Can you still build the older buildings once you unlock the newer ones

tropico-4

I'm playing sandbox mode in Tropico 4 with the modern times buildings enabled, and as time goes on I keep unlocking more of then.

My questions is once I unlock a certain building, such as the solar power plant, can I still build the thing it replaces, such as the wind turbine?

Best Answer

After some research, I claim that this is impossible. Which makes sense, actually, since the newer buildings should always(?) be preferable.

In case of wind turbines, they are insanely expensive to maintain while delivering only a small amount of power (even on very high ground).

However, I am not certain about the 1-time-only buildings like the Skyscraper hotel, compared to the best other available hotels.