The Secret Training Centre

Today I had to go to a BT training centre. This was bad on three counts:

1. It was in Milton Keynes, a navigational nightmare in itself.
2. The directions sucked bigtime.
3. Once i found the business park type thing (which actually only took 10 mins), it consisted of 10 identical, unmarked, mirror-glass fronted anonymous modern buildings, with no signs. It took longer to find reception than to get there (OK, slight exageration).

What variety of moron designs these places?