I’m going to go out on a limb and say there is no “style” in an architectural sense that you would ascribe to this house.
This looks to me like a perfect example of purpose-built vernacular used to sub-urbanise many cities and towns across the capitalist world. Vernacular in the sense it is part of the typical fabric of places all over and not particulary definable by a style or designer.
Back in the 70s there were many “cookie-cutter” developments that reflect the philosophy of the society. Much like the Eastern Bloc is typified by rows of tower blocks all of the same plan and elevation as social housing, the US and Canada built suburbs to support the auto-narrative of cities with streets upon streets of “family homes” all with a near-identical plan.
Per your own comment, I wouldn’t worry about matching any mouldings, personalise the renovation to give it some character and set the internals apart from your neighbours.
