Notting Hill Community Church, London

In Kensington Park Road I found this church, quite a large cruciform building with some unusual detailing inside to the arcades. It was built for a Rev. Marchmont, a ritualistic CofE clergyman, who was declared bankrupt in 1871. The incomplete building was sold to and completed by a Presbyterian congregation, being known as Trinity Presbyterian Church until 1919. Since then it has been an undenominational church, known also as Peniel Chapel and now with its present name. It was open and in use by two different groups, but people seemed happy for me to look around and take photos. The south aisle and transept have been divided off. How would you describe the style of the arcades? Byzantine?