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Stansfield Road SuDS Project, Construction partner

London Borough of Hounslow

This public procurement record has 1 release in its history.

Planning

26 Aug 2026 at 12:09

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

The London Borough of Hounslow intends to appoint a construction contractor for the Stansfield Road Sustainable Drainage Systems (SuDS) scheme in the green space beside St Dunstan’s Road and Grantley Road, near TW4 7QW, London. The works will create an attenuation basin with permanent water storage, divert an existing Thames Water sewer into it and discharge flows at a controlled rate into the existing drainage network. The scope includes excavation, new pipework, headwalls and manhole connections, four inspection chambers, a penstock valve, exceedance and flow-control chambers, basin lining and planting. It also includes removing three trees, relocating a gate and providing above- and below-ground maintenance after construction. The procurement is for drainage construction works.

This procurement is at the planning stage: Hounslow has stated its intention to procure and has not yet invited tenders. It expects to use an open procedure for one lot, with the contract planned to run from 1 March 2027 to 31 May 2028. The estimated value is £275,000 excluding VAT, or £330,000 including VAT. The buyer carried out preliminary market engagement on 1 July 2026 by emailing four suppliers about the project. It identified no key themes, made no changes to the requirement and stated that no supplier received an unfair advantage. The lot is identified as suitable for small and medium-sized enterprises. Indicative timings and the proposed approach may be refined before the market invitation.

The work should suit civil engineering and drainage contractors able to construct sustainable drainage infrastructure and maintain it after completion. Relevant capability includes excavation and earthworks, pipe laying, installation of manholes, inspection chambers, headwalls, penstock valves and flow-control equipment, together with basin lining and planting. Suppliers will need to plan works around live utility services and existing roads, and coordinate activities in a public green space. Experience of diverting sewers into attenuation facilities and controlling discharge into existing drainage networks would be directly relevant. Contractors should also be prepared to manage tree removal and gate relocation and to provide both above-ground and below-ground maintenance. SMEs are expressly considered suitable, so smaller specialist firms may wish to prepare for the future tender.

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Notice Information

Notice Title

Stansfield Road SuDS Project, Construction partner

Notice Description

This is for the procurement of a contractor to construct the Stansfield Road SuDS scheme and provide above and below ground maintenance for 12 months following construction. This scheme involves the construction of an attenuation basin on the green space adjacent to St. Dunstans Road TW4 7QW including excavation, new pipework and headwalls, 4 inspection chambers, lining and planting of basin.

Planning Information

We emailed 4 suppliers with details of our project. There were no key themes identified. There were no changes made to the requirement as a result and no supplier has been given an unfair advantage. The information supplied was: The works are: • It is proposed to construct an attenuation basin in the green space bordering St. Dunstan's Road and Grantley Road. An existing Thames Water sewer will be diverted into the basin, which will have a 300mm permanent water level and provide an additional 440m3 of storage. A new manhole with a penstock will be installed at the sewer diversion point to ensure the sewer is fully diverted into the basin. The basin will then discharge flows at a controlled rate into the existing network on St. Dunstan's Road. The proposed basin will provide formalised storage within the park, reducing the risk of flooding by alleviating pressure on the existing network, and increasing amenity value to the area. • • The works associated with the construction of the attenuation basin include: • • Excavation of attenuation basin. • • Removal of 3 trees and relocation of existing gate. • • New manhole connections to the existing drainage network. • • Pipe laying. • • Installation of a penstock valve. • • Installation of an exceedance chamber. • • Installation of a flow control chamber. • • Working around live services and existing roads.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06ec4d
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/081206-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Not Specified
Procurement Method Details
Not specified
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45232450 - Drainage construction works

45232451 - Drainage and surface works

Notice Value(s)

Tender Value
£275,000 £100K-£500K
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
26 Aug 2026Today
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
1 Mar 2027 - 31 May 2028 1-2 years
Recurrence
Not specified

Notice Status

Tender Status
Planning
Lots Status
Planning
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
London Borough of Hounslow
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
HOUNSLOW, LONDON
Postcode
TW3 3EB
Postcode Area
Twickenham
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI7 Outer London - West and North West
Small Region (ITL 3)
TLI75 Hounslow and Richmond upon Thames
Delivery Location
TLI London
Local Authority
Hounslow
Electoral Ward
Hounslow West
Westminster Constituency
Feltham and Heston

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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