He is an Associate member of the Sri Lankan Institute of Architects as well as the Royal Institute of British Architects (RIBA) having graduated and worked in the UK. He is the Chartered Architect (Principle Design Architect) and Director of Kahawita De Silva & Associates (Pvt) Ltd, which is a leading design firm providing consortium services not limited to Architecture, Engineering, Urban Planning, Interior Design, Quantity Surveying and Project Management. The firm is on a legacy of three generations and been in the design industry for more than 40 years. He has an array of experience having worked in the UK, Singapore, Malaysia, India, Maldives, Norway and Sri Lanka. The firm is a proud recipient of numerous awards over the decades of successful practice.