 Currently CIH has over 17,000 members, mostly in the UK but also overseas, notably in Hong Kong.CIH's current Chief Executive is Gavin Smart.The CIH traces its organisational roots back to the philanthropic work carried out by pioneers such as Octavia Hill, in response to the revelation of the appalling housing conditions endured by much of the population in the 1884-1885 Royal Commission on the Housing of Working Classes.