from the Netherlands and Belgium:

LIEGE -motorway (A26) (E25) direction ARDENNES - BASTOGNE - junction Nr 54 (Bastogne-Diekirch) - following direction DIEKIRCH (Ettelbruck) - arriving in HEIDERSCHEID - round-a-bout - 1rst right - direction ESCHDORF - 1rst left - direction MERSCHEID - then 2nd house on the right side.

from France: 

THIONVILLE - motorway (A31) (E25) - direction LUXEMBOURG - then direction BELGIUM (Bruxelles - Arlon) - junction Nr 3 (BRIDEL) - then KOPSTAL - traffic lights on the right -direction MERSCH - then direction ETTELBRUCK - in Ettelbruck following direction BASTOGNE - going through FEULEN - HEIDERSCHEID - at the end of HEIDERSCHEID - round-a-bout - direction ESCHDORF - in ESCHDORF - first left - direction MERSCHEID -then 2nd house on the right side.

from Germany:

TRIER - motorway (A64) (E44) - direction LUXEMBOURG - junction Nr 13 (Grevenmacher-DIEKIRCH) following direction DIEKIRCH - then ETTELBRUCK - in Ettelbruck following direction BASTOGNE - going through FEULEN - HEIDERSCHEID - at the end of HEIDERSCHEID - round-a-bout- direction ESCHDORF - in ESCHDORF - first left - direction MERSCHEID - in Merscheid 2nd house on the right side.