rounding to 3 significant figures in storehouses, etc.

[Hazgod]

Or better add that accurate time in the (mouse-over) tooltip..

I'd say it's better to just be there instead of in the tooltip

[MCLueppers]

How about to allow to move Storehouse and Improved Storehouse??? Have made not good decisions positioning my storehouses, but now can't move them, because it's not allowed...

Actually you can move them by demolishing/rebuilding them on the correct place. This technique is valid for some "special" buildings as-well

[SmurfAsH]

I'd say it's better to just be there instead of in the tooltip

Try to also get the numbers of days to fit in what you suggested..