Episode three in the Wye Valley and in the opening sequences
the Interceptor is first seen preparing his zapper inside the lair
whilst Mikey signals his arrival by hovering outside the narrow
windows flashing the lights of G-MEAN.

On his way to the helicopter, the Interceptor walks past the two
motorbikes (the best view of the KMX200 - INT 3) and inspects
the dust gathering on his Maserati - you can't hear it but you
can imagine a "tut". On the Interceptor's return to the lair later
in the episode, unseen hands have very kindly lowered the
Maserati's roof for the Interceptor's drive into Hay-on-Wye.

I have it on good authority that the lair is Moor Park Tower
at Ewyas Harold in Herefordshire, built in 1830. It stands
70ft (21m) and overlooks the golf course.

page 4 of 9