---
title: "Reassessment of carbon sequestration capacity and storage of all CoLC managed green spaces"
ocid: "ocds-h6vhtk-05d4fc"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d4fc"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d4fc.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d4fc.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON"
published: "2025-10-28"
---

# Reassessment of carbon sequestration capacity and storage of all CoLC managed green spaces

Buyer: THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON  
Current stage: Award  
OCID: ocds-h6vhtk-05d4fc

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## Summary

The procurement process, initiated by The Mayor and Commonalty and Citizens of the City of London, focused on the "Reassessment of carbon sequestration capacity and storage of all CoLC managed green spaces." This project was categorised under environmental services and aimed to estimate carbon sequestration and storage across green spaces managed by the City of London. The award stage of this procurement was completed, with the contract signed on 27th August 2025, and the contract period running from 1st September 2025 to 31st March 2026. The procurement method was limited competition, and it fell below the threshold for public procurement requirements. The main supplier awarded the contract was Treeconomics Ltd, a large enterprise based in Exeter, United Kingdom.

This project presents significant opportunities for businesses engaged in environmental services, particularly those specialising in carbon management and ecological assessments. Companies that are adept at utilising field sampling surveys and satellite imagery are well-positioned to compete and collaborate in similar procurement initiatives. The outcomes of such contracts contribute to broader sustainability goals and provide valuable experience in working with municipal authorities, enhancing a company's profile and expertise in public sector tenders.

## Notice

Assess carbon sequestration capacity and storage of all CoLC managed green spaces: by conducting field sampling surveys and correlating data with satellite imagery, produce a comprehensive estimate of the total current sequestration capacity and carbon storage for all natural habitats under COLC's management and compare this with COLC's 2018 baseline rates. - as defined in the further documents below

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/068862-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Limited |
| Procurement method details | Below threshold - limited competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 28 Oct 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 26 Aug 2025 |
| Contract period | 31 Aug 2025 - 31 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £28,840 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON |
| Locality | CITY OF LONDON |
| Post town | Central London |
| Postcode | EC2P 2EJ |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI43 Haringey and Islington |
| Local authority | Islington |
| Electoral ward | Clerkenwell |
| Westminster constituency | Islington South and Finsbury |
| Delivery location | Not specified |

## Supplier

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

## CPV Codes

### Divisions

- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 90700000 - Environmental services

## Release History

- 28 Oct 2025 at 11:08 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/068862-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/068862-2025
  28th October 2025 - Contract details notice on Find a Tender

## Notice URLs

- https://www.cityoflondon.gov.uk
- 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-05d4fc. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d4fc.json.