Complex sentence: Adjacent to the bank was a three storey office for T.B. Gillies which now saw Mason flourishing forth with a contrastingly exuberant and delicate Venetian design with paired arcaded windows on the upper floors, and sculpted heads over the columns.
Split into simpler sentences: Adjacent to the bank was a three storey office for T.B. Gillies which now saw Mason flourishing forth with a contrastingly exuberant and delicate Venetian design. It had paired, arcaded windows on the upper floors and sculpted heads over the columns.