If you study the location and construction of the famous temple of Lord Venkateshwara Tirupati Balaji from the angle of Vastu, Its legendary prosperity is thanks mainly to the exemplary implementation of the principles of Vastu.
The main temple is situated on the South-West side of the temple premises.
On its North-East direction is a lake and pond.
The dining hall of the temple is on South-East side while the North-West and North side of the temple is allocated to the godown (storage place) for grains and items require in the kitchen.
The entire temple premises is of square shape as a result of which its axis and that of the Earth are perpendicular to each other.
The main temple is occupying only the one fourth area of the total premises and on its Eastern and Northern side is an open area.
Thus the Tirupati temple of Lord Balaji is an ideal place according to the norms of Vastu which is why it is the most prosperous temple on earth.