
Swing clearance survey
We measure sag and swing at maximum temperature and show the statutory clearances so you can meet ESQCR.

Overhead power lines are what we specialise in. We survey them and we design them, and we're not limited to that — topographic surveys, underground utilities, setting out and other site work sit alongside it. We're authorised by the CAA to fly drones, so we can survey from the air when that's the better way to do the job. Since 2010 that work has added up to a long run of successful projects. We're a small team, so you talk to the people who will actually be on site. Tell us what the job needs and we'll work out the right survey and design for it.

We measure sag and swing at maximum temperature and show the statutory clearances so you can meet ESQCR.

CAA-authorised drone surveys for mapping and inspection, with models ready when the air is the safer way to work.

Accurate scans of lines, structures, and sites, delivered as point clouds you can measure and check for clashes.

Route plans, profiles, and schedules for UK overhead lines, on the Ordnance Survey grid so every drawing matches.

Site surveys for power line and development schemes, with maps, contours, and a terrain model your planners and designers can build on.

We transfer the design onto site and mark foundations, supports, and structures so construction starts in the right place.

We locate and mark buried utilities before excavation, and report what was found so you can dig with fewer strikes and less delay.

CAD drawings for survey and overhead line projects, produced in AutoCAD and issued with a clear revision history.

Overhead line design for network operators and developers, covering supports, conductors, and the drawings needed to build the line.
Line Design Technology Limited has an experienced team of professionals who have the necessary skills to deliver detailed and exact topographical surveys.
As well as conducting overhead line surveys, Line Design Technology Limited staff are also skilled in the production of engineering design solutions to your technical requirements.
In addition to a range of design and surveying work. We can provide independent expertise to those working within the electrical industry.
Accreditations
Certifications and approvals that underpin how we work with utilities, developers, and contractors.

We take pride in being Constructionline certified, which demonstrates our adherence to high industry standards. This certification reassures clients that they are partnering with a reliable team dedicated to industry regulations and providing exceptional services.

We are pleased to let you know that we follow the internationally recognized ISO 9001:2015 quality standard to ensure your full satisfaction. We see this standard as the foundation for our growth and are committed to delivering consistently excellent service.

The Civil Aviation Authority (CAA) of the United Kingdom serves as the regulatory authority responsible for overseeing the management of the nation's airspace. Its mandate includes supervising the operation of unmanned aircraft, commonly referred to as drones.
Industries
From nationally significant infrastructure to developer-led schemes and renewables—we align our work to your programme and compliance needs.

Our company works with many of the UK’s DNOs on a repeat basis—from nationally significant infrastructure at 132kV to smaller schemes at lower voltages.

We work directly with commercial developers on large-scale projects that need timely information for planning applications and to discharge ESQCR responsibilities.

Professional survey and design services for renewable infrastructure development—high-quality results with solutions tailored to programme and budget.
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We are the experts.