A set of 35 sociological reports written by Margaret Willis for London County Council's Architect's Department. The reports are based on primary research conducted through questionnaire and survey work and report on a number of factors which would influence housing design and amenity provision. There are different editions or drafts of some of the titles, and some include original photographs or are typescript. Subjects cover a wide range of issues, including: social surveys, high rise buildings, provision of laundries, and play-areas, open spaces and heating, and architectural design.

There is also some associated correspondence and paperwork relating to the creation of these reports.