COR-TEN steel stairs, Stoke newington. London. by Amir | Nov 14, 2014 | Uncategorized | 0 comments Bespoke COR-TEN steel stairs leading from upper ground floor flat to the back garden. Integral flower boxes in an ad-hoc formation allow vegetation to grow along the the structure. Design proposal for a private client, Stoke Newington. UK. 2014.