--- title: "Sustainable Drainage and Habitat Restoration Framework" ocid: "ocds-h6vhtk-06130a" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06130a" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06130a.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06130a.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "SOUTHERN WATER SERVICES LIMITED" published: "2026-01-30" --- # Sustainable Drainage and Habitat Restoration Framework Buyer: SOUTHERN WATER SERVICES LIMITED Current stage: Tender OCID: ocds-h6vhtk-06130a [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06130a) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-06130a.json) ## Summary Southern Water Services Limited is currently engaged in an active tender process for its "Sustainable Drainage and Habitat Restoration Framework" project, seeking suppliers to provide services across several industry categories including land management, biodiversity improvement, sustainable drainage systems, habitat restoration, and environmental monitoring. The procurement stage is currently at the tender phase, with key activities taking place in the South East of England (UKJ). Important dates include the end of the enquiry period on 20th February 2026 and the tender submission deadline on 4th March 2026. The framework has an estimated value of £1.3 billion (excluding VAT), with a comprehensive timeline for project delivery from 2026 to 2031, extendable by up to three years. The procurement employs an open method under a competitive flexible procedure. This tender presents a significant opportunity for businesses in the environmental services and consultancy sectors to expand their operations and establish a partnership with a major utility provider. The inclusion of multiple lots and specialised areas like biodiversity net gain and SuDS makes it particularly advantageous for small and medium-sized enterprises (SMEs) and voluntary, community, and social enterprises (VCSEs) that can offer tailored, high-quality solutions. The framework arrangement allows suitable businesses to engage in long-term partnerships and secure substantial financial commitments, thereby driving business growth and sector innovation. ## Notice The objective of this tender is select suppliers to provide Sustainable Drainage and Habitat Restoration services. Bidders may submit proposals for any or all of the following Lots: Lot 1: Land Management Lot 2A: Biodiversity Improvement and Biodiversity Net Gain (BNG) - BNG Project Work Lot 2B: Biodiversity Improvement and Biodiversity Net Gain (BNG) - Purchase of BNG Units Lot 3: SuDS: Sustainable Drainage Systems Lot 4: Habitat Restoration Lot 5: Environmental Monitoring ### Lot Information Land Management Catchment and Nature Based Solutions including land management and pollution management advice, surveys, design, delivery and optioneering. To include outreach and education campaign services in the community such as schools and stakeholder groups. Renewal: Option to extend by up to a further 3 years. Biodiversity Improvement and Biodiversity Net Gain (BNG) - BNG Project Work Catchment, green infrastructure and Nature Based Solutions for biodiversity improvement including Biodiversity Net Gain (BNG) advice, surveys, metrics, design, delivery, long term assessment monitoring, administrative agreements, maintenance and optioneering. To include outreach and education campaign services in the community such as schools and stakeholder groups. Renewal: Option to extend by up to a further 3 years. Biodiversity Improvement and Biodiversity Net Gain (BNG) - Purcahase of BNG Units This covers Biodiversity Improvement and Biodiversity Net Gain (BNG) - Purcahase of BNG Units. Renewal: Option to extend by up to a further 3 years. SuDS: Sustainable Drainage Systems Catchment, green infrastructure and Nature Based Solutions including Sustainable Drainage (SuDS) advice, design, delivery and optioneering. To include outreach and education campaign services in the community such as schools and stakeholder groups. Renewal: Option to extend by up to a further 3 years. Habitat Restoration Habitat Restoration including terrestrial and river restoration scheme design, assessments, delivery, ongoing management and optioneering. To include outreach and education campaign services in the community such as schools and stakeholder groups. Renewal: Option to extend by up to a further 3 years. Environmental Monitoring Environmental monitoring and modelling to include field work, citizen science, data sharing, analysis and project reporting. Renewal: Option to extend by up to a further 3 years. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/008485-2026 | | Notice type | UK4 - Tender Notice | | Procurement type | Framework | | Procurement category | Services | | Procurement method | Open | | Procurement method details | Competitive flexible procedure | | Tender suitability | SME, VCSE | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 30 Jan 2026 | | Submission deadline | 4 Mar 2026 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 23 Jun 2026 - 23 Jun 2031 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £1,300,000,000 | | Lots value | £1,300,000,000 | | 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 | SOUTHERN WATER SERVICES LIMITED | | Locality | WORTHING | | Post town | Brighton | | Postcode | BN13 3NX | | Country | England | | ITL 1 | TLJ South East (England) | | ITL 2 | TLJ2 Surrey, East and West Sussex | | ITL 3 | TLJ27 West Sussex (South West) | | Local authority | Worthing | | Electoral ward | Northbrook | | Westminster constituency | Worthing West | | Delivery location | TLJ South East (England) | ## CPV Codes ### Divisions - 45 - Construction work - 71 - Architectural, construction, engineering and inspection services - 80 - Education and training services - 90 - Sewage, refuse, cleaning and environmental services ### Codes - 45262640 - Environmental improvement works - 71313000 - Environmental engineering consultancy services - 80540000 - Environmental training services - 90700000 - Environmental services - 90710000 - Environmental management - 90711500 - Environmental monitoring other than for construction - 90722000 - Environmental rehabilitation ## Release History - 30 Jan 2026 at 13:49 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/008485-2026 ## Documents - https://www.find-tender.service.gov.uk/Notice/008485-2026 30th January 2026 - Tender notice on Find a Tender ## Notice URLs - http://www.southernwater.co.uk - https://southernwater.bravosolution.co.uk - https://southernwater.bravosolution.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-06130a. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06130a.json.