Many Berlin Civil Registration documents have been indexed on Ancestry.com.
Links to downloads of available civil regiatration records: https://landesarchiv-berlin.de/informationen-und-formulare-zum-download
Link to Standesamt Indexes available at the Landesarchiv in Berlin : http://www.landesarchiv-berlin.de/#. Click on Click on Bestände [Holdings]; then click on "Personenstandesunterlagen". Then click on Recherche in den Namenverzeichnissen der . . . (3) Type in the name of the Standesamt in the search box. For example: "Berlin" or "Charlottenburg".
Sonja's Civil Registration book on FamilySearch: https://www.familysearch.org/library/books/records/item/536519-redirection
Link to Civil Registration offices in Berlin: https://landesarchiv-berlin.de/familienforschung-im-landesarchiv-berlin
Civil Registration records for Berlin and suburbs for early time periods are available on Ancestry.com
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Civil Registry offices in the Berlin area and laws relating to Civil Registration with links to holdings and procedures to follow in obtaining civil registration documents:
Berlin Civil Registration documents can be ordered from the Landesarchiv Berlin at this site: http://landesarchiv-berlin.de/# Click on Bestände [Holdings]; then click on "Personenstandesunterlagen". For an overview of the holdings of civil registration documents housed at the Landesarchiv click on "Standesamtsbeständen". Use this form to order civil registration documents from the Landesarchiv Berlin.