from DIY stores are the cheapest option at £200–£800 but require assembly and have a shorter lifespan. A custom-built timber shed constructed by a joiner or carpenter is far more durable, can be made to any size, and adds genuine value to your garden.
Does a shed need planning permission?
Most garden sheds are permitted development — no planning permission required — provided the shed is single-storey, less than 2.5m tall if within 2m of a boundary, and used for domestic purposes. If you live in a conservation area, listed building, or the shed will be at the front of the property, check with your local council first.
Cost Breakdown
All prices are indicative UK averages for 2025. Actual costs vary by location, specification, and contractor. London and South East rates are typically 20–35% higher.
| Item | Low | High |
|---|---|---|
| Small timber shed (6x4ft) | £300 | £600 |
| Medium shed (8x6ft) | £500 | £1,200 |
| Large shed (10x8ft) | £800 | £2,000 |
| Custom timber shed (any size) | £1,500 | £5,000 |
| Concrete base (for shed) | £200 | £600 |
| Metal shed (medium) | £250 | £600 |
What Affects the Cost?
- ✓Shed size and height
- ✓Material — timber, metal, or composite
- ✓Whether a concrete or paved base is needed
- ✓Bespoke features — windows, lining, electrics, shelving
- ✓Access to the garden for delivery and construction
- ✓Location — London and South East rates are higher
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Post a Job — It's FreeFrequently Asked Questions
Can I get an electrician to wire my shed?
Yes — many homeowners have their shed wired for lighting, sockets, and even heating. This needs to be done by a registered electrician and costs £300–£900 depending on the distance from the consumer unit.
Do I need a base for my shed?
A solid, level base is strongly recommended. Concrete is most durable. Pressure-treated timber bearers or paving slabs are also used. Without a base, sheds rot quickly at the bottom.
How long does a timber shed last?
A well-made pressure-treated timber shed lasts 15–30 years with basic maintenance (annual treatment). Cheap flat-pack sheds may only last 5–10 years.