Across the protected landscapes of Britain, a quiet but persistent truth is being measured in pounds and percentages: people will pay dearly to live where nature has been deliberately preserved. A study by Nationwide reveals that homes within national park boundaries command a 24% premium over comparable properties elsewhere, a figure that has held remarkably steady year on year. This is not the fever of speculation but the settled arithmetic of desire meeting scarcity — beauty protected by planning law, and priced accordingly.