Indago is an Islington based estate agent with a variety of properties for sale, including flats and houses in EC1 and N1. Keep an eye on our blog for some great content. Find out About Indago - an Islington based independent estate agent with a variety of properties for sale, including flats and houses in EC1 and N1. Indago is a lettings agent with properties available to rent around EC1 and N1.