The best place to put a Hedgehog House will depend if you plan to use it as a nesting shelter or a feeding station as the two need to be used slightly differently.
We would recommend using two hedgehog houses. One for feeding and one for nesting. Place them both in quiet areas around the garden, under hedgerows / near flower beds.
An area that doesn't get much action is best as the less the surroundings change the more likely you are to get repeat visits.
If using two houses, make sure they are in different areas of the garden as they don't like to eat where they sleep.
For more info on using your Hedgehog House please see our guide here: https://homeandroost.co.uk/blog/hedgehog-house-guide/