For open storage, the delivery route is part of the site.

The use was too open to leave its transport effects undefined

The proposal was to change former gas holder land to Class B8 open storage. The appellant described a range of possible activities, from storing construction materials to a logistics yard with a rapid turnover. Inspector R Cahalane dismissed the appeal on 11 September 2026.

The inspector accepted that the former gas works was likely to have generated a notable level of staff and vehicle movements. However, there was no technical evidence quantifying those movements and comparing them with the proposed use. The history of the site did not provide the missing comparison.

At paragraphs 8 and 9, the inspector explained that a suitably prepared transport assessment could establish a robust range of movements, informed by appropriate industry data and consultation with the highway authority. That evidence could also inform specific planning restrictions. The decision does not say that an identified tenant was essential; it says the range of transport effects had not been defined adequately.

The route outside the boundary mattered

There was a sharp turn immediately before the entrance. Without vehicle tracking or equivalent technical detail, the inspector could not be satisfied that larger vehicles could pass without hazardous reversing on the highway.

Parked vehicles also constrained the surrounding residential streets. The inspector identified real safety risks associated with larger vehicle reversing and obstructed visibility. These concerns extended along the route to the site, beyond the access itself.

A suggested condition controlling later changes in storage activity, vehicle profile or operator did not resolve the immediate problem. At paragraph 14, the inspector could not rule out safety risks when the proposed use first began. The appeal was therefore dismissed despite substantial weight being given to its economic benefits.

Define the operating envelope before seeking flexibility

For the client and agent, the commercial question is how much flexibility the permission needs. The transport work should translate that into an assessable range: likely vehicle types, arrival and departure patterns, operating hours and the activities that create the greatest demand. A quiet storage operation and a busy distribution yard should not be treated as interchangeable.

For the planning and transport consultants, agree the baseline evidence and the proposed limits together. An earlier use may be relevant, but its movements need to be supported and its planning status understood. The notice did not establish an unrestricted traffic allowance from the former gas works.

For the designer, test the delivery journey through the constrained points as well as the internal yard. Select vehicles that represent the proposed operation and allow for the parking conditions that affect the route. Record any dependence on traffic management or works outside the owner’s control.

Conditions can give a scheme useful flexibility when the evidence shows a safe operating envelope. The work before submission is to establish that envelope clearly enough for the decision maker to understand what is being permitted.