Interviewer instructions
3.3.3. Question 3: Year the construction was finished.
This information is very important.
You will be obtain it by questioning the owner, the concierge, the people who have lived in the house for a long time, the neighborhood or the community. Some buildings bear the year of completion engraved on the side.
For the four first sections, it often suffices to know the date of completion within a certain number of years in order to answer without it being considered an error. In the absence of direct information, you will sometimes be able to classify buildings by comparing them to others, typical with some time periods. City hall might be able to tell you if, in your district, there some important apartment building complexes constructed in well- determined time periods.