That pole is certainly eye-catching!Am admiring the Grafton Bridge Flats, that signwriting looks like it's Art Nouveau style, I'm surprised the flats are so plain, otherwise, or have decorations been removed?
The land that the building is on used to belong to the Wesleyan School (which shifted in the 19th century from Grafton to Three Kings but kept the land as an endowment asset). Archives New Zealand show a record for a "Grafton Bridge Flats" company (1924-1966 -- BBNZ, Series 5181, closed company files) and Wises Directories show that they're there c.1925. It was built within the Art Deco period, but it could be possible that it relied more on exterior paintwork picking out the few details in the centre than anything else.
My great grandparents Minnie Ruth and Richard Wilkinson lived here about 1926.Minnie died here at #8 on March 2nd 1926.