TBD is an RIBA-chartered architecture practice and design co-operative focusing on the transition to an equitable and convivial low-carbon society through strategic design and social change practice. TBD aims to provide benefit to individuals, communities and organisations engaged in this transition. Transition by Design' is the trading name of Transition by Design Cooperative CIC. It operates under the ICA principles for Cooperatives and is registered with Companies House and the Community Interest Company Regulator. Company Number: 9664511