Bathymetry & Topographic Surveys - Smalls, Eddystone and Les Hanois Lighthouses

Value: £90k
Closes: 13 Nov 2026 (5 days)
Where: UK-wide
Lots: 1
Suitable for SMEs: Yes, says the buyer
Contract: 27 Nov 2026 – 31 Mar 2027

In plain English

Trinity House wants bathymetric (seabed depth) and topographic (land and rock) surveys around three rock-tower lighthouses: the Smalls, Eddystone and Les Hanois. The work runs from 27 November 2026 to 31 March 2027, with an estimated value of £90,000.

Good fit for: Marine or hydrographic survey firms able to work at remote offshore rock locations.

The catch (with the notice's own words):

May be split between several suppliers, so price each site separately suppliers are requested to submit individual costs for each location.
Tight deadline: all surveys finished by end of March 2027 In order to ensure successful completion of all survey by the end of March 2027

Written with AI from the official notice. Check the notice before relying on it.

What the buyer says

Trinity House (TH) holds the operation and maintenance responsibility for over 60 lighthouses around England, Wales, the Channel Islands and Gibraltar. These critical aids-to-navigation (AtoNs) include several Rock Tower lighthouses that require regular modernisation and ongoing maintenance. Accordingly, Trinity House would like to investigate the feasibility of utilising jack-up and floating assets to avoid repeated journeys to these remote locations by helicopter to mobilise personnel, equipment and tools. To support this investigation, it is important to have accurate bathymetric and topographic surveys of the surrounding area. In order to ensure successful completion of all survey by the end of March 2027, Trinity House reserve the right to appoint a singular or multiple suppliers to fulfil this requirement. As a result, suppliers are requested to submit individual costs for each location.

Read the official notice

Getting the documents

The notice doesn't say where the documents are. Ask the buyer at etender@trinityhouse.co.uk, or read the official notice for how to take part.

Procedure: Below threshold - open competition (Open: anyone can bid (a lower-value contract with lighter rules)). Published 23 Oct 2026.

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