Many thanks for your patience. Your rights here will be somewhat limited unfortunately. This is because the pool is the property of the academy, it is their premises and they have the right to choose who to let it out to. If they no longer wish a party to use their pool, they have every legal right to prevent them from doing so. In the circumstances, the party they no longer wish to allow use of the pool to is you. It really makes no difference that you have ran successful classes there and there for a while and that there is still demand for these for some time to come. If they no longer wish to allow you to use their premises they can do this, regardless of the success or length of your use to date. It is exactly the same principle as having your own private pool at home and allowing someone to use that, however once you no longer wish to allow that, as it is your property and on your premises, you have every legal right to exclude them from future use of these facilities.
Your only rights here would be that you are entitled to receive some notice for the termination of the relationship you have with them. In the absence of a contractual notice period, you are entitled to a ‘reasonable notice period’ which is implied in law.
What amounts to a reasonable notice period will depend on many factors and in reality only a court can decide what that should be in each case. In general it will be determined by the frequency of payment of hire charges, what notice others in the same or similar position as you are expected to give, accepted industry practices, etc. It could well be that 4 months notice which you have been given is sufficient, but you could try and argue that if you had bookings for the beginning of the next academic year then the period should be extended to allow you to fulfil those, but any extension is only likely to be for another month or two at most. So a suitable notice period is the best you can expect here, you simply cannot force them to allow you to continue using the pool.
This is your basic legal position. I have more detailed advice for you in terms of the rights you have should you beLieve that no reasonable notice has been given, which I wish to discuss so please take a second to leave a positive rating for the service so far (by selecting 3, 4 or 5 stars) and I can continue with that and answer any further questions you may have. Don’t worry, there I no extra cost and leaving a rating will not close the question and we can continue this discussion. Thank you