[7] By a deed dated 18 January 1599, Platt endowed two charities, the grammar school and six almshouses,[1] with land at Aldenham and some twenty acres of pasture at St Pancras, and woodland there, placing the endowments in the care of the Worshipful Company of Brewers.
Platt died on 28 November 1600[1] and was buried on 4 December at St James Garlickhythe, London.
[8] In his will, Platt provided for the Brewers’ Company to pay the boys of his new grammar school beer money, as the water was not safe to drink.
[3] Pupils at Aldenham School continue to visit Brewers' Hall once a year to receive £5 each.
[1] Platt's coat of arms was blazoned "or fretty sable plattée", with a crest of "a demi-lion rampant proper holding in the paws a plate".