On The A470 From Builth To Llyswen turn at the Trericket Mill and take an immediate right as you turn in. Follow the lane up a bumpy track to the first farm. Go through gate with the AA sign and continue up the drive to the house.
The turning off the A470 is:
N52degrees 03.874 W3degrees 18.185
N52degrees 04.052 W3degrees 18.562