This companion piece would explore the significance of the Pergola's Grade II* listing, a designation given to just 5.8% of listed buildings in England. The article would explain the three tiers of listed building designation – Grade I for exceptional interest, Grade II* for particularly important buildings of more than special interest, and Grade II for nationally important buildings of special interest. The piece would contextualise the Pergola within the broader heritage landscape of Hampstead, explaining why its Edwardian design, 170-metre-long raised walkway, stone balustrades, and wooden trellising merit such high protection.