Preliminary Ecological Appraisal (PEA) London
If asked to describe where in London you might think a Preliminary Ecological Appraisal (PEA) would be least likely to be required I expect a few people might say Trafalgar Square.

Admiral Horatio Nelson atop Nelson’s Column
Which is why we were surprised to conducting a Preliminary Ecological Appraisal (PEA) in Trafalgar Square, London just last week (June 2025).
So what did we find?
- limited habitat, even for breeding birds such as Feral pigeons Columba livia
- [project] does not impact any priority habitats, it involves only sealed surfaces with zero biodiversity value
So there we are the pigeons got a mention at least.
If you require a Preliminary Ecological Appraisal (PEA) for a site within the greater london area, we can provide a quotation.
Please contact us. Quickest way to get a quote is to email over a set of plans.
Image: Beata May, CC BY-SA 3.0