The service standard in place for applications received on or after April 1, 2015 is that about 80% of those are processed within 12 months.
If someone receives a residence questionnaire, it becomes a non-routine application that is not then subject to that service standard. It's impossible to say exactly how long that will take. Obviously we do our best to process those as quickly as possible.
Sometimes as a result of the residence questionnaire information, an officer is able to determine that they do meet the residence requirement and the case will proceed. However, there's still a belief that if the applicant doesn't meet the residence requirement after reviewing all of the information provided with the residence questionnaire, then the individual would need to go for a hearing with the citizenship judge.