Attempts to restrict development in the Forest have failed in the States, as politicians debate the Island Development Plan for a third day.
This morning, Deputy David De Lisle led efforts to remove what's known as 'Forest West' from the list of 'Local Centres' - areas earmarked for more development under the Plan.
The Development Plan includes two Local Centres in the Forest, one east of the airport, and a second, to the west.
Deputy David De Lisle argued that the policy would mean the otherwise rural parish could become over developed and the western Local Centre should be removed.
Development and Planning Authority members emphasised that even within Local Centres development would be limited, and deputies voted against removing Forest West.
The plan involves building more houses, using more private partners in health care and getting more autonomy from the UK.
A Guernsey politician is calling for more land in the island to be set aside for farming.
Changes by politicians to Guernsey's incoming Island Development Plan could result in a lengthy public consultation having to be re-staged.