Know your rights, know your clues

Most sheds, summerhouses and garden offices fall under permitted development rights — meaning no planning application is needed — as long as you stay within the limits:

• Max 2.5m high within 2m of a boundary; up to 3m (flat roof) or 4m (dual-pitched) further away.
• Max 50% of your total garden covered by outbuildings.
• Can't be forward of the principal elevation (front) of the house.
• No sleeping accommodation.

You will need planning permission for a building over 30 sq m, any structure on a listed building or in a conservation area, or anything used as living or rental accommodation.

Planning Portal — outbuildings →

No permission is needed under 2m high — or 1m beside a public highway. Anything taller, or any boundary work on a listed building or in a conservation area, generally needs permission.

Ownership: there is no legal rule that you own the left-hand or right-hand fence by default. It comes down to your deeds and the Land Registry plan — check those before you assume, cut down or paint a boundary fence.

The Party Wall etc. Act 1996 requires formal written notice for certain work on or near a shared boundary — important if you're rebuilding a wall or excavating close by.

GOV.UK — owning a boundary →

A tree under a Tree Preservation Order (TPO) needs written consent from the council before any work — fines for breaching a TPO can reach £20,000 in a magistrates' court and are unlimited in the Crown Court.

• In a conservation area, give six weeks' written notice for any tree over 75mm trunk diameter (at 1.5m height).
• High hedges (evergreen or semi-evergreen over 2m) fall under Part 8 of the Anti-social Behaviour Act 2003 — the council can act if a hedge is affecting a neighbour's reasonable enjoyment.
• Single trees and fully deciduous hedges are excluded from the high-hedge rules.

GOV.UK — tree preservation orders →

Paving over a front garden with non-permeable materials may need planning permission if it covers more than 5 sq m. Permeable options — block paving, gravel, soakaways, French drains and rain gardens — normally avoid that requirement.

Redirecting surface water into the public sewer without permission is unlawful. If you're replacing hard surfacing or improving drainage, it's worth planning for how rainwater will get away properly.

Planning Portal — paving your front garden →

Bright, badly-aimed or over-bright security lighting can be a statutory nuisance under the Environmental Protection Act 1990 if it disturbs neighbours. Aim lights down, use warm, low-glare fittings and add a timer or sensor where you can.

All fixed electrical work outdoors must comply with Part P of the Building Regulations — use a Part P registered electrician and choose IP-rated, weatherproof, externally-rated fittings.

GOV.UK — Part P electrical safety →

Decking and other raised structures are a common source of neighbour disputes, especially in terraced and semi-detached streets. Planning permission is needed if any of these apply:

• The structure is more than 300mm above ground level.
• It creates overlooking or privacy issues for a neighbour.
• Combined coverage of all buildings and structures exceeds 50% of the garden.

Even when no formal permission is needed, talk to your neighbour before you build — a little courtesy avoids most disputes.

Planning Portal — decking →

Temporary, portable or above-ground tubs and pools are generally fine without permission. But an in-ground or permanent pool, along with its plant room and associated paving, often needs planning consent — and always check the setbacks and noise rules for the pump.

A hot tub placed near a fence or shed can become a noise nuisance to a neighbour's bedroom or living room, so position it thoughtfully and let people know it's coming.

Planning Portal — swimming pools →

Greenhouses, pergolas, polytunnels and similar garden structures usually fall under permitted development so long as they meet the same height and size limits as garden buildings, and sit within the boundary rules.

• Must not block public access paths or rights of way.
• Must not be forward of the principal elevation.
• Keep combined garden coverage under 50%.

Planning Portal — common projects →

Many garden species are legally protected. Disturbing them — even while clearing or felling — can be an offence.

• Nesting birds: avoid any cutting, trimming or removal of hedges, trees or shrubbery in the nesting season (roughly February to August) where nests may be active.
• Bats and their roosts are protected under the Wildlife and Countryside Act 1981. If bat activity is suspected, stop work and seek advice.
• Badger setts cannot be disturbed without a licence.

GOV.UK — protected species guidance →

There is no general ban on bonfires in the UK, but you cannot cause a statutory nuisance to your neighbours — and regular, smoky or disruptive burning can lead to a council complaint.

• Burning household waste, plastic, rubber or painted/treated wood is prohibited.
• Keep fires small, of dry, untreated garden material, at a reasonable hour and downwind of the neighbours.
• Composting and council green-waste collections are the lower-stress alternatives.

GOV.UK — the rules about garden bonfires →