As ecclesiastical architecture transformed from one style to another, a number of factors were
identified to have influenced their development and many studies argued that one determinant or the
other should predominate. Among these determinants five of them that influenced the development
of ecclesiastical architecture in Nigeria were explored. These determining factors were classified as
Existing Building Materials and Current Architectural Style, Basic Theology and liturgy, Free
Expression of Styles and the Knowledge of the “Masters”, Moving with Time Like Evangelical
Way, and finally Church Building is Heresy and Apostasy. As this study is theoretical and historical
in nature, qualitative methods were employed to gather the data and the data were analyzed by
description. This study found out that all these determinants were prevalent at different times during
the three phases of the development of ecclesiastical architecture in Nigeria. Two or more of these
factors were identified determinants during the same phase. This study concluded that no particular
factor predominated throughout the three phases of ecclesiastical architecture in Nigeri
