Building cards are played from your hand to the bottom row of your player area, next to your Starting cards. They cannot be activated. Instead, when the Building card’s owner meets the condition listed at the start of the text, they immediately resolve the effect.

For example, the Telegraph Office triggers whenever you activate your Nest.

The effects of some Building cards do something specific (e.g., Draw 2), or modify whatever you are currently doing.

Building cards with conditions that trigger when you play a Building card do not trigger themselves, as they are not in play yet.

Resolving the effect of a Building interrupts whatever action or effect is currently being resolved. Once done, continue from where you left off.