Livre d'Or

Replying to this when I'm not at work, and can check my siddur...

The service is in the Singer's after all. Dr Sacks says in his commentary:

No formal ceremony for the consecration of a house is mentioned in the early rabbinic literature other than saying Shehecheyanu [...] and the blessing on fixing the mezuzah. The current ceremony is part of long-standing Anglo-Jewish custom. A service for the consecration of a house was compiled by Chief Rabbi Solomon Hirschell; another was compiled by Chief Rabbi Dr Hermann Adler, which is the basis of the present text.

Ah well, something to remember for next time I move house.