The Pineapple Homes Consortium represents an innovative partnership model for addressing one of the UK’s most pressing challenges: Retrofitting ageing, energy-inefficient housing stock to meet net zerotargets and tackle fuel poverty.

This case study examines how a B-Corp consultancy brought together major corporations, specialist firms, and social housing providers to create a scalable, transformative solution for delivering whole-house retrofits in the social housing sector.

The study explores how the Consortium overcame market fragmentation and financing barriers to create a viable commercial model, with potential access to a £1bn+ annual income stream in an emerging £100bn+ marketplace. It details the partnership’s evolution from initial concept to implementation, analysing the critical success factors that enabled effective collaboration among diverse partners. The case offers valuable insights for other multi-stakeholder partnerships, particularly highlighting the importance of independent coordination, simultaneous development of supply and demand, and building strong foundations through careful partnership development.

It concludes by examining how government policy and philanthropic support could help scale this model to address the broader challenge of retrofitting 29 million UK homes and the wider built environment, potentially providing a blueprint for similar initiatives internationally.