French to English Tech/Engineering Architecture

Target=uk

This is the title of an article that talks about unintrusive urban planning. For this you need to survey all the imperceptible elements that make up a territory's past. i.e. the imprints of an old farm, a spring that has been knocked down, a forgotten path, etc.
The author refers to these as ordinary and sometimes trivial elements which make up the inner matrix of a territory.

Obviously making a parallel to Patrimoine, he refers to this as Matrimoine.

I cannot think of a way to express this, since Matrimony, is obviously not possible.

Any ideas?