The Bundesjustizministerium has put an English translation of the German Civil Code online. It was done by Langenscheidt Übersetzungsservice.
The same provisos apply as in the last entry with reference to translations of the Criminal Code!
I wonder if I can agree with Prof. Dr. Ulrich Noack‘s description of this translation as ‘official’. People are always asking for official or standard translations of statutes. But I prefer to avoid the term.
There is already a translation online at the German Law Archive of the new parts, mainly Book Two. That has the great advantage of having the German and English on the same page.