Adds factory buildings you can walk into and build parts of your factory inside. This mod will not be updated for Factorio 0.15! Get Factorissimo2 instead, it's much better.
For a technology with such a game-changing effect, 50 red+green seems very cheap. Something in the order 200-500 wouldn't seem unreasonable, and I would require blue science since the buildings understand fluid handling.
Or, you could split the research into two tiers, the 2nd tier requiring blues and adding a liquid-enabled building.
The reason I made this technology available so early is that people can start putting their things into buildings relatively soon. What's the point in having to build a large base to research architecture just to pack everything up again later?
Also yes, tiered buildings will happen in future updates.