---
ocid: "ocds-h6vhtk-078527"
title: "CM4 - Bathymetry & Topographic Surveys Bishop Rock and Longships Lighthouses"
url: "https://tenderline.uk/tenders/cm4-bathymetry-topographic-surveys-bishop-rock-and-longships-lighthouses-ocds-h6vhtk-078527"
status: "complete"
stage: "compiled"
submissions_open: false
deadline: null
days_to_deadline: null
value_amount: null
value_currency: null
value_basis: "estimate"
notice_type: "UK7"
buyer_name: "Trinity House"
buyer_id: "GB-PPON-PXWM-8968-LPJY"
cpv: ["71351810"]
delivery_location: null
lots: 1
awards: 1
contracts: 1
framework: false
dynamic_purchasing_system: false
suitable_for_smes: false
legal_basis: "UKPGA 2023/54"
source_updated: "2026-10-09T15:58:28.000Z"
generated: "2026-10-13T19:54:23.641Z"
machine_api: "https://tenderline.uk/api/public/tenders/ocds-h6vhtk-078527"
---

# CM4 - Bathymetry & Topographic Surveys Bishop Rock and Longships Lighthouses

Source: [Tenderline](https://tenderline.uk/tenders/cm4-bathymetry-topographic-surveys-bishop-rock-and-longships-lighthouses-ocds-h6vhtk-078527) — UK public procurement intelligence compiled from official Find a Tender notices.

> **Tenderline Executive Summary:** Trinity House: "CM4 - Bathymetry & Topographic Surveys Bishop Rock and Longships Lighthouses". Published status: complete. Published Value: Value not published. 1 published lot. Submission deadline not published. See the official notice for participation instructions.

## Key Information
- **Status:** COMPLETE (no submission deadline published)
- **Buyer:** [Trinity House](https://tenderline.uk/buyers/trinity-house-gov-pb462)
- **Published Value:** Value not published (currency not published)
- **Submission Deadline:** Not published
- **Lots:** 1
- **Procurement Method:** Below threshold - limited competition
- **Main Category:** Not published
- **Classifications (CPV):** None published
- **Delivery Location:** Not published
- **Legal Basis:** UKPGA 2023/54
- **Awarded Value:** £47,000 (exc. VAT, 1 contract)
- **Official Documents:** 1 published documents & notices ([view on Tenderline](https://tenderline.uk/tenders/cm4-bathymetry-topographic-surveys-bishop-rock-and-longships-lighthouses-ocds-h6vhtk-078527#documents))
- **OCID:** `ocds-h6vhtk-078527`

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

## Lots (1)
### Lot 1: Untitled lot
- **Lot id:** `1`
- **Status:** complete
- **CPV codes:** 71351810

## Awards & Winning Suppliers (1)
- **Award:** 1 (active)

  - Supplier(s): **Castle Surveys Limited**
  - Supplier identifiers: `GB-PPON:PBVQ-9632-NDVZ`

## Contracts (1)
- **Contract:** 1 (active)
  - Signed Value: £47,000
  - Signed Date: 08/10/2026

## Provenance and Official Sources
- **Official Notice:** [Find a Tender Notice](/out?url=https%3A%2F%2Fwww.find-tender.service.gov.uk%2FNotice%2F095836-2026)
- **Last Source Update:** 2026-10-09T15:58:28.000Z
- **This document generated:** 2026-10-13T19:54:23.641Z
- **Machine API:** https://tenderline.uk/api/public/tenders/ocds-h6vhtk-078527