Since the company registration two events have happened. The last two records are Registered office address changed from 869 High Road London N12 8QA United Kingdom to 1 Kings Avenue London N21 3NA on 28 December 2016; Incorporation of a limited liability partnership. The most likely internet sites of SIENNA HOUSE LLP are www.siennahouse.co.uk, and www.sienna-house.co.uk. The predicted number of employees is 1 to 10. The company’s age is nine years and five months. Sienna House Llp is a Limited Liability Partnership. The company registration number is OC412691. Sienna House Llp has been working since 11 July 2016. The present status of the company is Active. The registered address of Sienna House Llp is 1 Kings Avenue London United Kingdom N21 3na. . CARROZZO, Jennifer is a LLP Designated Member of the company. CARROZZO, Mario Joseph is a LLP Designated Member of the company.