Stanway scrambled home our second before half-time and White added a third with a deft header from Alex Greenwood’s corner.
Lavelle completed the scoring 19-minutes from time as she capitalised on Maz Pacheco’s slip before calmly lofting the ball over Hammers’ goalkeeper Mackenzie Arnold.
City’s fifth consecutive league win extends our unbeaten run to eight games and there was further cause for celebration as Aoife Mannion made her return off the bench after 15 months out due to an ACL injury.
Match report: City 4-0 West Ham
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