Modular Building

everybody know it. You desperately need to build something, but you dont have the right resources. Because for every building you need exactly the same resources over and over. But hey, wait! Who said you cant replace some construction blocks with cheaper variants (lower tiers) or literally different sort of material? Is it really necessary to build trade dock with wood? Or why do i need to build large storage with red building blocks only? It seems that it is mostly iron/steel.
My suggestion is to implement something that any other game in this genre doesnt have. Customizable cost of buildings. Example of this:
Your Electronics production is really behind, so you dont have enough yellow building blocks. You can replace some portion of building blocks (lets say 30-80%) for other construction materials (lower tier, iron, steel, whatever..) but for every percentage of cost you "makeshifted" the building will get some drawback (higher maintanance, lower efficiency, etc.).