What is first step home? Founded in 1993, First Step Home is a treatment center located in Walnut Hills, a suburb of Cincinnati. Established as a women’s only facility, First Step Home is the only addiction treatment center in Cincinnati allowing children, up to the age of 12, to live with their mother’s while they are in treatment.How do i get more information about the first step center? For more information on The First Step Center, please contact us or call 716.285.3421.Where is the head office of step? STEP Head Office. Artillery House 11 - 19 Artillery Row London SW1P 1RT United Kingdom. View on map. Tel: +44 (0)20 3752 3700