Founder partner of the office “Guillermo Hevia y Cia Arquitectura” in 1993, dedicated to the architectonic design in different areas such as industrial, services, corporate, housing( in height, social, single and collective), educational, and national and international advising in bioclimatic and maintainable architecture. Research and development of new maintainable architectural proposals incorporating bioclimatic techniques (geothermic, aeolic, to get natural A.A.), searching energy saving and environmental protection (Founder partner of the office Biotech Chile Consultores Ltda). Pioneer in solutions for big industrial plants , he has been granted national and international awards. Many of his projects have received prizes in the Bienal de Arquitectura de Chile (Chilean Architecture Biennale) and in Latin America, being his works also published in specialized magazines and books in Chile, Latin America, Europe and Oceania.
His work innovates in the use of new technologies (Prize Fermin Vivaceta 2005) such as steel and glass, proposing different solutions according to technical and economical conditions. He has also researched in development and design of new metallic linings for architecture together with the company Hunter Douglas-Chile (preformed steel panels; Colordek 408, curved panel, Software and Sándwich-wall). Among his works ; Unifrutti Traders, Sika Chile S.A., Wenco S.A., BMW- Williamson Balfour Motors S.A., Viña Terramater, Panificadora Castaño, CD Farmacias Ahumada S.A., Edificio Chilexpress S.A., Derco S.A., Planta Cristalchile Llay-Llay, Edificio Candelaria, Import. Alsacia Ltda., Almazara Olisur S.A.. CD Farmacias Benavides – Monterrey-Mx., Edificio Nestlé Graneros, Edificio y CD CAM-Enersis.
Teacher at the Universidad de Chile (University of Chile), on 5th grade Workshop subject and Diploma and invited Professor at the “Taller Internacional Cartagena de Indias – U. de Los Andes (Colombia)”. He gives lectures and conferences in national and international Seminars and Congresses.
Director of the “ Colegio de Arquitectos de Chile and AOA” ( Architects Association of Chile and Association of Architects Offices).