CM4 - Bathymetry & Topographic Surveys Bishop Rock and Longships Lighthouses

Trinity House
South West
Invited to quote
10 October 2026 to 30 November 2026

Bathymetry and topographic surveys at two lighthouse sites: Bishop Rock and Longships. The notice does not specify survey methods, coverage areas, deliverables, or technical accuracy requirements.

Open the official notice

Awarded value: £47k; As published
Published: 9 October 2026
Awarded: 9 October 2026; Castle Surveys Ltd
Contract length: 2 months; Ends 30 November 2026

What the contract covers

Service contract

Provision of bathymetric and topographic surveying services for lighthouse and coastal infrastructure sites.

Bathymetry & Topographic Surveys for two of our Lighthouses - Bishop Rock and Longships Lighthouses

Terms and requirements

Contract type: Service contract
Procedure: Invited to quote
Initial term: 2 months
Contract dates: 10 October 2026 to 30 November 2026
Certifications asked for: None stated
Lots: 1
Suitable for SMEs: Not stated
CPV codes: 71351810

Services in this contract

Hydrographic and bathymetric surveysMain service£75k typicalBathymetry surveys at two lighthouses
Topographical, measured, utility and aerial surveys£43k typicalTopographic surveys at the two lighthouses

Lifecycle

Published
9 October 2026
Contract awardedto Castle Surveys Ltd
9 October 2026
Contract starts
10 October 2026
Contract ends
30 November 2026

The buyer

Trinity House

Type: Locked
Contracts, 24 months: Locked
Recorded value: Locked
Typical contract: Locked
Bathymetric survey contracts, 24 months: Locked
Open bathymetric survey tenders: Locked

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Contact details

Name: Locked
Email: Locked
Phone: Locked
Address: Locked

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The supplier

Castle Surveys Ltd

Contracts won, 24 months: Locked
Value won, 24 months: Locked
Buyers, 24 months: Locked
Size: Locked
Companies House number: Locked

Main buyers

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Similar bathymetric survey contracts and prices

3 bathymetric survey contracts were awarded in the South West in the last 24 months. See who won them and what they went for, next to this one.

See who won them →

Cite this contract

Link: https://bidskim.com/tender/3876349/cm4-bathymetry-and-topographic-surveys-bishop-rock-and-longships-lighthouses
Buyer reference: Not published
Open contracting ID: ocds-h6vhtk-078527
Last checked: 5 November 2026

Trinity House. CM4 - Bathymetry & Topographic Surveys Bishop Rock and Longships Lighthouses. Contract award, 9 October 2026. BidSkim, https://bidskim.com/tender/3876349/cm4-bathymetry-and-topographic-surveys-bishop-rock-and-longships-lighthouses (accessed 5 November 2026).