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AWARD
Complete
K298 Maple Lodge STW Quality AMP 7 New Permit
Published 17 Feb 2026
17 Feb 2026
- Primary CPV
-
45252127 *
Wastewater treatment plant construction work
- Location
- 🇬🇧 London
- Value
- No value specified
- Contract
-
4 years Duration
01/04/2026 29/03/2030
- Contract Types
-
45 *Construction workFull CPV Breakdown
- SME suitable
- Not stated
Publisher Address
Clearwater Court, Reading, RG1 8DB, United Kingdom · UKI
Contact
Award Criteria
Not specified
Related tenders
THAMES WATER UTILITIES LIMITED
All notices from this publisher Same CPV code
45252127 *
All notices with this CPV code
Reference: TC2239
This project includes, but is not limited to the following packages of work:
An additional inlet screen with civils alterations and screening handling upgrade
An additional detritor and flow inlet channel, incorporating a new storm separation weir
A new storm tank and river outfall, including flow transfer culvert and new storm return pumping station
Upgrades to the existing six PSTs and conversion of three storm tanks into PSTs, fitted with chain and flight scraper Replacement Primary chemical dosing pumps to aid Phosphorus removal
A new activated sludge plant Bank C, with new feed PS and blowers
Eight new 28m diameter final settlement tanks, interconnecting pipework, distribution chambers and RAS system
A new secondary chemical dosing system to aid Phosphorus removal
Two new Tertiary Solids Removal treatment plants, one serving the effluent from Bank A and B, and one serving the effluent from the new Bank C
An additional Drum thickener
New incoming switchboard for the new DNO supply
Modification and upgrade of HV/LV networks
Modification and upgrade to the power management system and site-wide SCADA
Modification and upgrade to the Process SCADA
Additional standby powered generation
Demolition and removal of redundant structures, plant and equipment
N.B. Please note that this Contract Notice shows a value of £280m. The current contract value is circa £140m-£280m.
Full CPV breakdown
- 45252127 — Wastewater treatment plant construction work (primary)
Notice details
- Buyer type
- Utility
- Competition
- Restricted / competitive (suppliers are shortlisted first)
- Contract type
- Works
- Winning supplier
- Large company
- Procurement method
- Competitive flexible procedure
- Main category
- Works
- Above threshold
- Yes
- Legal basis
- UKPGA 2023/54
- Notice status
- Complete
- Award status
- Pending
- Award date
- 17 Feb 2026
- Standstill period ends
- 26 Feb 2026
- Reserved / special regime
- Utilities
- Language
- EN
- Published
- 17 Feb 2026 15:58
- OCID
- ocds-h6vhtk-04faf2
- Notice ID
- TC2239
Organisations on this notice
Supplier Large
2nd Floor Optimum House, Salford, M50 3XP, United Kingdom
GB-COH 01157281
Key dates
- Future Signature Date
- 31 Mar 2026 · Scheduled
Full notice record
54 detailsEverything the publisher included in this notice, organised by section.
Organisations
| Party 1 › Name | THAMES WATER UTILITIES LIMITED |
| Party 1 › Address › Street | Clearwater Court |
| Party 1 › Address › Town / city | Reading |
| Party 1 › Address › Postcode | RG1 8DB |
| Party 1 › Address › Country | GB |
| Party 1 › Address › Country | United Kingdom |
| Party 1 › Address › Region (NUTS) | UKJ11 |
| Party 1 › Contact › Email | procurement.support.centre@thameswater.co.uk |
| Party 1 › Role | buyer |
| Party 1 › Classification › Description | Private utility |
| Party 2 › Name | KIER INFRASTRUCTURE AND OVERSEAS LIMITED |
| Party 2 › Address › Street | 2nd Floor Optimum House |
| Party 2 › Address › Town / city | Salford |
| Party 2 › Address › Postcode | M50 3XP |
| Party 2 › Address › Country | GB |
| Party 2 › Address › Country | United Kingdom |
| Party 2 › Address › Region (NUTS) | UKD34 |
| Party 2 › Contact › Email | kisproposals@kier.co.uk |
| Party 2 › Role | supplier |
| Party 2 › Link | http://www.kier.co.uk |
| Party 2 › Business size | large |
| Party 2 › VCSEs | No |
| Party 2 › Public service mission organisation | No |
| Party 2 › Sheltered workshop | No |
Buyer
| Name | THAMES WATER UTILITIES LIMITED |
Tender
| Title | K298 Maple Lodge STW Quality AMP 7 New Permit |
| Status | complete |
| Procedure type | selective |
| Procedure | Competitive flexible procedure |
| Special regime | utilities |
| Lot › Status | complete |
Awards
| Title | K298 Maple Lodge STW Quality AMP 7 New Permit |
| Status | pending |
| Date | 17 Feb 2026 |
| Value › Value incl. VAT | £280,000,000 |
| Value › Currency | GBP |
| Category | works |
| Above threshold | Yes |
| Supplier › Name | KIER INFRASTRUCTURE AND OVERSEAS LIMITED |
| Item › CPV › Description | Wastewater treatment plant construction work |
| Item › Delivery › Region (NUTS) | UKI |
| Item › Delivery › Country | GB |
| Item › Delivery › Country | United Kingdom |
| Standstill period › End | 26 Feb 2026 |
| Contract period › Start | 1 Apr 2026 |
| Contract period › End | 29 Mar 2030 |
| Document › Document type | Award notice |
| Document › Description | Contract award notice on Find a Tender |
| Document › Link | https://www.find-tender.service.gov.uk/Notice/014471-2026 |
| Document › Published | 17 Feb 2026 |
| Assessment Summaries Date Sent | 17 Feb 2026 |
| Milestone › Type | Future signature date |
| Milestone › Due | 31 Mar 2026 |
| Milestone › Status | scheduled |