English: rateable value
Welsh: gwerth ardrethol
Subject: Tai
English definition: A rateable value is an estimate of what it would cost to rent a property for a year, on a set valuation date. The property is assumed to be: vacant, in reasonable repair, available to let on the open market.
Welsh definition: At ddiben pennu ardrethi busnes, amcangyfrif o'r hyn y byddai'n ei gostio i rentu eiddo am flwyddyn, ar ddiwrnod prisio penodol. At ddiben y broses brisio, tybir y byddai'r eiddo dan sylw yn wag, mewn cyflwr rhesymol ac ar gael i'w osod ar y farchnad agored.
English context: When we look at the rateable values of these properties, the majority fall into the lower part of the range, with over half having a rateable value below £6,000 (Figure 3). 
Welsh context: O edrych ar werthoedd ardrethol yr eiddo hyn, mae'r mwyafrif o fewn rhan isaf yr ystod, gyda thros eu hanner â gwerth ardrethol islaw £6,000 (Ffigur 3).
Plural: gwerthoedd ardrethol