Last edited 15 Feb 2021

Ecological baseline

The ecological baseline is the ecological value of a site before construction works are undertaken. It can be compared to the ecological value of the site after construction works are complete to determine where there have been changes.

In this context, ecological value is the importance, worth, or usefulness of a species, habitat or ecosystem in terms of its impact on other species and / or habitats, as well as other environmental, social, cultural and economic value that can be delivered from species and habitats and their interactions, specific to a geographical frame of reference.

Ref Home Quality Mark One, Technical Manual SD239, England, Scotland & Wales, published by BRE in 2018.

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