All of our newts are protected under the Wildlife and Countryside Act 1981, prohibiting trade in any of the three species. Declines have been observed in all three species, probably a result of the loss of many ponds across the UK. Common and palmate newts remain quite common and are not considered under threat at present so are not listed by the IUCN. Great crested newts are categorised as 'lower risk'. In the UK great crested newts are quite rare due to population declines, and they are heavily protected under law, making it illegal to harm or kill them, disturb their habitat at all, or even handle them without a licence. They are a priority species under the UK Biodiversity Action Plan, aiming to maintain, enhance and restore populations.
Hope you can keep them safe, but that the mess next door can be cleared up too!!