STA Team Potrait 2020

Senyo Website Portrait_Low SaturationSenyo A. Tetteh

Principal Partner


Senyo A. Tetteh founded S. Tetteh + Associates(STA) in 1990 at the tail end of an eight-year stint of architectural practice in London, UK. Since relocating to Accra, Ghana and registering the company in 1995, Senyo has led the firm in building an extensive project portfolio that reflects both public and private sector experience.

With a focus on modern, well-considered design and international standards of practice, Senyo has overseen STA’s rise to notoriety in recent years following a series of wins at local and international design competitions.

The story of STA continues to evolve, as does Senyo’s role in it. Today, as Managing Director, he provides the practice with vital strategic direction while ensuring that the team remains committed to the tenets on which it was founded. He also plays the all-important function of being the firm’s chief advocate beyond its walls.

Alex Low SaturationAlexander Sosu



Alexander Sosu was appointed in 2004 as a young but capable architect to help bring about the fundamental changes necessary to respond to STA’s growth agenda.

He has since progressed to Partner of the firm while developing into a highly skilled Designer and adaptable Contract Administrator with experience in overseeing building projects from start to finish.

As Head Designer, Alexander played a key role in four (4) of STA’s successful architectural design competition entries; including the last three (3) competitions organized by the Architects Registration Council of Ghana.

His strong strategic vision and ability to harness the strengths of a team and systems in order to achieve objectives have been an invaluable part of the firm’s recent success.

Alexander has a keen interest in research into contemporary practice and growth of the profession.

Augustine Low SaturationAugustine L. Owusu-Ansah



Augustine Owusu-Ansah joined S. Tetteh + Associates in 2012 and has since worked primarily on design and construction supervision of STAs projects. He has been heavily involved in the Advantage Place 12-storey office building project, Records Centre for Ghana Revenue Authority  and the competition-winning entries for the Judicial Training Institute, Ghana School of Law Campus and South Legon Apartment Development. He also manages visualisation and graphical presentation at STA and has a keen interest in the study and design of public space and exploring Ghanaian architectural identity.

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Davida Obeye Ammah

Associate Architect


Kingsford Website Portrait_Low SaturationKingsford Odame

BIM/CAD Technician


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Maxwell Darteh

Assistant Architect