Source: https://tendernation.io/opportunities/01a13bbb-b91d-72e8-aa8f-6aa68fc64b5d/riparian-buffer-strip-tool-and-methodology-for-project-assessments awarded GB open procedure Suitable for SMEs # Riparian Buffer Strip Tool and Methodology for project assessments [Natural England](https://tendernation.io/buyers/natural-england) Estimated value £24,999 Published 27 Jun 2025 Deadline Closed 21 Jun 2025 ## Who can bid - Open to suppliers based in the UK The buyer has limited bidding to suppliers with substantive operations in this area. [PPN 005: reserving by supplier location](https://www.gov.uk/government/publications/ppn-005-reserving-below-threshold-procurements/ppn-005-guide-to-reserving-below-threshold-html) - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Below-threshold contract Buyers cannot shortlist bidders on suitability before tenders are in, so everyone gets to submit a bid (except some larger works contracts). [Procurement Act 2023, section 85](https://www.legislation.gov.uk/ukpga/2023/54/section/85) - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender Natural England is developing the Conservation Measures Standard to underpin the delivery of the NRF. Part of this work requires a methodology and tool for quantify the nutrient reductions generated through implementing riparian buffer strips (RBS) in Nutrient Neutrality (NN) catchments to improve water quality. This tool will facilitate mitigation scheme suppliers to design and deliver robust RBS to generate nutrient reductions capable of offsetting nutrient inputs from development in NN catchments. This tool and its associated guidance will be part of a wider project Natural England has begun to produce standardised tools, guidance and assessment criteria to ensure conservation measure projects (mitigation schemes) are effective at achieving the intended environmental outcome. This project, the Conservation Measures Standard (CMS), will develop Solution Toolkits for each of the measure relied upon to deliver nutrient mitigation, prioritising the most effective and commonly used measures to allow scheme suppliers to design and implement high-quality schemes in accordance with the set standard. This request for work will build on existing work on RBS to generate nutrient mitigation by commissioning a comprehensive methodology and tool to accurately quantify the nutrient reduction achieved at a project scale through the implementation of RBS. The commission forms two parts, the first request is to design a robust methodology to calculate the N and P reduction achieved in kg/year by implementing a RBS project in a NN catchment. This will need to be developed in collaboration with NE and should incorporate the existing evidence base commissioned by NE. The second part of this commission is to use GIS and data science/analytics to develop a tool to enable site specific calculations for N and P reductions achieved by a RBS project. This must be based on the above methodology and should incorporate a level of precaution to account for any uncertainty. The work should align with other publications and tools generated by NE to quantify the nutrient inputs resulting from new development (Nutrient Neutrality calculators) and to quantify the nutrient reductions achieved by Nature-based Solutions/mitigation measures (Cover Crop calculators). Read full description ## CPV classification Environmental services Source Find a Tender (UK) · Notice ocds-h6vhtk-0524ce-2025-06-27T14:26:26+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-0524ce-2025-06-27T14:26:26+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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