Bisayo Properties (UK) Ltd was formed in 2004 by Tayo Aluko of Aluko Brooks Architects. This was as a result of his thinking for some time that a company set up specifically with the design and construction of ecological buildings as its raison d'etre would be the ideal client. Rather than going out looking for that dream client, he decided to become that dream client.www.alukobrooks.co.uk59 Seel St, L1 4AZ

Established in 1918 by Liverpool Architect Herbert J Rowse, few practices surviving today can boast a heritage equal to the work of Rowse who produced some of the most notable and prestigious buildings of that era. These include the first Mersey Tunnel, Liverpool University School of Pharmacy and the Liverpool Philharmonic Hall, thought by many to be the finest concert hall of its time.www.brh-architects.co.ukMartins Building/4 Water St, L2 3TY

Operating for the last 10 years from a Liverpool base we have been instrumental in changing the face of the city and we now enjoy a national reputation and client base. Our team has an enviable mix of expertise and experience. Working collaboratively with planning authorities and consultants we ensure that every stage of a project runs smoothly, to realise the design vision.www.falconerchester.co.uk12 Temple St, L2 5RH

We take an intensely client-focused approach to our work, and have been very successful at creating and releasing asset value for our clients, often in difficult, challenging circumstances. Since its founding in 1983, the Practice has focused on finding ways of meeting human demands on land which conserve rather than exploit the earth's natural resources. This is the essence of sustainable development.www.cassassociates.co.ukStudio 104/82 Wood St, L1 4DQ

BDP is a multi-discipline practice of architects, designers and engineers, aiming to provide comprehensive, integrated design services for the built environment. We were founded in 1961 by the late Professor Sir George Grenfell Baines. Our mission is to be collaborative, working in partnership with customers, colleagues in construction and the communities we impact.www.bdp.co.ukSt Peters Sq, L1 4AS

Our vision, expertise and professionalism ensure that we offer innovative solutions, whilst responding to all technical and commercial considerations and allows us to retain a position of trust with clients, resulting in frequent repeat commissions.www.afl-uk.com1 Old Hall St, L3 9HF