Attached is a practical example of a Space Yard Expansion. In Adamant, Space Yard Expansions increase the build rate of only a single resource (so there are 3 different types), but that is not strictly necessary.
Note that the base project comes after the SYE that have the SY ability. This causes the Project to appear in the list when Show Only Latest is selected, but it will still upgrade properly. No need to have to constantly switch between showing and hiding "obselete" facilities this way.
Also, note that it has 1 for an ability for the organic and radioactives build rates. If you have a SY rate of 0, an infinite amount of resources can be put into the build project per turn; as long as you can afford it, you can build
anything in a single turn (if all 3 rates are 0).