Under the provisions for mandatory social housing relief in the Community Infrastructure Levy Regulations 2010 (CIL Regulations), SI 2010/948, reg 49, a chargeable development comprising qualifying dwellings or qualifying communal development (in whole or in part) is eligible for relief from liability to Community Infrastructure Levy (CIL) and a qualifying dwelling is one that satisfies at least one of six conditions specified. Condition 2, under CIL Regulations, SI 2010/948, reg 49(4), contains various elements, including that the dwelling is occupied in accordance with shared ownership arrangements within the meaning of section 70(4) of the Housing and Regeneration Act 2008 and the percentage of the value of