Crane Oversail Licences: An Essential Guide

Construction projects in built-up areas often require cranes to oversail neighbouring land due to limited space on-site. In these situations, it is often necessary for a tower crane or mobile crane to pass over neighbouring land in order to carry out the works safely and efficiently. You cannot oversail without the adjoining owner’s consent, which is usually formalized through a crane oversailing license.

Understanding the process and addressing it at an early stage is essential. Failing to secure the correct agreement can delay a project and create unnecessary conflict with neighbouring owners.

Why You Need a Crane Oversailing Licence?

You need a crane oversailing license whenever your crane or its load passes over land owned by someone else. Even though there may be no physical contact with the neighbouring property, the act of oversailing still affects their airspace and their legal rights.

Proceeding without consent can result in an injunction that stops the works. This can have significant implications for the programme and the overall cost of the project. Securing the licencein advance ensures that the operation can proceed lawfully and without interruption.

What the Licence Allows

The licence sets out the terms under which oversailing can take place. This will normally include the duration of the agreement, the hours during which the crane can operate and the extent of the airspace that will be affected.

It also addresses practical considerations such as access arrangements if required, the provision of method statements and details of the crane operation. These measures ensure the adjoining owner understands the proposed work and that construction is carried out safely. These measures are intended to ensure that the adjoining owner understands what is proposed and that the works are carried out safely.

Insurance and Indemnity Requirements

One of the key components of a crane oversailing licence is the requirement for appropriate insurance. The adjoining owner expects confirmation that the crane operation carries proper insurance and protects them against damage or injury. The adjoining owner will expect confirmation that the crane operation is properly insured and that they are protected in the event of damage or injury.

The licence will usually include an indemnity in favour of the adjoining owner. This provides reassurance that any loss arising from the oversailing operation will be covered. Without these provisions, it is unlikely that consent will be granted.

Surveyor Involvement and Condition Records

In many cases, the adjoining owner will appoint a surveyor to act on their behalf. The surveyors role is to review the proposals, ensure that the terms of the licence are reasonable and, where necessary, record the condition of the neighbouring property before the crane operation begins.

A schedule of condition clearly records the site’s state, allowing you to address any alleged damage quickly and fairly while protecting both parties.

Programme Implications and Early Engagement

Negotiating a crane oversailing licence takes time. You must contact the adjoining owner, agree on terms, and complete legal documentation. Delaying this process until the crane arrives on site can significantly slow the project.

Early engagement allows the necessary discussions to take place without pressure. It also demonstrates a professional approach and helps maintain a positive relationship with neighbouringowners.

A Managed Process for Successful Projects

Crane oversailing is often essential to the successful delivery of a project, particularly in constrained locations. With the correct agreements in place, it can be carried out safely and without dispute.

By addressing the requirement at an early stage, providing clear information and ensuring that appropriate insurance and professional advice are in place, the process can be managed efficiently and the construction programme protected.

For more expert advice on surveying and property matters, check out our range of informative videos on our website or YouTube channel. Harrison Clarke Chartered Surveyors is here to guide you every step of the way!

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Faye

About the author

Faye Williams,
BSc (Hons) MSc MFPWS MRICS

Director & Winner of Young Property Person of the Year 2023

Faye joined Harrison Clarke in 2018 as Tim’s assistant surveyor, quickly establishing herself as a core part of the team. From the early days working at Tim’s kitchen table to moving into the company’s second office, Faye has been pivotal in developing a client-focused and personal approach that defines Harrison Clarke. In 2022, Faye became a Member of the Faculty of Party Wall Surveyors, bringing a relationship-focused approach to party wall instructions that has saved clients thousands in unnecessary fees. This expertise earned her the South Coast Property Awards’ Young Property Person of the Year in 2023.

After completing her Master’s in Building Surveying at UCEM, Faye was nominated for the Academic Excellence Award in 2024 for her dissertation on the Party Wall etc. Act 1996. That same year, she became a Chartered Building Surveyor and was appointed as Director of Harrison Clarke.