My house (brick ranch w/basement, purchased last November) was built here in Metro Atlanta in 2005. The basement has, what some realtors call "a boat door." (a single-car sized roll-up garage door) and opens up to a concrete driveway that 'U-turns" backs to the main driveway and a typical two-car garage.
During the PPI, both the inspector I looked up into the boat door interior space, and saw two sprinkler heads

Can anybody tell me why these two sprinklers are required?
The previous/original owners told were the sprinklers were required 'by code'" Really? Why only in the boat door space? Or something to do with that space is the only one unfinished (no finished walls or ceiling)?
Not sure if these other features are related:
* Two HVAC units, one in basement, one in attic
* Central vacuum system
* Basement ceiling is all drywall (not a suspension type).