Provides a case study on the nature and extent of the key-worker housing problem in Cambridge, which seeks to inform the debate about the housing affordability problems in high-cost locations in England, particularly for public sector employees. Recognises that, although the government has advised local planning authorities to carry out local assessments of key-worker housing needs and to provide solutions, little guidance exists with regard to defining key workers and key-worker housing nor on the undertaking of local assessments. Using published statistics and extensive surveys of local employers/employees, the study proposes that key-worker housing policies should be included in the Cambridge Local Plan. Concludes that broad definitions of key workers and key-worker housing should be adopted, the latter to include subsidised rented housing, shared and discounted market ownership and fixed equity tenure. Tables covering local household projections, house price/income ratios, incomes, public sector salaries and earnings per worker category, and housing costs/income range figures. References.