---
title: "LB Hillingdon - Colham Green - Model Build & Appraisal"
ocid: "ocds-h6vhtk-078901"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-078901"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-078901.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-078901.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "London Borough of Hillingdon"
published: "2026-10-16"
---

# LB Hillingdon - Colham Green - Model Build & Appraisal

Buyer: London Borough of Hillingdon  
Current stage: Award  
OCID: ocds-h6vhtk-078901

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## Summary

The London Borough of Hillingdon commissioned surface-water modelling and an options appraisal for the Colham Green catchment, following a feasibility assessment of a flood-alleviation scheme. The work covers stages 2 and 3 of the project, as defined in the initial feasibility proposal submitted in 2025. It is environmental engineering consultancy, focused on assessing surface-water conditions and appraising options for the catchment. Delivery is in Hillingdon, London.

The procurement is complete and the contract was awarded to Metis Consultants Limited. Hillingdon used a direct award without competition, below the applicable threshold. The contract was signed on 1 August 2026 and runs from 1 August to 30 November 2026. Its value is £48,720 including VAT. The award is active, and the contract is active. The procurement was a single lot, covering the modelling and options-appraisal work. The award records the services as environmental engineering consultancy; no specific evaluation criteria are set out.

For firms tracking repeat work from Hillingdon, this award shows demand for specialist environmental engineering consultancy on flood-alleviation planning: surface-water modelling followed by appraisal of potential options for a defined catchment. A credible competitor would need to demonstrate the technical ability to model surface-water behaviour and develop and compare practical flood-management options, as well as experience delivering work that follows a feasibility assessment. The requirement was packaged as one small, focused consultancy assignment rather than several lots. The buyer used a below-threshold direct award without competition for this procurement, so suppliers should not treat it as evidence of an open competitive route. Relevant credentials would centre on demonstrable modelling and appraisal expertise and the capacity to complete both project stages for a local-authority catchment scheme.

## Notice

Surface water modelling and option appraisal following the flood alleviation scheme feasibility assessment of the Colham Green catchment. This proposal covers Stages 2 and 3 of the project, as defined in the initial feasibility proposal submitted in 2025.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/097697-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 16 Oct 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 1 Aug 2026 - 30 Nov 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £48,720 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | London Borough of Hillingdon |
| Locality | UXBRIDGE |
| Postcode area | Southall |
| Postcode | UB8 1UW |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI7 Outer London - West and North West |
| ITL 3 | TLI74 Harrow and Hillingdon |
| Local authority | Hillingdon |
| Electoral ward | Uxbridge |
| Westminster constituency | Uxbridge and South Ruislip |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | Metis Consultants Ltd |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71313000 - Environmental engineering consultancy services

## Release History

- 16 Oct 2026 at 08:04 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/097697-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/097697-2026
  16th October 2026 - Contract details notice on Find a Tender

## Notice URLs

- https://metisconsultants.co.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-078901. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-078901.json.