House Price to Income Ratio is the basic affordability measure for housing in a given area. It is generally the ratio of median house prices to median familial disposable incomes, expressed as years of income.

Mortgage as Percentange of Income is a the ratio of the actual monthly cost of the mortgage to take-home family income. Average monthly salary is used to estimate family income.

Loan Affordability Index is an inverse of mortgage as percentage of income.

Price to Rent Ratio - is the average cost of ownership divided by the received rent income (if buying to let) or the estimated rent that would be paid if renting (if buying to reside).

Gross Rental Yield is the total yearly gross rent divided by the house price (expressed in percentages).