Planning permission for a last-mile logistics depot

Last mile logistics planning permission turns on two things that a conventional warehouse application barely touches: the van trip profile, which concentrates dozens of departures into an hour before most people are awake, and the electrical capacity to charge a fleet overnight. Get the transport evidence and the power supply right and the rest of the application is ordinary industrial planning. Get either wrong and the scheme either fails at committee or cannot operate once built.

A parcel depot is a Class B8 storage or distribution use. The difficulty is that almost nothing else about it resembles the regional distribution sheds that Class B8 policy was written around.

Use class and employment policy for urban logistics

Class B8 covers storage or distribution, and a sortation depot with a van fleet sits squarely within it. Where the operation includes substantial vehicle maintenance, or a trade counter, the description of development needs to say so, because a mixed or sui generis element changes what the permission allows.

Policy is generally supportive. National policy asks authorities to plan positively for storage and distribution operations at a variety of scales and in suitably accessible locations, and recognises the needs of business. In London, the industrial land policies in the London Plan protect industrial floorspace, resist net loss, and encourage intensification and co-location, which makes an urban depot on an existing industrial site a policy-compliant proposition in a way that a residential scheme on the same land is not.

Two arguments are worth making explicitly. That the depot serves the local area and reduces vehicle kilometres compared with delivery from a site further out. And that the use is a poor fit for any other site, because last mile depots have to be inside the delivery area to work.

Van movements, dwell time and the transport evidence

Standard trip rate databases hold little useful data for parcel depots, and floorspace-based trip rates are actively misleading, because a depot's activity relates to the number of vans and the parcel throughput rather than to its area.

Build the evidence from operator data:

1. Fleet size and the departure profile, typically a concentrated block of departures in the early morning with returns spread across the afternoon and evening.
2. Dwell time per van, which determines how many parking spaces are needed at once and whether vans return mid-shift for a second load.
3. Trunking deliveries, usually articulated vehicles arriving overnight, with the number of movements and their timing.
4. Staff arrivals by shift, including the shift that starts before public transport runs.
5. The assignment of van trips onto the local network, which is the point objectors focus on, and which should reflect the actual delivery geography rather than an even spread.

A Transport Assessment on this basis is far more persuasive than one built from trip rates, and it is also the document that supports the conditions you want, such as a defined maximum fleet size rather than a floorspace cap.

Where shift patterns fall outside bus hours, expect the highway authority to press on staff travel. Practical answers are a shift minibus, a car share scheme with allocated bays, secure cycle parking with showers, and charging for staff vehicles. The same pattern of early shifts and fleet parking arises for other vehicle-based operations, as set out in a taxi or private hire operating base.

Electrical capacity for a van fleet

This is the constraint that decides deliverability, and it is usually discovered late.

Overnight charging for a fleet of electric vans needs a connection sized for the number of vehicles, the charger rating and the charging window. A depot charging dozens of vans on 7 kW units overnight, with a handful of faster units for mid-shift top-ups, needs a supply well beyond what a comparable warehouse required, and the distribution network operator's connection timescale can exceed the construction programme.

What to establish before exchange:

• The available capacity at the nearest point of connection, from a formal enquiry rather than a desk assumption.
• The reinforcement works required, their cost and their lead time.
• Whether a flexible connection agreement, on-site battery storage or staged charging can reduce the peak demand and therefore the connection size.
• The substation footprint and its position, because it needs a location with vehicle access that does not compromise the yard.

A Utilities Assessment setting out capacity, the connection route and the phasing is worth preparing early, and the same document supports the air quality case for fleet electrification.

Noise from early morning sorting and loading

Six o'clock is the number that matters. Sorting, cage movements over a concrete floor, roller shutter doors, reversing alarms and van engines all occur at a time when the background level is at its lowest and residential windows are open in summer.

A Noise Impact Assessment should assess the operation under BS 4142:2014+A1:2019, with acoustic feature corrections for the impulsive character of cage and shutter noise, against a background measured at the same early hour rather than an averaged night level. Event-based maximum levels matter as much as the rating level, because a single shutter at 05:30 is what prompts the complaint.

Mitigation that works: internal sortation with doors closed, sealed dock levellers, broadband reversing alarms in place of tonal ones, resilient surfaces or wheeled cages with soft tyres, acoustic barriers along the yard boundary, and a yard layout that puts manoeuvring away from the nearest houses. Hours conditions on shutter operation are common and are easier to accept when designed for than when imposed.

Servicing yard depth and vehicle tracking

Yard geometry is where drawings fail. A rear-loading dock serving 16.5 metre articulated vehicles generally needs a yard depth of the order of 32 to 35 metres to allow a vehicle to turn and reverse onto the dock without using the public highway, and the figure has to be confirmed by swept path analysis rather than assumed.

The layout also has to accommodate van parking at full fleet, staff parking, cycle parking, the charging infrastructure with its bollards and cable routes, refuse storage, and a segregated pedestrian route from the car park to the building that does not cross the reversing area. On a constrained urban plot those demands compete, and the honest answer is sometimes a smaller fleet than the operator wanted.

Show the yard working at the busiest moment: trunking vehicle on the dock, vans parked, staff cars in, and a refuse vehicle arriving.

Air quality and the fleet commitment

Inside an Air Quality Management Area, or next to housing, the air quality case rests on the fleet. A commitment to an electric or predominantly electric van fleet is the strongest mitigation available, and it needs securing rather than stating.

The mechanisms used are a condition requiring the charging infrastructure to be installed and retained before first use, a condition or obligation limiting the proportion of non-electric vehicles operating from the site, and a monitored travel plan. Construction dust is assessed with the standard qualitative method and secured through the construction management plan.

Yard drainage needs a Drainage Strategy with attenuation for the large impermeable area, an oil interceptor on the yard outfall, and pollution prevention measures for the charging and any refuelling area.

Illustrative example

A depot of about 2,800 square metres on an existing industrial estate operates a fleet of 40 electric vans across two delivery waves, with two trunking arrivals between 23:00 and 04:00. Departures concentrate between 06:30 and 07:30. The transport case is built from operator fleet data rather than floorspace, the noise assessment uses a background measured at 05:00, and charging is designed as overnight 7 kW units with a staged load profile to reduce the connection size. The figures are illustrative and every depot turns on its own operator data.

Documents to submit for an urban depot

Expect a Planning Statement and Design and Access Statement, a transport assessment with swept paths and the van trip profile, a delivery and servicing plan, a staff travel plan, a noise assessment covering early morning operations and plant, an air quality assessment with the fleet commitment, a drainage strategy with the yard outfall detail, a utilities and connection capacity note, a lighting assessment for the yard, an ecology appraisal with the biodiversity metric, a construction management plan, and a contaminated land assessment where the site has an industrial history.

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, and for acoustic, transport, contamination and drainage work qualified professional input may be required.

Browse the 66 report types to see which documents a last mile depot is likely to need.