This paper examines the connections between uneven development and sustaina
ble development, focusing on the British land use planning system where ten
sions are emerging between 'environment-led' and 'balancing' interpretation
s of sustainability. The key argument is that the spatial dynamics of uneve
n development are an integral component of these tensions, and their reconc
iliation, as sustainable development is interpreted through planning proces
ses in different localities and at different levels of governance. This per
spective is developed by examining British minerals planning policy and the
conflicts generated by the Lingerbay superquarry proposal on the Isle of H
arris. While the UK Government has sought to use the planning system to fin
d a politically acceptable 'spatial fix' for aggregates production, rather
than manage resource demand, presumptions about uneven development which ap
parently underpin this policy are being challenged, not least for their equ
ity implications. Interpreting sustainable development in ways which are se
nsitive to different contexts and the connections between them remains a ma
jor challenge.