Commercial Occupiers

A self-storage facility on an employment site

6 min readBy PlanScope Editorial Team

Self-storage normally falls within Class B8, so the use class is rarely the problem. The objection is loss of employment capacity, and answering it takes marketing evidence, site-specific reasoning and a careful transport case.

Self-storage normally falls within Class B8, storage or distribution, which means a proposal on an industrial estate is often policy-compliant in use terms before anyone opens a drawing. The fight is almost never about the use class. It is about employment land: a self-storage building of 4,000 m² might be run by three or four staff, and a council protecting its industrial land supply will compare that with the twenty or thirty jobs a light industrial occupier would bring to the same plot.

Which use class self-storage falls into

Class B8 covers use for storage or as a distribution centre. Self-storage, where customers rent individual units and come and go to access their own goods, sits within that description in most cases, and councils generally treat it as B8.

Two variations complicate it. Where a substantial part of the floorspace is given over to retail sales of boxes, tape and packaging, the retail element may cross from ancillary into a separate use, which is a Class E activity and not permitted within a B8 consent. Where the operator adds van hire, that is a distinct activity that many councils treat as falling outside B8 altogether, so it should be applied for expressly rather than assumed.

If the site already has a B8 consent, check the planning history for conditions. A permission granted for a distribution depot may carry conditions on hours, vehicle movements or occupier identity that do not suit a facility open to the public seven days a week. Varying those under section 73 is a straightforward application, but it is an application, and it takes time you should allow for.

Employment land policy and the job density argument

Most local plans protect designated employment sites and resist uses that reduce their capacity to provide jobs. Self-storage is the classic test case because its floorspace-to-employment ratio is low compared with light industrial, manufacturing or even conventional warehousing with a picking operation.

Expect an objection framed in those terms, and answer it directly rather than ignoring it. The arguments that carry weight are the ones grounded in evidence about this site.

  1. Marketing evidence: how long the unit has stood vacant, at what rent, through which agents, and what enquiries were received and lost.
  2. Physical suitability: eaves height, yard depth, column spacing, floor loading and access geometry that rule out the occupiers the allocation assumed.
  3. The customer base: small businesses that use storage units as overflow, stock or trade storage, which keeps activity within the local economy.
  4. The alternative: continued vacancy, deterioration and the effect on the rest of the estate.

Where the local plan sets a job density expectation or a floorspace safeguarding policy, a Planning Statement has to engage with the actual policy wording rather than with a general argument about economic benefit. An Economic Impact Assessment helps on larger schemes where the comparison with an alternative employment use needs to be quantified.

Trip generation and why it is lower than retail

Self-storage generates few trips relative to its floor area, and that is one of the stronger arguments in its favour. Most customers visit occasionally rather than weekly, dwell times are long relative to trip numbers, and the peak is spread across the day and the weekend rather than concentrated in the commuter peaks.

Use trip rates from the TRICS database for the appropriate land use category and be careful about the sample. Facilities differ enormously in size and market, and a rate drawn from a small urban site does not transfer to a 6,000 m² unit on an estate road. A Transport Statement is usually the right level of evidence for a scheme of this kind, with a full assessment reserved for larger proposals or sensitive junctions.

Be honest about the vehicle mix. Customers arrive in cars, vans and hire vehicles, and the occasional customer arrives with a Luton van and a trailer. Show that the yard can take the largest vehicle likely to attend without reversing onto the estate road.

Access hours, lighting and the neighbours

Twenty-four hour access is a commercial selling point and a planning problem where the estate adjoins housing. Councils often condition access hours, either for the whole facility or for the yard and external areas, and negotiating that condition is easier at application stage than afterwards.

Security lighting is the companion issue. Column-mounted floodlighting across a yard, running all night, produces obtrusive light complaints from nearby dwellings and is straightforward to design out. Specify the mounting heights, the tilt, the upward light ratio and the control regime in a Lighting Assessment, and use the environmental zone appropriate to the location.

