17 August 2026
Use Class Flexibility: A Landlord's Lever

Planning use classes were, in theory, a way to ensure some order and sense of place. Retail units, once firmly categorised as Class E, often find themselves under scrutiny when a new tenant comes along. The idea of a broad Class E was to offer flexibility, allowing premises to shift between retail, financial services, offices, or even light industrial without a formal change of use application. This was supposed to make things easier, less bureaucratic, and more responsive to market needs.
However, 'flexibility' can be a double-edged sword. For a landlord, securing a change of use or even demonstrating the potential for such a change can significantly alter the value and marketability of a unit. What might have been a struggling retail pitch suddenly looks more attractive as an office or a dentist's surgery. This potential often gets factored into rent negotiations, even if the actual change never materialises.
Occupiers, meanwhile, often seek this flexibility in their leases. A tenant might want the option to diversify their offering, perhaps adding a small café counter to their retail space, or offering occasional training sessions in a back room. These small shifts in operation can feel minor to the business owner, but they can stray into different use class territories, even within the supposedly broad Class E.
When a unit has been vacant for some time, the conversation inevitably turns to what else it *could* be. A landlord holding out for a new retailer might find that the best offer comes from an operator seeking office space, or perhaps a medical practice. The ability to pivot the unit's purpose becomes crucial in reducing void periods and securing income.
The Realities of Adaptation
Yet, the practicalities of physical adaptation remain. A unit designed for retail, with large display windows and an open sales floor, doesn't always translate efficiently into an office or clinic. Plumbing for toilets and sinks, electrical capacity, even the structural integrity for different fit-outs can add significant costs. These are the expenses that can erode the perceived benefit of a flexible use class.
And it’s not just the physical. Landlords, particularly those with a portfolio of neighbouring retail units, might be wary of introducing too many non-retail uses. The intention is often to maintain a 'retail character' for the street, fearing that a proliferation of offices or services might dilute footfall for their remaining shop tenants. It's a delicate balancing act.
Sometimes, the 'flexibility' is more theoretical than actual. A lease might state Class E but then include restrictive covenants preventing certain uses within that class, such as takeaway food or gambling establishments. This can frustrate a prospective tenant who thought they had found a suitable space, only to discover the finer print effectively limits their options.
So, while the changes to use classes were intended to streamline and assist, in practice they've become another layer in the ongoing negotiation between landlord and tenant. It's a key factor in assessing true market rent and the viable future of many high street properties. The paper flexibility often clashes with the bricks-and-mortar reality, or the commercial strategy of the property owner.
Need advice on a lease renewal, rent review or dilapidations claim? chris@mcgarrigle.com