Intensifies means improves for those other buildings.

I.e. Intensifies hope production +1 within 1 tile means adjacent hope producers generate 1 extra hope when this building is running. (I can't remember the exact format for the wording, but that's what it does)

"Intensifies" different from "+4 if Nature building within 2" in that it gives the bonus to the other building, not to itself.

Originally posted by Gamer7956:

I.e. Intensifies hope production +1 within 1 tile means adjacent hope producers generate 1 extra hope when this building is running.

The intensifier doesn't have to be running; only the building receiving the effect has to be running.

Originally posted by Manxome:

The intensifier doesn't have to be running; only the building receiving the effect has to be running.

Unless something happened during a patch, since patch 1.1 the Intensifier should be running too for it to count

Well, I won't swear that I've tested this since patch 1.1.

Yes in my playthrough right now, the intensifiers I ve encountered need to be active (meaning with pips actively working in them) for the intensifying effect to take place.
This is not true for buildings getting bonuses from adjacent buildings (like +4 if nature building within 2), it happens even if the adjacent building is empty.

Thanks.

So, when the intensifier building is active with a worker working, it provides +1 of the relevant resource to related buildings within 1.

What is the range of the intensify effect? For example, Performer's Stall says Intensify Hope, but doesn't say how far away it applies to. Or how much it increases by.

The power and range aren't in the text description but they are shown in the iconography (they're both 1).

https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3403547909