Construction management plan conditions and their cost

Construction management plan cost is almost never the cost of writing the plan. It is the cost of doing what the plan says for the next 18 months. A document that takes a consultant two days to draft can commit a contractor to a wheel wash, a banksman on the gate, weekly dust monitoring, quarterly reports, a hoarding licence charged by the metre and a working day that starts two hours later than it otherwise would.

Which is why the plan should be written before the contract is let, not after.

What the plan has to cover

The scope is broadly consistent across authorities, even where the condition wording is not. A Construction Management Plan normally addresses site set up and hoarding, the construction access and routing, wheel cleaning and dust control, hours of working, delivery and collection management, parking for operatives, waste handling, noise and vibration control, protection of retained trees and habitats, community liaison, and monitoring with reporting arrangements.

On larger schemes the traffic content is separated into a Construction Traffic Management Plan, and waste into a site waste plan. Where the condition asks for all of it in one document, the practical risk is that approval of the whole is held up by a disagreement about one part.

Read the condition carefully for what it actually requires to be approved before work starts, because that is the part on the critical path.

Where the money actually goes

The recurring items, in rough order of how often they are underestimated:

• Wheel cleaning. A drive through wheel wash has a capital or hire cost, a water supply, power, and a silt trap that has to be emptied and the arisings disposed of as controlled waste. A pressure washer and a man costs less to install and more to run.
• Hoarding. The hoarding itself, the licence from the highway authority charged for the duration, lighting where it obstructs a footway, graffiti removal, and reinstatement.
• Dust suppression. Water bowsers, damping down, sheeting, and on a demolition a fine water mist system with its own supply.
• Traffic management on the gate. Where reversing from the highway has to be avoided, a banksman is a full time position for the life of the works.
• Operative parking. Where the plan prohibits parking on surrounding streets, you are paying for a compound space or off site parking with a shuttle.
• Community liaison. A named contact, a newsletter or website, letters before noisy phases, and time responding to complaints.
• Waste segregation. Skips by stream, haulage and disposal, and the records to prove it, which the note on a Site Waste Management Plan covers in more detail.

None of these individually looks large. Together, on a two year build next to housing, they are a meaningful line in the preliminaries.

Highway licences the plan commits you to

A construction management plan that shows a hoarding, a scaffold and a crane has committed you to three separate consents, each with its own fee, duration charge and conditions.

Hoardings in or adjacent to the highway need a licence from the highway authority, usually charged by length and period. Scaffolding over a footway needs a separate licence, again time charged. Depositing materials or excavating in the street needs its own authorisation. Footway or lane closures, parking bay suspensions and loading restrictions each need a traffic order or a suspension, arranged with notice.

A tower crane that oversails adjoining land is a different animal. There is no licence for it, because the right to oversail is a private matter with the adjoining owner, and a neighbour who realises the jib crosses their airspace at the wrong moment has a strong negotiating position.

Where highway works are being carried out as part of the permission, some of this can be folded into the same agreement, and the note on how section 278 highway works costs are built up explains how those costs are assembled.

Monitoring and reporting

Monitoring is the item most often written into a plan by a consultant and priced by nobody.

Dust monitoring can mean deposition gauges read monthly, directional dust gauges, or continuous particulate monitors with a data feed and alarm levels. The first is inexpensive. The last carries equipment hire, calibration, power, data management and somebody to respond when a trigger is breached.

Noise and vibration monitoring works the same way, and on a site adjacent to a sensitive receptor a continuous monitor with text alerts is now common. Arboricultural monitoring means site visits by the arboriculturist at stated stages with written reports. An ecological watching brief means a licensed or qualified ecologist attending specified operations, at a day rate, with attendance that may be at short notice.

Then there is the reporting. Quarterly compliance reports to the authority, records of complaints and responses, waste transfer documentation, and evidence for each discharge of conditions application. Discharge applications themselves carry a fixed statutory fee per request, indexed annually, so check the current schedule and count how many separate requests the conditions will generate.

Working hours and the programme

Hours restrictions are the condition with the largest hidden cost, because they reduce productive time rather than adding a line item.

A typical residential area condition permits work from 08:00 to 18:00 on weekdays, 08:00 to 13:00 on Saturdays and nothing on Sundays or bank holidays. That looks generous until you account for the fact that plant cannot be started before the permitted hour, which pushes the first pour, the first lift and the first delivery later, and that a concrete pour which has to finish inside the window sometimes cannot be started at all.

Where out of hours work is unavoidable, prior consent under section 61 of the Control of Pollution Act 1974 is the route for agreeing methods and noise limits with the environmental health team. It does not override the planning condition, so the hours condition itself has to be worded to allow agreed exceptions, and that wording is worth negotiating at application stage.

Negotiating the condition before it is imposed

There is a statutory brake on conditions that bite before work starts. Under the Town and Country Planning Act 1990 an authority cannot impose a condition requiring something to be done before work starts without the applicant's written agreement, subject to the prescribed exceptions and procedure. That gives you a conversation you would otherwise not have.

Use it for three things. Move items off that list where they can properly be discharged later, for example a phase two compound layout. Split the plan so that the parts you need approved first are separable from the parts still being designed. And challenge monitoring requirements that are disproportionate to the site, because a continuous noise monitor on a rural site with the nearest receptor 200 metres away is hard for an authority to justify.

Ask for a wording that allows minor variations to be notified rather than formally approved. Sites change, and every formal variation is another application, another fee and another eight week wait.

Preparing the plan before appointment

The sequence that saves money is to draft the plan during the application, with the constraints identified, and then hand it to tendering contractors as part of the information they price. A contractor who prices a wheel wash, a banksman and a 08:00 start has priced the job you will actually build. A contractor who prices a clean site and then meets the condition afterwards will be back with a variation.

One honest caveat. Authorities vary in how they enforce these plans, and some conditions are never checked. Budgeting on that basis is a poor bet, because the sites that get checked are the ones where a neighbour complains, and you cannot pick those in advance.

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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.