Unless these people are living in tents, they will need houses. They may not be buying their own place, but they will need housing somewhere, probably in houses purchased by councils or private landlords.
Also, not all immigration is from destabilised homelands. For instance, the people taking up H1B visas or similar.
Also, not all immigration is from destabilised homelands. For instance, the people taking up H1B visas or similar.