Industrial property planning and compliance explained

Industrial property planning and compliance is the body of rules that decides what a unit may lawfully be used for, what works can be done to it, how energy efficient it must be to let, what it costs to occupy and how the relationship between landlord and tenant is governed. None of it is glamorous, and most of it is invisible from the road, but it is the part of an industrial asset that cannot be rebuilt with a contractor: the steel, cladding and concrete are the easy bit, while the planning consent, the EPC, the rateable value and the lease are where deals are won, lost and repriced.

This pillar guide ties the strands together. It covers planning permission and permitted development for industrial buildings, the use classes that frame everything, change of use, the EPC and MEES regime, business rates, and the lease structures and dilapidations rules that decide who pays for what. Each topic has its own detailed spoke in this cluster, linked as we go. We arrange commercial mortgages and development finance on industrial property as a broker and introducer; we are not a lender, and we are not lawyers, surveyors or planning consultants. Treat everything here as general information and take regulated professional advice on anything that matters to a specific building.

Do you need planning permission for industrial units?

Whether you need planning permission depends on what you are doing. Building a new industrial unit almost always needs a full planning application. Extending or altering an existing one may be covered by permitted development rights, within limits, or may need permission. Changing what a unit is used for needs permission where the change is material and no permitted development right applies. And simply occupying a unit for a use already within its lawful class needs nothing at all. The single most useful question is therefore not whether industrial buildings need permission in the abstract, but which of those four situations you are in.

For new buildings and extensions, the General Permitted Development Order grants industrial and warehouse premises some rights to extend or alter without a full application, subject to floorspace percentages, height limits, proximity to boundaries and the absence of an Article 4 direction removing the right. These rights are narrower than many owners assume and are frequently restricted on planned employment estates. A material extension, a new building, or anything touching highways, drainage or neighbour amenity will usually need a full application decided against the local development plan.

Use change is the area that catches buyers out, because the value of a deal often rests on a use the building does not yet have. That is covered in depth in our guide to change of use for commercial property, and the classes themselves in our guide to industrial planning use classes. The rest of this section sets out how those pieces connect to value and finance.

How do use classes shape an industrial deal?

Use classes are the planning categories that define what a building may be used for. In England every industrial unit, warehouse and yard sits somewhere in the Town and Country Planning (Use Classes) Order 1987 as amended, and the letters that follow a unit, B2, B8, E(g), sui generis, decide which occupiers can move in without an application, what the unit is worth, and how lenders treat it as security. Scotland and Wales run their own versions of the system with material differences, so always check the right regime for the property.

The three industrial homes are B2 general industrial, B8 storage and distribution, and E(g)(iii) light industrial, the last being the modern home of the old B1(c) class after the September 2020 reforms abolished B1 and folded its contents into the broad commercial Class E. Each carries a different pool of lawful occupiers, and through that pool a different rental market and value. Our spoke on the B8 use class goes into the storage and distribution category in detail, and the existing use classes guide covers the full picture.

The practical point for a buyer or borrower is that use class is a price and finance variable, not a legal formality. Clean, broad, unconditioned B8 or E(g) use is worth paying for because it borrows and sells better; a doubtful or narrowly conditioned use needs the doubt priced in and the finance structured to match, which often means shorter-term debt while the position is regularised.

What compliance obligations come with an industrial property?

Beyond planning, an industrial property carries a stack of ongoing compliance obligations that bear directly on value and lettability. The headline one in recent years is energy performance: under the Minimum Energy Efficiency Standards, the current minimum rating to let commercial property has been EPC band E since April 2023, and a unit below that generally cannot be lawfully let without an exemption. We cover the detail, including the proposed future trajectory which is not yet settled law, in our guide to EPC and MEES for commercial property.

Then come the occupational obligations: business rates, payable by the occupier on the rateable value; fire safety and the duties under the Regulatory Reform (Fire Safety) Order; asbestos management duties on older stock; electrical and gas safety; and the repairing and statutory compliance obligations the lease allocates between landlord and tenant. On an industrial estate, the service charge typically funds common-parts compliance, and a buyer should understand the shortfall risk on any vacant space.

Compliance failures rarely stop a building working overnight, but they erode value quietly and surface at exactly the wrong moment: on a sale, a refinance or a lease event. A unit that cannot be lawfully let until upgrade works are done is worth less than its rent roll implies, which is why energy performance in particular has moved from a nice-to-have to a pricing input that the keenest industrial property yields already reflect.

How do lease terms and dilapidations affect value?

The lease is where the economics of an occupied building actually live. In the UK industrial market most leases are granted on full repairing and insuring terms, an FRI lease, under which the tenant carries the repairing and insuring cost so the landlord receives a rent clear of those outgoings. The structure is central to how investment value is calculated, and we explain it, and the IRI alternative, in our guide to the FRI lease.

The flip side of a repairing obligation is dilapidations: the landlord's claim at or near lease end for the tenant's failure to keep the unit in the contracted state of repair. A well-advised investor models the dilapidations position on acquisition, because a building handed back below its repairing standard carries a hidden capital cost, while a robust dilapidations recovery can fund the very works that re-let it. Our guide to dilapidations in commercial property sets out the process and the protocol.

For lenders, the lease is read as hard as the building. Length of certain income, repairing obligation, break clauses, rent review structure and tenant covenant all feed the loan, because debt is advanced against income actually collectable, not against the building in the abstract. A short lease to a weak covenant on internal repairing terms supports far less debt than a long FRI lease to a strong one over the identical unit.

How does planning risk get financed?

The recurring financing problem in this cluster is that value often depends on a planning or compliance position that does not yet exist: a change of use not yet consented, an EPC not yet upgraded, a lease not yet regeared. Term lenders advance against the position as it stands, not the hoped-for one, so the gap is usually bridged with shorter-term money and then refinanced once the value has been crystallised.

1. Acquire at current-use value

   Buy the asset on what its existing lawful use and condition support, usually with bridging finance, which lends against the building as it is rather than as it could be.

2. Carry out the works or secure the consent

   Obtain the change of use, complete the EPC upgrade, or regear the lease. This is where the planning and compliance risk sits, and it belongs to the borrower and their professional advisers.

3. Refinance onto term debt

   Once the consent is granted or the works are signed off, the higher value supports a commercial mortgage, and the bridge is repaid from the new facility.

As a deliberately simplified illustration, a tired B2 unit bought at current value on a twelve month bridge, achieving B8 consent and an EPC upgrade in month nine, can then refinance onto a term loan against the higher consented and compliant value. Figures and timelines are illustrative; the planning risk in the middle is real. We arrange both ends of that structure regularly: see our bridging finance and commercial mortgage pages, and our development finance page where the works amount to a build rather than a refit.

How do you check the planning and compliance position before you buy?

Due diligence on planning and compliance runs alongside title, and the discipline is the same as buying any industrial unit: verify, do not assume. Our guide to how to buy an industrial unit sets out the wider process; the planning and compliance checks within it are summarised here.

Each of these items has its own spoke in this cluster, and each can move the price or the financeability of a deal. The cost of checking is trivial against the cost of getting it wrong, and lenders' solicitors will raise most of these enquiries anyway, so answering them in advance speeds up the whole transaction. None of this is a substitute for advice from a planning consultant, surveyor or solicitor on the specific building.