“Yn ôl y ffigurau, dim ond 70-75% o werth terfynol y tŷ hwnnw mae'n ei gostio i adeiladu'ch tŷ eich hun, oherwydd nad oes angen i ddatblygwr wneud elw. Mae hynny'n golygu bod perchennog y tŷ ar ei ennill. Dim ond rhyw 10% o'r cartrefi yn y DU sy'n rhai mae'r perchennog yn eu hadeiladu ei hun, sy'n gyfradd is o lawer nag mewn gwledydd eraill ledled y byd.
“Figures suggest an average self-build house in the UK costs only 70-75% of its final value because no developer profits are involved. This puts that benefit into the pocket of the homeowner. At around 10% of new homes the UK has a much lower rate of self-building than other countries around the world.