The question of do you need sprinklers in your condominium comes up all the time.
I wish I had the answer. The answer lies with you, and also with the law. If you feel that it is in the best interest of the safety of the condo unit owners, then you need them. If it is the law, then you need them.
The laws are all over the place. From what I see, they are very specific if you have new construction and or doing a major renovation. Check with your local building inspector before going forward. This can be expensive.
If you are renovating, you might find that the local codes require you to add the sprinkler system in your condo. If so, and you feel that it is not right, you can appeal in most areas.
The appeals board will look at the law, and whether it is reasonable to ask you to do this. If the renovation is for $10,000 and it would require a $60,000 investment in a sprinkler, is that reasonable?. Can it be done? If the project does not include opening the walls, then it may not be reasonable to ask you to do it.
The law looks at standards. The standards are not the same for a 1-3 unit condo as it is for a high rise, and the standards of a nightclub are not the same as a condominium complex.
Good luck! remember to check your local laws.