From Amsterdam (A4)

Take exit 8–Leidschendam toward Ring N14, direction Leidschendam/Wassenaar/N44/Den Haag–Leidschenveen. Turn right onto the Noordelijke Randweg/N14. Turn right at the first cross street onto Donau. At the roundabout, take the 3rd exit onto Loire. After 100 meters, turn left into the parking lot of the “Castellum” building (take the right-hand barrier on the inside of the semi-circular building, see blue arrow in the photo). After 25 meters, visitor parking for BT Engineering and the BT Engineering Group is on the left. Enter through Entrance A; BT Engineering is located on the fourth floor.

From Utrecht (A12)

Near Nootdorp, keep to the 2 right-hand lanes at the Prins Clausplein interchange to follow signs for E19/A4 toward Amsterdam/Leidschendam. Keep in the second lane from the right to take exit 8–Leidschendam toward Ring N14, direction Leidschendam/Wassenaar/Den Haag–Leidschenveen/N44. Continue straight onto Donau. At the roundabout, take the 3rd exit onto Loire. After 100 meters, turn left into the parking lot of the “Castellum” building (take the right-hand barrier on the inside of the semi-circular building, see blue arrow in the photo). After 25 meters, visitor parking for BT Engineering and the BT Engineering Group is on the left. Enter through Entrance A; BT Engineering is located on the fourth floor.

From Rotterdam (A4 or A13)

Take exit 8–Leidschendam toward Ring N14, direction Leidschendam/Wassenaar/N44/Den Haag–Leidschenveen. Continue straight onto Donau. At the roundabout, take the 3rd exit onto Loire. After 100 meters, turn left into the parking lot of the “Castellum” building (take the right-hand barrier on the inside of the semi-circular building, see blue arrow in the photo). After 25 meters, visitor parking for BT Engineering and the BT Engineering Group is on the left. Enter through Entrance A; BT Engineering is located on the fourth floor.