Coincidentally, I came across a Corona Discounted Course on Architectural Drawings with water colour and realised that my paintings and work have an architectonical flavour to them too.
This I attribute to our "biological seeing": Our seeing and perceiving space has a very spherical geometry to it. We naturally perceive perspectives and "recognise buildings" for their unique projections and proportions.
In non objective art, as in concrete art, there have been many architects who have played an important role in the propagating the ideas: notably Theo van Doesburg, Le Corbusier, Walter Gropius and many others from the Bauhaus movement.
I enjoyed reading this article on Architecture and Non Objective Art.