Speen was designated as a Conservation Area in 1989 by Buckinghamshire County Council. The conservation area boundaries were altered in 1994 by Wycombe District Council. Government
Guidance states that conservation areas should have an up-to-date appraisal. More information Here

Trees in conservation areas:

Before carrying out any work on trees in a conservation area, unauthorised works to trees in a Conservation Area is a criminal offence under Section 211 of the Town and Country Planning Act 1990 (as amended).

This is the link to Buckinghamshire Council’s  section on Trees and hedges guidances

According to the Buckinghamshire Council website – May 2025 “It is illegal to cut down, prune, or damage a tree in a conservation area or one which is protected by a Tree Preservation Order (TPO) without our consent. This can lead to prosecution and a fine and, in serious cases a criminal record.”

Apply for consent to work on a protected tree – There is no fee for applications to work on a protected tree or a tree in a conservation area. – More information Here