Please rate the relevance to the housing domain of the potential new indicator on dwellings with poor energy performance (subject to increasing the coverage of the EPC dataset).
Rhowch eich barn ar ba mor berthnasol i'r maes tai yw'r dangosydd newydd posibl ar gyfer anheddau â pherfformiad ynni gwael (yn amodol ar gynyddu cwmpas y set ddata ar Dystysgrifau Perfformiad Ynni).