It is estimated that on average, between 6,700 and 9,700 additional housing units will be required annually during the first 5 years (with a central estimate of 8,300).
Amcangyfrifir, ar gyfartaledd, y bydd angen rhwng 6,700 a 9,700 o dai ychwanegol bob blwyddyn yn ystod y pum mlynedd gyntaf (gydag amcangyfrif canolog o 8,300).