Development Service at Extension Architecture At Extension Architecture we have much experience in dealing with large-scale development projects. From creating 2 dwellings to 9+, we can consult you with the optimal solutions and advice which would financially be of more gain and feasible planning wisely in our development service. Our developments are designed and built to the highest standards. Extension Architecture stands for intelligent and creative development. Our developments make a positive contribution to London, both directly and indirectly.With development projects we work closely with the client to communicate ideas and solutions. We provide schemes and layouts to demonstrate to the client the potential development and feasibility. We are committed to ensuring customer satisfaction and loyalty. There are multiple routes in which we can advise the client on how to proceed; and with our years of experience in development, Extension Architecture are more than welcoming to hear your proposals and innovative suggestions which you may have.