Documents for a crane oversailing neighbouring land

A tower crane swinging over a neighbour's airspace is a trespass question before it is a planning question. You need a written oversail licence from the owner of the land you pass over, and no planning permission will give you that right. What the planning system controls is the construction method: where the crane stands, when lifting happens, how pedestrians and traffic are managed, and whether the height engages an aerodrome or defence safeguarding interest.

So the documents divide cleanly. A private licence negotiated with the adjoining owner, and a construction method statement submitted to the council, usually to discharge a condition rather than as part of the original application.

Whether oversailing is a planning matter at all

Erecting a crane is not normally development requiring permission. Part 4 of Schedule 2 to the General Permitted Development Order 2015 permits buildings, structures, works, plant and machinery required temporarily in connection with building operations being carried out on that land, or on adjoining land, for the duration of those operations.

That covers the crane, the site office, the hoarding and the material storage. It does not cover anything left in place afterwards, and it does not cover a crane used for something other than the permitted operations.

Planning control arrives through conditions. A permission for anything of size usually carries a condition requiring a construction method statement or construction management plan to be approved before works start, and that is where the crane appears. Occasionally the oversail arrangement is also conditioned where the council has a specific interest, such as a listed building or a public space below.

Where the crane itself needs to stand on the highway or on third-party land outside the red line, that is a separate matter again, requiring the landowner's agreement and, on the highway, the highway authority's licence.

The private law licence and why it is separate

Airspace over land belongs to the owner below, to the height needed for ordinary use and enjoyment. A jib passing over a neighbour's roof is a trespass unless they have agreed to it, and an injunction is available to stop it.

An oversail licence is therefore a commercial negotiation, not a consent. It typically covers:

• the period of oversail and the hours of operation
• the maximum load and whether loads may be carried over the land or only the empty jib
• a requirement to leave the crane free to slew in wind outside working hours
• insurance, indemnities and a schedule of condition for the neighbour's property
• a licence fee, and the neighbour's legal and surveyor costs
• access for inspection and a dispute procedure

Start early. Neighbours have no obligation to agree, and the price rises sharply once your programme is public. Where the neighbouring owner is a freeholder with leaseholders, you may need more than one signature, and a managing agent will take time.

The Party Wall etc. Act 1996 is a different regime again, dealing with work to shared structures and excavation near a neighbour's building. It is not a PlanScope report type, and an award under it does not grant oversail rights.

Construction method statement content

For a scheme with a tower crane, the method statement should answer the questions an officer and a highways engineer will ask.

Include a logistics plan drawing showing the crane base, the full slew radius, the hoarding line, the site entrance, the loading bay and the pedestrian route. Then cover:

1. Crane type, height under hook, jib length and the reason for the chosen position.
2. Oversail extent, with a statement that the necessary licences are in place or being obtained.
3. Lifting hours, and any restriction on lifting over occupied areas.
4. Delivery routing, vehicle sizes and the number of daily movements.
5. Wheel washing, dust suppression and noise controls, with reference to the recognised construction noise standard.
6. Emergency procedures, including what happens in high wind and out of hours.
7. The appointed person's responsibilities under the lifting operations regime and the safe use of cranes code of practice.

Much of this overlaps with the Construction Management Plan and the Construction Traffic Management Plan, so decide early which document carries which material and cross-reference rather than repeating.

Health and safety duties under the Construction (Design and Management) Regulations 2015 run alongside planning. The planning condition does not discharge them, and the council is not the enforcing authority for them.

Safeguarding consultation where height is an issue

A crane is a temporary tall obstacle, and in some locations that matters more than the finished building.

Within an aerodrome safeguarded area, the aerodrome operator will want notice of the crane height and position, and may impose lighting or operational conditions. Defence safeguarding applies around military aerodromes and technical sites. Tall temporary structures can also need notification for aeronautical charting, so check the Civil Aviation Authority's current guidance on heights and the notification route.

Aviation safeguarding is not one of the 66 PlanScope report types, so this evidence takes the form of correspondence and, where radar is in issue, a specialist assessment.

Do the check at design stage. Discovering a height restriction after the crane has been specified means a smaller crane, a longer programme or a different lifting strategy, and all three cost money.

Rail, highway and canal proximity

Three asset owners treat crane oversail as a safety matter with their own consent processes.

Where the site adjoins the railway, the infrastructure owner's asset protection team will require an agreement before any crane can slew towards the boundary, usually with exclusion zones, a lifting plan and sometimes possession arrangements. Lead times are measured in months.

Over a canal or river, the waterway authority has its own works consent regime, with similar conditions about loads over water and towpath closures.

Over the highway, the local highway authority controls scaffolding and apparatus placed on or over the highway under the Highways Act 1980, and its licensing practice for crane oversail varies, so ask. Where a footway closure or temporary traffic order is needed, add the statutory notice periods to the programme.

Buried assets matter too, since a crane base is a substantial foundation. A site crossed by infrastructure brings its own constraints, as our note on documents for a site crossed by a public sewer sets out.

Neighbour notification and the complaint risk

There is no statutory requirement to notify neighbours about a crane beyond the oversail licence negotiation. There is a practical one.

A letter before the crane arrives, giving the dates, the working hours, a named contact and a telephone number, prevents most complaints. Complaints that do arrive go to environmental health as statutory nuisance, or to the planning enforcement team as a breach of the construction condition, and both are slower and more expensive to answer than a phone call.

Keep a log of complaints and responses. Where a condition requires compliance with an approved method statement, that log is the evidence that you complied.

What to include so the condition can be discharged

Councils discharge these conditions on paper, so give them a clean submission:

• a single method statement document, dated and version numbered
• the logistics plan drawing with the slew radius shown and dimensions on it
• a schedule of licences and consents, with their status and expected dates
• confirmation of hours sought, matching any hours already conditioned
• the notification letter you intend to send to neighbours
• correspondence with the rail, waterway or highway authority where applicable

Two points save a round of comments. Submit the discharge application well before you need it, because a construction method statement condition is a pre-start condition and starting without approval is a breach. And make the hours in the method statement match the hours in the permission, since a mismatch is the most common reason these submissions come back.

Enter your postcode on PlanScope to see which of the 66 report types your site is likely to need, and keep the oversail licence with your solicitor rather than in the planning file. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it.