Plant is usually modest on a self-storage site, but climate-controlled facilities have condensers and air handling, and a Noise Impact Assessment may be asked for where housing is close. Shutter noise at unsociable hours generates more complaints than the plant does, and roller shutters on external units are worth specifying for quiet operation from the outset.

Servicing and vehicle circulation

Design the yard around the vehicle that causes the problem, not the average one. That means swept path analysis for the largest hire van, space for two customers to load simultaneously near the goods lift, and a loading bay arrangement that does not block the circulation route when occupied.

External unit doors change the pattern entirely. A drive-up facility spreads vehicles around the perimeter and needs more manoeuvring space than a single-entrance building with internal corridors and trolleys. If the scheme mixes both, model the busy Saturday rather than the Tuesday.

Fire safety and the stored goods question

Fire is the issue that surprises applicants. A building full of unknown contents in sealed units is difficult to risk-assess, and the fire authority will take an interest in compartmentation, sprinkler provision, access for appliances and water supplies. Building Regulations and the Regulatory Reform (Fire Safety) Order 2005 carry most of this, not planning.

What planning controls is the layout that makes fire service access possible: hardstanding capable of taking an appliance, a route to within the required distance of the building, and hydrant positions. Sort those on the site plan. A scheme that has to be redesigned after a fire authority consultation response loses weeks.

Conditions on ancillary trade counter sales

Where the operator wants to sell packaging materials, apply for it and accept a condition. The usual form restricts retail sales to a stated floor area, limits the goods to items ancillary to the storage use, and prevents any separate retail operation. That protects the applicant too, because it puts beyond argument what the consent allows.

Councils resist open-ended retail on employment land for sequential test reasons, and if the counter grows into a shop the council can enforce against it. A modest, conditioned allowance is worth more than an unconditioned ambiguity.

One more practical point on conditions. Ask the officer to word the hours condition around customer access rather than around the operation of the building, so that staff can still take deliveries and carry out maintenance outside those hours. The difference costs nothing at the drafting stage and saves an application to vary the condition two years later.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. Enter your postcode on PlanScope to see which reports a storage scheme is likely to need.

Frequently asked questions

Is self-storage a B8 use?

In most cases yes. Class B8 covers storage or distribution, and self-storage sits within that description. Retail sales of packaging can cross from ancillary into a separate Class E activity if the floorspace is substantial, and van hire is often treated as a distinct use outside B8, so both should be applied for expressly.

Why do councils object to self-storage on industrial land?

Because it employs few people for the floorspace it occupies. Local plans that protect employment sites are concerned with job capacity, and a large storage building staffed by a handful of people compares poorly with a light industrial occupier. The answer is site-specific evidence on vacancy, marketing, building suitability and the alternative.

What marketing evidence do councils expect?

How long the unit has been vacant, the quoting rent, the agents instructed, the enquiries received and the reasons those enquiries did not proceed. Generic statements that there is no demand carry little weight. Where the building is physically unsuited to the occupiers the allocation assumed, set out the eaves height, loading and access constraints.

Will a Transport Assessment be needed?

Usually a Transport Statement is proportionate, because self-storage generates low trip numbers relative to floor area and spreads them through the day rather than concentrating them in commuter peaks. Use trip rates from an appropriate TRICS category and check the sample matches the scale and setting of your proposal.

Can I get 24-hour customer access?

It depends on the neighbours. Where the estate adjoins housing, councils commonly condition access hours for the yard and external areas even if the building itself is secure. Raise it at application stage with a clear case on shutter noise, vehicle movements and lighting control, because varying an hours condition later is harder.

Does planning control fire safety in a storage building?

Mostly not. Compartmentation, sprinklers and risk assessment sit under the Building Regulations and the Regulatory Reform (Fire Safety) Order 2005. Planning controls the layout that makes fire service access work: hardstanding able to take an appliance, the approach route and hydrant positions. Resolve those on the site plan early.

Sources and further reading

self storageclass b8employment landcommercial planningtransportlighting

This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.

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