The most recent Welsh Housing Conditions Survey showed that 82% of dwellings were free from the most serious (category 1) hazards in 2017-18, compared with 71% in 2008.
Dangosodd yr Arolwg Cyflwr Tai Cymru diweddaraf nad oedd y peryglon mwyaf difrifol (categori 1) i’w gweld mewn 82% o’r anheddau yn 2017-18, o’i gymharu â 71% yn 2008.