---
title: "Leasing Round 6 DIGITAL AERIAL SURVEY (DAS) SUPPLIER"
ocid: "ocds-h6vhtk-06a5f0"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06a5f0"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06a5f0.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06a5f0.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "THE CROWN ESTATE"
published: "2026-07-10"
---

# Leasing Round 6 DIGITAL AERIAL SURVEY (DAS) SUPPLIER

Buyer: THE CROWN ESTATE  
Current stage: Tender  
OCID: ocds-h6vhtk-06a5f0

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## Summary

The Crown Estate is actively seeking tenders for a Digital Aerial Survey (DAS) supplier under its Leasing Round 6 offshore wind programme. This opportunity, titled "Leasing Round 6 DIGITAL AERIAL SURVEY (DAS) SUPPLIER," is aimed at providing comprehensive ecological surveys across designated Project Development Areas in the UK. The procurement process, currently in the tender stage, involves an open, competitive flexible procedure. The tender calls for one supplier to manage a 24-month programme, beginning in November 2026, and the contract will last for an initial 33-month term. Vital procurement activities will include monthly manned aerial surveys covering birds, marine mammals, and megafauna, with outputs supporting Environmental Impact Assessments (EIA) and Habitats Regulations Assessments (HRA). The tender period is set to conclude on 20 August 2026, with the award anticipated by November of the same year.

This tender presents substantial opportunities for businesses specialising in environmental services, offshore services, and engineering-related scientific and technical services. With a gross value of up to £5 million, companies with capabilities in digital aerial surveys, data analysis, and environmental monitoring can leverage this contract to significantly expand their portfolios and establish a prominent role in the renewable energy sector, particularly within offshore wind projects. The structure of the procurement process encourages comprehensive submissions focusing on quality and commercial criteria, providing an advantageous environment for businesses experienced in executing large-scale ecological surveys and data analyses. This tender is particularly suitable for firms equipped with personnel and technology adept at managing rigorous survey and reporting standards necessary for government projects.

## Notice

The Crown Estate is procuring a single supplier to deliver a 24-month Digital Aerial Survey (DAS) programme for birds, marine mammals and megafauna across the Project Development Areas (PDAs) designated under Leasing Round 6 (LR6) of its offshore wind programme. The requirement covers monthly survey flights using manned aircraft only, data capture, processing, species identification, analysis and reporting across all LR6 PDAs and associated buffer zones. Outputs must be suitable for use in Environmental Impact Assessment (EIA) and Habitats Regulations Assessment (HRA) for offshore wind development. The contract is for an initial 33-month term commencing November 2026.

### Planning Information

The Crown Estate intends to undertake a structured programme of preliminary market engagement to inform the design of the forthcoming procurement for a Digital Aerial Survey (DAS) supplier as part of Leasing Round 6.
The scope of this engagement will cover technical delivery requirements (including survey methodology, aircraft and data acquisition approaches), commercial arrangements (including pricing models and contract duration), and legal considerations (including liability and third‑party reliance on survey data). Feedback is sought from suppliers with relevant experience and capability in offshore aerial survey and environmental monitoring.
Engagement will be conducted through a combination of:
A written Market Engagement Questionnaire (MEQ) issued to interested suppliers
Optional 1:1 supplier engagement sessions (virtual, via Microsoft Teams) to explore responses in further detail
The anticipated engagement period is May to June 2026, with 1:1 sessions expected to take place during this period at mutually agreed times. No in-person events are currently planned.
Suppliers wishing to participate should submit an expression of interest by contacting:

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/065346-2026 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Planning, Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 10 Jul 2026 |
| Submission deadline | 20 Aug 2026 |
| Future notice date | 5 Jun 2026 |
| Award date | Not specified |
| Contract period | 2 Nov 2026 - 31 Jul 2029 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £4,000,000 |
| Lots value | £4,000,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | THE CROWN ESTATE |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1Y 4AH |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | TLC North East (England), TLD North West (England), TLE Yorkshire and The Humber, TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLI London, TLJ South East (England), TLK South West (England) |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services
- 76 - Services related to the oil and gas industry
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 71350000 - Engineering-related scientific and technical services
- 76520000 - Offshore services
- 90700000 - Environmental services

## Release History

- 10 Jul 2026 at 15:43 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/065346-2026
- 28 May 2026 at 10:46 - PlanningUpdate - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/050208-2026
- 27 May 2026 at 10:54 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/049576-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/065346-2026
  10th July 2026 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/050208-2026
  28th May 2026 - Preliminary market engagement notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/049576-2026
  27th May 2026 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- https://secure.sourcedogg.com/profile/676e86f0-50b5-4563-b7b6-529dcfeb28b7/requests/78622
- https://secure.sourcedogg.com/profile/676e86f0-50b5-4563-b7b6-529dcfeb28b7/requests/78623
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06a5f0. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06a5f0.json.