Byddai'r mater hwn fel arfer yn un cyfrinachol a threfniadol. Fodd bynnag, mae'n fwy cymhleth o ganlyniad i fater cynllunio lleol. Mae gan Gyngor Sir Fynwy gynlluniau hirsefydlog i ailddatblygu safle'r farchnad da byw yn y Fenni, ac i ail-leoli'r farchnad yn Rhaglan. Mae'r cynigion hyn wedi achosi dadlau mawr yn y dref a'r ardal ehangach, ac mae sawl cais cynllunio wedi'i wrthod. Serch hynny, rhoddwyd caniatâd cynllunio i'r gwaith ailddatblygu gan bwyllgor cynllunio'r Cyngor ym mis Mehefin eleni, yn ddarostyngedig i rai amodau. Byddai hyn yn cynnwys adeiladu archfarchnad a llyfrgell newydd ar gyfer y dref. Ceir cynigion ar wahân i adeiladu marchnad da byw newydd ger Rhaglan. Mae'r rhain oll yn faterion ar gyfer y Cyngor Sir, nid Llywodraeth Cymru.
This would normally be an arcane, procedural issue.  However it has been complicated by a local planning matter. Monmouthshire County Council has had long-standing plans to redevelop the site of the livestock market in Abergavenny, and to relocate the market to Raglan.  Those proposals have attracted strong controversy in the town and the wider area, and several planning applications have been rejected.  Nonetheless, the Council’s planning committee granted permission for the redevelopment in June of this year subject to certain conditions.  This would involve the building of a supermarket and a new library for the town.  There are separate proposals to build a new livestock market near Raglan.  These are all issues for the County Council, not the Welsh Government.