Qualidental Laboratories (Pty) Ltd owned property in Mossel Bay on which stood two structures older than 60 years: a villa and an annex. In terms of the National Heritage Resources Act 25 of 1999 (NHRA), it applied to Heritage Western Cape (the provincial heritage resources authority) for a permit to demolish both structures to develop an apartment block. Heritage Western Cape approved demolition of the annex but refused demolition of the villa, which it regarded as having intrinsic and contextual heritage value. The demolition permit was granted subject to conditions, including that any new development plans be submitted to Heritage Western Cape for approval. The appellant’s building plans were later rejected by the authority as inappropriate and intrusive. Despite this, the appellant commenced construction, leading a heritage inspector to issue a stop works order. Qualidental challenged the authority’s power to impose the condition and the validity of the stop works order.