Home Lap Pool

I think having a pool built at home and assuming that space is not a problem but the cost is. What is a good length of a pool, ensure towers are not too short.

25m long swimming pool would be ideal. 15m - 20m would be the second choice.
I do not know the cost of such a pool, but I think you might have trouble finding one to the right length, because most home pools are small in order to enter the backyard. Remember that a 15m pool under would feel when making short turns because you have to consider how far you push the wall.