From 27C3 public wiki
Andels
The Andels Hotel offers a special rate for 27c3 visitors also.
Prices:
Double private (single occupancy): 80 EUR
Double private (double occupancy): 90 EUR
All prices are including breakfast, access to the wellness area, service and taxes.
For more information see http://www.andelsberlin.com/en/home/
Contact
Landsberger Allee 106, D-10369 Berlin
E-Mail: info@andelsberlin.com,
Tel.: +49 30 453 053 0,
Fax: +49 30 453 053 2099
Please ask for the 27c3 Offer.