RE: Planning approval3 Feb 2021 11:24
What are the Secretary of State’s powers of intervention to call in a planning application?
Section 77 of the Town and Country Planning Act 1990 empowers the Secretary of State to call in a planning application for his own determination. The power can be exercised at any time up to planning permission being issued by a local planning authority. In considering whether to call in a planning application, the Secretary of State is generally concerned with whether the application involves planning issues of more than local importance that warrant the decision being made by him rather than the local planning authority. However each case will be considered on its merits. The call in policy was updated on 26 October 2012 in a written ministerial statement.
Any person may ask the Secretary of State to call in an application for his own determination. Applications may also be referred to the Secretary of State by the local planning authority under the Town and Country Planning (Consultation) (England) Direction 2009. Requests for call in should be sent to the Ministry of Housing, Communities and Local Government’s Planning Casework Unit at the following:
Well this is from gov.uk . Not sure it applies to Wales?