Not sure if there was more than one greengrocer's on Tottenham St, or if John PEART had ceased business there by 1834. On 29 April 1834 there was advertisement for a cook at "Mr Mann's, Greengrocer, Tottenham-Street, Fitzroy-Square" (Morning Post, Monday, April 29, 1834), and also a fire on 23 December 1842 at the premises of "Mr Hibbert, greengrocer and fruiterer, Tottenham Street" (The Age, Sunday, December 25, 1842)
Maybe more than one, as John was still there in the 1841 and 1851 census.