Sections B, C and D are to be filled out by occupied households.

Question B.3

When was it built?

One of suggested date should be mentioned as an answer. Moreover, while determining the date of the building (house), the date is chosen when the house (building) was put in use.
While answering for the questions B.3, B.4 and B.5 of the questionnaire for the households living in flat of the tenement house, information available from the state statistical reporting form "1 - Housing conditions" should be used.
For example; if the building of the house began in 1979 and was finished in 1981, then the "1981-1990" prompt is written, the date when the building was completed. In case of rebuilding the house or adding more floors the date when it was out in use is considered to be the original building year.