This book discusses and analyses the affordability of housing, indentifies factors affecting affordable housing construction cost and formulates possible interventions in the Addis Ababa city, Ethiopia. Affordability of housing construction cost analysis was based on the selling (transferring) price of buildings, household income, interest rate on loan and maximum loan period. Factors affecting affordability of housing construction cost reviewed from literatures were used to design the form of questionnaire survey which was distributed to respondents: Contractors, Consultants, Addis Ababa Integrated Housing Development projects and Real Estate Developers. The analyses of interventions for the problems of housing affordability were formulated using house design and cost analysis and the concepts Life cycle change of households.