A home for all within planetary boundaries: pathways for meeting England’s housing needs without transgressing national climate and biodiversity goals

Journal Paper by Sophus zu Ermgassen, Michal Drewniok, Joseph W. Bull, Christine Corlet Walker, Mattia Mancini, Josh Ryan-Collins, André Cabrera Serrenho
Ecological Economics | August 2022

Summary

Secure housing is core to the Sustainable Development Goals and a fundamental human right. However, potential conflicts between housing and sustainability objectives remain under-researched. We explore the impact of current English government housing policy, and alternative housing strategies, on national carbon and biodiversity goals. Using material flow and land use change/biodiversity models, we estimate from 2022 to 2050 under current policy housing alone would consume 104% of England’s cumulative carbon budget (2.6/2.5Gt [50% chance of < 1.5 °C]); 12% from the construction and operation of new-builds and 92% from the existing stock. Housing expansion also potentially conflicts with England’s biodiversity targets. However, meeting greater housing need without rapid housing expansion is theoretically possible. We review solutions including improving affordability by reducing demand for homes as financial assets, macro-prudential policy, expanding social housing, and reducing underutilisation of floor-space. Transitioning to housing strategies which slow housing expansion and accelerate low-carbon retrofits would achieve lower emissions, but we show that they face an unfavourable political economy and structural economic barriers.

Highlights

• The primary government response to England’s housing affordability crisis is to build 300,000 new homes per year
• Using embodied and operational emissions models we find this strategy consumes England’s whole cumulative carbon budget [1.5 ° C] by 2050
• Other strategies for meeting society’s housing needs are theoretically possible, but they face a challenging political economy
• ‘Growth-dependencies’ in the housing sector mean social welfare risks de clining if house prices and construction rates fall
• Solutions include reducing demand for housing as financial assets, disincentivising overconsumption of floor space, and retrofitting

Further Reading