Thame Local History
Place House - Thame's Manor House
Planning regulations governing the development of significant historical sites
(known as Planning Policy Guidance, Note 16, or PPG16 for short)
potentially place the burden of any necessary archaeology on the developer of the site.
Where deemed necessary, planning permission is only given on the condition that the developer facilitates and funds whatever archaeological excavation and recording is required.
See here for further information on PPG16 (HMG website), or here (Current Archaeology website).
The crucial factor in determining the extent of any archaeology before a development is the danger that any significant evidence will be destroyed without being properly recorded.
At the end of the day, archaeology itself can be destructive, but such destruction is admissable if it yields a thorough and accurate record of what was found.
The picture as regards the cattle market site at Thame is very complex when it comes to determining the extent of any archaeology which would be needed before any sub-surface building work could be done, since there is so little known about the original location of Place House and its outbuildings.
The probable presence of underground structures also complicates the picture.