A news alert from the American Embassy, recopied here for practical purposes.
"Important Notice Concerning U.S. Citizen Services
After many years at the Talleyrand building, the Consular Section of the U.S. Embassy in Paris is moving to a new location. During the move, services will be limited to emergency cases only on Wednesday, May 9; Thursday, May 10; and Friday, May 11. The Embassy will be closed for all services on Tuesday, May 8 which is a French holiday.
To avoid delays, U.S. citizens who need routine services that require a personal appearance, such as notarization of documents and applications for birth reports and passports, should plan to avoid coming May 9-10-11 since only emergency services will be provided. Emergency services include applications for lost and stolen passports which will continue to be accepted throughout this time if proof of imminent travel is presented.
Our new address starting Monday, May 14 will be in the main Embassy building located at Place de la Concorde. Access for consular services will be at a special entrance at: 4, avenue Gabriel, 75008 Paris. The métro stop remains the same: Concorde.
As of May 14, all consular services, including by-mail passport applications, will be available at our new address:
4, avenue Gabriel
75382 Paris Cedex 08
Tel: 01 43 12 22 22
We look forward to providing consular services to U.S. citizens in France at our larger, more modern consular section.
If you have questions concerning American Citizen Services at the consular section, please write to us at the following email address: Citizeninfo@state.gov "