In the field of new housing, guarantees usually fall into two categories : obligatory or optional.
Obligatory guarantees (GCR) cover single-family houses, co-ownerships of at most 4 units as well as multi-family houses (duplex, triplex, etc.) including 5 units or less.
Optional guarantees, on their end, are provided by multiple associations and usually cover larger buildings.
For further information, please visit the All about the warranties on new houses help tool.