Across Nigeria, a quiet revolution is unfolding in how property is understood and managed — not through paper ledgers and periodic inspections, but through living digital maps that bind location, history, and context into a single, queryable truth. Geographic Information Systems are offering estate surveyors a way to see what traditional tools could never reveal: the patterns beneath the surface of a rapidly urbanizing, environmentally stressed landscape. The technology does not merely modernize a profession; it reframes the very meaning of knowing where something is and what it is worth.