The first appellant, a ratepayers’ association, and the second appellant, PS Booksellers (Pty) Ltd, objected to building works undertaken by the first respondent, Harrison, a property developer and neighbouring landowner in Camps Bay. The City of Cape Town approved Harrison’s original and subsequently revised building plans under the National Building Regulations and Building Standards Act 103 of 1977. Earlier approvals were successfully challenged by the appellants through an interdict and an internal appeal under s 62 of the Municipal Systems Act, primarily on the basis that certain retaining walls contravened restrictive title deed conditions and artificially altered ground levels to disguise excessive building height. Harrison later submitted a further revised plan (Plan 506011), which removed the offending retaining structures and fill. Despite objections from the appellants, the municipality approved this plan. The appellants applied to the Cape High Court to review and set aside the approval, alleging non-compliance with zoning and title deed restrictions and procedural unfairness. The High Court dismissed the review. The appellants then appealed to the Supreme Court of Appeal.