Mr. Gathecha is an architect by training and practice, nominated to NCA by the Architectural Association of Kenya (AAK). He is the managing partner of the architectural firm Waweru Associates Architects, based in Nairobi. He has undertaken projects in the United Kingdom, Kenya, Rwanda and South Sudan. He graduated with a degree in architecture from the University of Nottingham, United Kingdom, in 1998 and is a Fellow of the Architectural Association of Kenya (AAK) and a Corporate Member of the Royal Institute of British Architects (RIBA). He is a Board member on the Board of Registration of Architects and Quantity Surveyors of Kenya (BORAQS). Mr. Gathecha is a past president of AAK and a past council member of the East Africa Institute of Architects, Africa Union of Architects, and International Union of Architects. He has also served the Commonwealth Association of Architects as a validation panel member; in this capacity he has been involved in the validation of architectural education course outcomes at schools of architecture across several African countries. He has also served as a Sector Board Chairperson at the Kenya Private Sector Alliance (KEPSA).