Can I Put a Storage Container in My Garden? (UK Rules Explained)

Every autumn we hear the same question: “Can I put a storage container in my garden?” Usually it comes from someone whose garage is full, whose shed has given up, or who’s been quoted silly money for a garden office. A 10ft or 20ft steel container looks like the perfect answer — big, secure, weatherproof, and far cheaper than an extension.

The honest answer is yes, many UK homeowners can — but the garden itself is the easy part. What actually decides it is delivery access, a level base, your neighbours, and the planning rules on your street. This guide covers all four, plainly.

The short answer

In most UK gardens you can place a storage container without planning permission if it sits behind the house, stays within permitted-development size and height limits, and the property isn’t listed or in a conservation area. Swift Secure Self Storage Containers in Salford advises also checking delivery access, the base and estate covenants before ordering.

Delivery access, a level base and estate covenants matter just as much as the planning rules, so check all four before you commit. A container suits some gardens brilliantly and others not at all — but moving a delivered container a second time isn’t cheap, so it’s worth getting the decision right first.

How much room does a garden container actually need?

A 10ft container needs about 3.1m × 2.5m of level ground; a 20ft needs roughly 6.1m × 2.5m. But the footprint is the easy part — you also need a straight, firm run for the delivery lorry, overhead clearance, and room for the doors to swing open. Most gardens fail on delivery access, not on space for the box.

Context helps. ONS analysis of Ordnance Survey data puts the average private outdoor space in Great Britain at around 330m² — but that includes the front garden, side passages and every awkward corner. A typical terraced or semi-detached back garden in Manchester or Salford is far smaller, and the usable rectangle shrinks further once you subtract the patio, the shed and the washing line.

So measure the real rectangle. A 20ft unit is 6.06m long and 2.44m wide; a 10ft is 3.05m long. Allow working room around the sides you need to reach, and remember the doors open a full 270 degrees and latch back against the walls — they need clear space at the door end. Then there’s delivery: containers arrive on tilt-bed lorries or HIAB crane vehicles needing a firm, straight approach, and the driver needs several metres of overhead clearance. Soft lawns, tight corners and low cables are all deal-breakers. And don’t forget the weight — an empty 20ft weighs over two tonnes, plus everything you load into it, year after year.

Getting the ground right before it arrives

A container must sit level on a firm, free-draining base — railway sleepers, concrete pads or compacted hardcore all work, while bare soil and lawns do not. An unlevel base twists the frame so the doors bind, and standing water underneath accelerates corrosion. Sort the base before delivery day, not after.

This is the step most garden-container plans skip, and the one that causes most regret. Containers are designed to sit on their four corner castings, level and supported. On soft or sloping ground they settle unevenly, the box racks slightly out of square, and the locking rods stop engaging while rainwater finds its way past the door gaskets. Levelling a two-tonne box after delivery is a miserable job — do it first.

A proper base is simple: a level bed of compacted MOT Type 1 hardcore, concrete paving pads under each corner, or pressure-treated sleepers laid level on compacted ground. Keep the underside ventilated and draining — containers have passive vents in the walls, and airflow underneath matters just as much. Our condensation guide explains the moisture physics, and it’s worth reading before committing to a garden spot, because a container tucked into a damp, shaded corner behaves very differently from one in open air.

Do you need planning permission for a garden container?

In England, a garden container is often covered by permitted development rights as an incidental outbuilding — but not if it sits forward of the house, tops 2.5m within 2m of a boundary, covers over half the garden, or the property is listed or in a conservation area. If any of those apply, check with your council first.

This is the question with the most expensive wrong answers, so we’ve written it up in full: do you need planning permission for a storage container? The garden version is that most ordinary houses with ordinary back gardens are fine — though note a standard 20ft container is 2.59m tall, so keep it 2m or more from the fence to stay inside the height rule.

The traps are specific. New-build estates frequently carry restrictive covenants banning “temporary structures” regardless of what planning law allows; leasehold flats with shared gardens almost never have the right to place one; and conservation areas, listed buildings and Article 4 directions (where councils remove permitted development rights street by street) all play by stricter rules. Make that call before you pay a deposit anywhere.

Neighbours, fences and the things nobody warns you about

A container is big, steel and impossible to miss — so the neighbourly move is to mention it before delivery day, check any estate covenants in your deeds, and think about sightlines and delivery noise. Most neighbour disputes over garden containers aren’t about planning law at all; they’re about surprise, and surprise is avoidable.

Legally, neighbours can’t veto a lawful garden container. Practically, a 6-metre steel box appearing overnight next to someone’s patio is the fastest route to a council complaint — and even a complaint that goes nowhere costs you stress. A two-minute conversation beforehand prevents nearly all of it: what you’re putting in, where it’ll sit, and when the lorry’s coming.

Check your deeds for covenants too. Developers on estates built in the last twenty years routinely prohibit caravans, oversized sheds and “structures of a temporary nature” — and a container counts. These covenants are enforced by the developer or management company, not the council, which is why planning law can say yes while your deeds say no.

What works well in a garden container — and what doesn’t

Garden furniture, bicycles, tools, sports kit and boxed household goods store brilliantly in a garden container — they’re used to ambient temperatures and just need to stay dry and secure. What doesn’t work is anything needing power, heat or regular access: a workshop, gym or office needs electrics, insulation and ventilation a bare steel box lacks.

Be honest about the use case. If the job is “somewhere dry and lockable for the mower, the bikes and the Christmas decorations,” a garden container is close to perfect — which is why our container vs shed comparison tends to favour containers for security and sheds for simplicity. If the job is “somewhere to work through winter,” read our honest guide to heating a storage container first: heating an uninsulated steel box is inefficient, and running power to it is a separate project.

Two things to rule out early: anything needing mains power — fridges, freezers and dehumidifiers — and anything alive, flammable or perishable. Storing a mattress or upholstered furniture? Our mattress storage guide covers the wrapping and positioning that keeps it fresh.

When the garden doesn’t work: the storage-yard alternative

If access, covenants, space or neighbours rule out a garden container, a storage yard gives you the same box without the complications — no planning questions, no base to build, no lorry on your street. Swift Secure Self Storage Containers in Salford offers 10ft units from £25/week and 20ft units from £40/week, with 24/7 CCTV monitoring, open 7 days 9am–9pm.

This is where plenty of our customers land after measuring twice. By the time you’ve built a proper base, arranged a HIAB delivery and possibly argued with a management company, a yard unit at £25 a week looks like the calm choice — especially for seasonal storage. There’s no planning permission to think about, the ground is already level hardstanding, and what it costs is published upfront. Our yard is at 21 Cheltenham Street, Salford M6 6WY — no neighbour diplomacy required.

Still set on the garden route? Size it right first — our container size guide walks through 10ft vs 20ft with real loading examples. And if you’d like to see the units before deciding either way, call 07375 063637 or check the FAQs — we’re happy to talk through garden vs yard honestly, including telling you when the garden is the better answer.