Mr Williams, who is the leader of the local Plaid Cymru Group, a member of Pembrokeshire's National Park Authority and Chairman of its Development Management Committee, has suggested that the local authority should actively pursue a policy of compulsory purchasing second homes, claiming "this crisis needs that sort of action".
It will also address how ESD can help move Sustainable Developmentpolicy and action forward to meet different global, regional, national, and local needs.
The report - an annual report on the local authority's allotment policy - will be considered by next week's planning, environment and development committee.