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The habitat of the Built Environment.

From "What should the SLP do for climate and nature?"

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The Built Environment is a habitat in its own right. There are various species who are building dependent or can adapt to a built environment. Therefore the word ‘habitat’ should be included in the list under this heading or the built environment included under the heading Natural Environment.

It is well document that closeness to nature is good for well-being and so all new development (houses, public buildings, industrial buildings, home extensions etc.) should provide nesting cavities for building dependent species. Universal bricks, based on the design of a swift brick, are used by 4 red listed species (swift, house sparrow, starling and house martin), as well as much-loved blue tits and great tits and overwintering birds and insects. They are an invaluable boost to biodiversity in a built environment.

BS 42021: 2022 provides full detail and should be referenced in the Local Plan (https://knowledge.bsigroup.com/products/integral-nest-boxes-selection-and-installation-for-new-developments-specification-1?version=standard). BS42021 has been endorsed by the NHBC in NF89 Biodiversity in new housing developments https://www.nhbc.co.uk/binaries/content/assets/nhbc/foundation/biodiversity-in-new-housing-developments.pdf page 42. “Fitting at a ratio of 1 nest brick per house across the development will ensure sufficient nest sites for colonial species. 3-5 can be located in one house, so helping locate them in suitable locations for access to foraging habitat. The British Standard BS42021 sets out details on nest box installation for the above species into domestic and commercial properties.”

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Existing nest sites should also be protected and retained, as these are not given any value by the DEFRA biodiversity net gain metric calculation so also need their own clear policy. Building-dependent species return to traditional nest sites year after year, and find it difficult to locate a new site if they lose it. Mitigation should be provided if these nest sites cannot be protected.
    Best-practice guidance such as BS 42021 and CIEEM recommends an average of at least one swift brick per home for each new-build development. Many other local authorities are including detailed swift brick requirements in their Local Plan, e.g. Wiltshire Local Plan Regulation 19 stage, which requires an enhanced number of two swift bricks per dwelling (policy 88: Biodiversity in the built environment, page 246 - "As a minimum, the following are required within new proposals: 1. integrate integral bird nest bricks (e.g., swift bricks) at a minimum of two per dwelling;" https://www.wiltshire.gov.uk/article/8048/Current-consultation-Reg-19 ), and Cotswold District Council are proposing three swift bricks per dwelling in their current Local Plan consultation (Policy EN8 item 6, and paragraph 0.8.4, https://www.cotswold.gov.uk/planning-and-building/planning-policy/local-plan-update-and-supporting-information/ ), and Brighton & Hove have had comprehensive guidance in force since 2020 requiring a minimum of three swift bricks per development and two swift bricks per dwelling, so these enhanced levels should be considered.
      Swift bricks are a universal nest brick and significantly more beneficial than external bird boxes as they are a permanent feature of the building, have zero maintenance requirements, have improved thermal regulation with future climate change in mind, and are aesthetically integrated with the design of the building. The wildlife benefits of swift bricks are highlighted by NPPG 2019 Natural Environment paragraph 023, they are the only type of bird box which is mentioned in national planning guidance.
        Design Codes & design guidance should require swift bricks in all developments including extensions in accordance with best-practice guidance, as the National Model Design Code Part 2 Guidance Notes (2021) recommends bird bricks (Integrating Habitats section on page 25, and Creating Habitats section on page 26) - swift bricks need to be included at an early stage by the architect on drawings to be fully integrated with the design and reliably installed on site.
          Profile of Beth Sweet
          Posted by:Beth Sweet
          2 years ago
          This sounds a great idea, as long as careful installation is required so that it is not just a box-ticking exercise without benefits for wildlife.
          • 1 like
          Swift bricks as a permanent universal nest brick for small bird species are an essential ecological measure in new developments, especially as they are given no value in the DEFRA Biodiversity Net Gain metric so need their own clear policy. They must be installed in accordance with best-practice guidance such as BS 42021, to ensure that a sufficient number are installed in suitable locations.
            I agree with this recommendation and have experienced the use of AfS Swift Bricks in my own house as well as others - they work and their implementation as an affordable and easy solution could arrest the decline of this red-listed iconic bird.
            • 1 like
            Agree with this recommendation of swift bricks. Building with Nature standards are useful for other similar recommendations https://www.buildingwithnature.org.uk/
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