---
title: "CEFAS24-146 Contract for Light Detection & Ranging (LiDAR) surveys at Sizewell."
ocid: "ocds-b5fd17-dbb4302e-46e5-4a2d-8d37-39a165593798"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-dbb4302e-46e5-4a2d-8d37-39a165593798"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-dbb4302e-46e5-4a2d-8d37-39a165593798.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-dbb4302e-46e5-4a2d-8d37-39a165593798.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "CEFAS"
published: "2025-01-29"
---

# CEFAS24-146 Contract for Light Detection & Ranging (LiDAR) surveys at Sizewell.

Buyer: CEFAS  
Current stage: Award  
OCID: ocds-b5fd17-dbb4302e-46e5-4a2d-8d37-39a165593798

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## Summary

Cefas has awarded the contract titled "CEFAS24-146 Contract for Light Detection & Ranging (LiDAR) surveys at Sizewell" to HexCam Ltd. This contract falls under the industry category of survey services (CPV 79311000) and involves conducting LiDAR surveys at the Sizewell-Minsmere location to support the BEEMS Programme. The procurement method utilised was an open procedure (below threshold). The award was announced on 24th January 2025, with the contract period beginning on 29th January 2025 and concluding on 31st August 2025. The project's necessary surveys will occur in January, March/April, and June, focusing on various coastal vegetation states. The total contract value is £30,102 GBP, and the project will encompass a range of locations, including the British Oversea Territories, Channel Islands, Europe, Isle of Man, and the United Kingdom.

This tender offers substantial opportunities for businesses specialising in advanced survey technologies, particularly those with experience in LiDAR and GNSS technologies. SMEs (small and medium enterprises) are especially well-suited to compete, given Cefas's suitability criteria. Successful participation in this contract can provide these businesses with the chance to showcase and refine their cutting-edge surveying capabilities, promote innovation, and strengthen their reputation within the industry. The comprehensive nature of the work – involving the latest generation of LiDAR sensors and stringent accuracy requirements – means that companies can leverage this project as a significant portfolio highlight and a stepping stone to secure future, high-value contracts within the environmental and geospatial surveying sectors.

## Notice

To support the delivery of the BEEMS Programme, Cefas have the requirement to work with a supplier to assess error margins around estimates of the ground elevation under dune and coastal vegetation at Sizewell-Minsmere. Accurate, or slightly conservative, estimates of the beach and dune surface under vegetation are required to ensure that beach volumes (specifically Soft Coastal Defence Feature (SCDF) volumes) are not over-estimated which could otherwise result in delayed SCDF maintenance triggers and maintenance, and increased risks of SCDF buffer & Hard Coastal Defence Feature (HCDF) exposure. The supplier is required to test the next generation of Light Detection and Ranging (LiDAR) sensors, which have more power and improved laser to penetrate further into the vegetation, against elevations from detailed ground truthing Global Navigation Satellite System (GNSS) and Red Green Blue (RGB) optical imagery. Surveys are required to be undertaken when coastal vegetation is at its minima, average and maxima (c. January, March/April and June). The proposed work will include three LiDAR surveys, each with accompanying ground truth surveys, collected with a GNSS receiver rover (short occupation only, no tripod required). Accuracy requirements for ground truthing measurements are to be within Root Mean Square Error (RMSE) +-3cm horizontal and +-4cm vertical, equivalent to a detailed survey performed under relative kinematic methodology as per RICS 'Use of GNSS in land surveying and mapping 3rd edition' standards. Please see supporting documents contained within the bidder pack for details of the survey area, and minimum expected ground truthing points. Each summary report will require the supplier to: * Extract the LiDAR Digital Terrain Model (DTM) elevation (if more than one model has been used then extract for each model), the LiDAR Digital Surface Model (DSM) point cloud mean and minimum elevations, and the RGB optical DSM elevation, at each ground truth location. o To be performed separately for calibration and validation data, and then performed all together. * Generate difference statistics for the ground truth validation points in the LiDAR DTM and compare with the LiDAR calibration points * Generate difference statistics and graphics for all methods against the ground truth values. * Draw conclusions about different methods and how well they estimate the true ground surface both in general and specifically for each broad vegetation type (low grass, dune vegetation, reeds, gorse, shrubs/trees). Express this in elevation and beach volume terms (Cefas will provide the method for the latter) * Present the results for Cefas in advance of a short report on all of the above.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/abf90be8-beb8-4f24-8c24-fba32dfbe34c |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure (below threshold) |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 29 Jan 2025 |
| Submission deadline | 10 Jan 2025 |
| Future notice date | Not specified |
| Award date | 24 Jan 2025 |
| Contract period | 29 Jan 2025 - 31 Aug 2025 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £30,102 |
| Lots value | Not specified |
| Awards value | £30,102 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | CEFAS |
| Locality | LOWESTOFT |
| Post town | Norwich |
| Postcode | NR33 0HT |
| Country | England |
| ITL 1 | TLH East (England) |
| ITL 2 | TLH6 Suffolk |
| ITL 3 | TLH63 East Suffolk |
| Local authority | East Suffolk |
| Electoral ward | Kirkley & Pakefield |
| Westminster constituency | Lowestoft |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | HEXCAM |

## CPV Codes

### Divisions

- 79 - Business services: law, marketing, consulting, recruitment, printing and security

### Codes

- 79311000 - Survey services

## Release History

- 29 Jan 2025 at 11:27 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/abf90be8-beb8-4f24-8c24-fba32dfbe34c

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/abf90be8-beb8-4f24-8c24-fba32dfbe34c
  29th January 2025 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/7cf48c9e-ef2c-4d24-bb3b-9f3743663c83
  CEFAS24-146 NNB Short Form Contract Countersigned_Redacted

## Provenance

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