Solum Regeneration is a £500m joint venture between Network Rail and Kier Property established to bring private investment into the rail network by generating funds from the development of under-used railway land. Solum has a track record of delivering regeneration schemes on railway-owned sites. It has completed projects at Christchurch, Epsom and Walthamstow, and has recently started work on a project at Haywards Heath. It also has secured planning permission for major regeneration projects at Twickenham and Redhill.