Section 278 works: what you are actually signing up to

Most developers meet Section 278 for the first time as a line in a planning consent. The consent says the access must be built to the highway authority’s satisfaction, someone mentions an agreement, and the assumption is that it is paperwork. It is not paperwork. A Section 278 agreement is a contract with the highway authority that governs how you alter their asset, what you pay for the privilege, and how long you stay on the hook after the work is finished.

Here is what the agreement actually commits you to, in the order the costs land.

What Section 278 covers, and what it does not

Section 278 of the Highways Act 1980 lets a highway authority enter into an agreement for works to the existing public highway where someone other than the authority is paying. New access junctions, ghost island right turns, footway widening, signal alterations, crossings, drainage connections into the highway drain. If you are touching adopted highway, it is a 278.

New roads inside a development that you want the council to adopt later are a different animal. That is Section 38, with its own agreement, its own bond and its own maintenance period. Plenty of schemes need both, and they are usually negotiated at the same time by the same team. Confusing the two is how programmes slip, because a 38 can often run in parallel with your build while a 278 frequently cannot start until traffic management is agreed and a road space booking exists.

Section 106 is different again. That is the planning obligation that may fund a highway contribution. It does not permit you to touch the road.

The four costs, not one

The construction cost is the number everyone plans around. It is rarely the number that causes the argument.

Technical approval and checking fees. The authority checks your design, and you pay for that check. Expect a percentage of the works value, and expect the check to come back with comments. Structures, retaining walls above a threshold height and anything carrying highway loading route through a separate approval in principle process with its own timeline.

Supervision fees. The authority inspects the works while they are being built, and you pay for the inspector. This is a per visit or percentage cost written into the agreement.

The bond. You provide a bond or cash surety covering the cost of the authority completing the work if you do not. It is released after the maintenance period, not at completion.

Commuted sums. If your scheme leaves the authority with anything more expensive to maintain than what was there before, they will ask for a capital sum to cover the difference in perpetuity. Signal installations, block paving, planted verges, non standard street lighting and structures all attract them. This is the cost that surprises people most, because it is not a construction cost at all and it does not appear on any contractor’s price.

What the specification actually is

Highway authorities in West Yorkshire specify to the Manual of Contract Documents for Highway Works, usually with a local addendum. That means Series 500 for drainage and ducting, Series 700 for the bituminous pavement, Series 1100 for kerbs, footways and paved areas, Series 1200 for signs and markings, Series 1300 for lighting columns.

Two practical consequences follow from that.

The first is materials traceability. Delivery tickets, mix designs, aggregate declarations and compaction records are part of the deliverable, not an afterthought. An inspector who cannot see the paperwork for a layer will ask for a core, and a core is always more expensive than a ticket.

The second is that the pavement construction is dictated by the road’s design traffic, not by what looks reasonable. A bell mouth off a distributor road will be a thicker construction than the estate road behind it. Pricing the whole access at estate road thickness is one of the most common early errors we see on tender drawings.

The four things that hold 278 schemes up

Statutory undertakers. Diversions of gas, water, electricity and telecoms sit on the utility’s programme, not yours. C3 and C4 quotations take weeks, and the works themselves are booked in months out. Start the diversion enquiries when the design is at a stage where the plant conflicts are known, not when the agreement is signed.

Road space and traffic management. Under the permit schemes operated across West Yorkshire you apply for road space, and the authority can refuse a date or attach conditions on hours, lane availability and seasonal embargoes. Town centre and radial routes carry restrictions through the retail period and around events. A signalised junction alteration wanting a full closure in the first week of December is not going to be granted.

Design changes after approval. Once technical approval is granted, a change is a re-submission. Late decisions about kerb lines, crossing positions or tree pits reset a checking cycle that took weeks.

Drainage that was never resolved. Highway drainage is frequently left as a detail to be developed. If the outfall is a highway drain the authority will want capacity evidence. If it is a watercourse there is an ordinary watercourse consent from the lead local flood authority. If it is a public sewer there is a Section 106 connection application to the water company, and no, that is not the same Section 106 as the planning one.

How to compress the programme

The schemes that run to time do three things early.

They get the utility searches and diversion enquiries out at concept stage, so the plant is known before the layout is fixed rather than after.

They agree the traffic management principle with the authority before the detailed design is finished, because the sequence of construction shapes the design. A junction that has to stay live in both directions is built differently from one that can be closed for a weekend.

They price the commuted sums into the appraisal at the start, so nobody discovers a five figure maintenance sum when the agreement is sitting with solicitors.

Where we come in

We build Section 278 and Section 38 schemes across West Yorkshire for developers, principal contractors and local authorities, and we are on adopted highway most weeks of the year. That means we hold the accreditations, the traffic management capability and the working relationships with the authorities that make the approval side move rather than stall.

If you have a consent with a highways condition attached and you want a straight view on cost, programme and what the authority is likely to ask for, send us the drawings. We will tell you what we think it takes, including the parts that are not construction.