The　COVID-19　pandemic　has　significantly　altered　urban　noise　perception,　with　prolonged　lockdowns　in　China　producing　lasting　effects　on　residents＇　noise　experiences.　This　study　examines　the　spatiotemporal　evolution　of　noise　perception　and　its　relationship　with　green　space　distribution　in　Hangzhou,　China,　using　six　years　of　noise　complaint　data　from　2018　to　2023.　Findings　reveal　a　dynamic　trajectory　of　noise　complaints:　initial　diffusion,　intensified　agglomeration　in　core　areas　during　lockdowns,　followed　by　re-diffusion　post-restriction.　Residential　areas　exhibited　the　highest　noise　complaint　levels,　driven　by　dense　urbanization　and　insufficient　green　infrastructure.　Spatial　analyses　showed　that　green　space　construction　in　new　urban　areas　more　effectively　mitigated　noise　complaints　compared　to　older　urban　areas,　with　core　regions　benefiting　more　than　peripheries.　Larger　green　spaces　were　particularly　effective　in　reducing　complaints,　while　transportation　noise　remained　the　dominant　source.　Geographically　weighted　regression　highlighted　spatial　heterogeneity　in　green　space　impacts,　highlighting　the　influences　of　urban　form　and　land　use.　These　findings　underscore　the　importance　of　integrating　green　space　planning　with　noise　mitigation　strategies,　particularly　in　high-density　urban　cores　and　transit-adjacent　zones.　Building　on　these　insights,　this　study　proposes　targeted　strategies　for　enhancing　urban　noise　management.　©　2025　Elsevier　Ltd