Sustainable Drainage and Habitat Restoration Framework

Procurement reference

Prj_7469

Procurement description

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

Main category

Services

Delivery regions

• UKJ - South East (England)

Total value (estimated, excluding VAT)

1300000000 GBP to 7800000000GBP

Contract dates (estimated)

24 June 2026, 00:00AM to 23 June 2031, 23:59PM

Extension end date (if all the extensions are used): 23 June 2034

Is a framework being established?

Yes

Southern Water Services Limited

Procedure type

Competitive flexible procedure

Is this procurement under a special regime?

Utilities

Is the total value above threshold?

Above threshold

Percentage fee charged to suppliers

0.0000%

Award method when using the framework

With and without reopening competition

Framework operation description

Full details provided in the tender documents

Description

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.

CPV classifications

• 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

Delivery regions

• UKJ - South East (England)

Lot value (estimated)

1300000000 GBP Excluding VAT

1560000000 GBP Including VAT

Sustainability

Small and medium-sized enterprises (SME)

Voluntary, community and social enterprises (VCSE)

Contract start date (estimated)

24 June 2026, 00:00AM

Contract end date (estimated)

23 June 2031, 23:59PM

Extension end date (estimated)

23 June 2034, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Option to extend by up to a further 3 years.

Participation

Award criteria

Description

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.

CPV classifications

• 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

Delivery regions

• UKJ - South East (England)

Lot value (estimated)

1300000000 GBP Excluding VAT

1560000000 GBP Including VAT

Sustainability

Small and medium-sized enterprises (SME)

Voluntary, community and social enterprises (VCSE)

Contract start date (estimated)

24 June 2026, 00:00AM

Contract end date (estimated)

23 June 2031, 23:59PM

Extension end date (estimated)

23 June 2034, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Option to extend by up to a further 3 years.

Participation

Award criteria

Description

This covers Biodiversity Improvement and Biodiversity Net Gain (BNG) - Purcahase of BNG Units.

CPV classifications

• 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

Delivery regions

• UKJ - South East (England)

Lot value (estimated)

1300000000 GBP Excluding VAT

1560000000 GBP Including VAT

Sustainability

Small and medium-sized enterprises (SME)

Voluntary, community and social enterprises (VCSE)

Contract start date (estimated)

24 June 2026, 00:00AM

Contract end date (estimated)

23 June 2031, 23:59PM

Extension end date (estimated)

23 June 2034, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Option to extend by up to a further 3 years.

Participation

Award criteria

Description

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.

CPV classifications

• 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

Delivery regions

• UKJ - South East (England)

Lot value (estimated)

1300000000 GBP Excluding VAT

1560000000 GBP Including VAT

Sustainability

Small and medium-sized enterprises (SME)

Voluntary, community and social enterprises (VCSE)

Contract start date (estimated)

24 June 2026, 00:00AM

Contract end date (estimated)

23 June 2031, 23:59PM

Extension end date (estimated)

23 June 2034, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Option to extend by up to a further 3 years.

Participation

Description

Award criteria

Type: quality

Name

Technical

Description

Response to Technical Questions

Weighting: 60

Weighting type: percentageExact

Type: quality

Name

Commercial

Description

Response to Commercial Document

Weighting: 40

Weighting type: percentageExact

Award criteria

Type: quality

Name

Technical

Description

Response to Technical Questions

Weighting: 60

Weighting type: percentageExact

Type: quality

Name

Commercial

Description

Response to Commercial Document

Weighting: 40

Weighting type: percentageExact

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.

CPV classifications

• 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

Delivery regions

• UKJ - South East (England)

Lot value (estimated)

1300000000 GBP Excluding VAT

1560000000 GBP Including VAT

Sustainability

Small and medium-sized enterprises (SME)

Voluntary, community and social enterprises (VCSE)

Contract start date (estimated)

24 June 2026, 00:00AM

Contract end date (estimated)

23 June 2031, 23:59PM

Extension end date (estimated)

23 June 2034, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Option to extend by up to a further 3 years.

Participation

Award criteria

Description

Environmental monitoring and modelling to include field work, citizen science, data sharing, analysis and project reporting.

CPV classifications

• 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

Delivery regions

• UKJ - South East (England)

Lot value (estimated)

1300000000 GBP Excluding VAT

1560000000 GBP Including VAT

Sustainability

Small and medium-sized enterprises (SME)

Voluntary, community and social enterprises (VCSE)

Contract start date (estimated)

24 June 2026, 00:00AM

Contract end date (estimated)

23 June 2031, 23:59PM

Extension end date (estimated)

23 June 2034, 23:59PM

Can the contract be extended?

Yes

Description of extensions

Option to extend by up to a further 3 years.

Participation

Award criteria

Payment terms

See Tender documents for full details.

Tender submission deadline

04 March 2026, 16:00PM

Enquiry deadline

20 February 2026, 16:00PM

Date of award of contract

23 June 2026, 23:59PM

Submission address and any special instructions

The procurement documents are available for unrestricted and full direct access, free of charge, athttps://southernwater.bravosolution.co.uk/Additional information can be obtained from the above-mentioned addressTenders or requests to participate must be submitted electronically viahttps://southernwater.bravosolution.co.ukTenders or requests to participate must be submitted to the above-mentioned addressIf you are interested in bidding for this tender, please be aware that you will need to have registered on the central digital platform before you will be able to bid. This will require you to complete some information and then you will be provided with a unique identifier. For more information on how to register, please follow the below link:how to register on the CDP

May tenders be submitted electronically?

Yes

Languages that may be used for submission

• English