Buildings without streets

[Matrickz]

Other than the builder hut what doesnt require street access (and dont include stuff for guest race)

 

[Deleted User - 4646370]

Cultural buildings (except those which produce mana after chapter 9), and event buildings that don't produce anything don't need road connection.

 

[nightrider1]

you can also isolate resident if you dont need the coin

 

[NightshadeCS]

If you import your city into ElvenArchitect, you can select a setting that will show exactly what buildings in your city require a street connection and which don't.