Eaton Square Senior/ London Park School Mayfair will not be doubling in size per se, (although the school absolutely welcomes pupils from other schools, capacity permitting!).
For those that join from other schools, I am sure Eaton Square Senior will do all they can to help with what is a very difficult situation and will assimilate students effectively to ensure they feel comfortable. Over the years, I have personally seen new starters join in all different year groups and at different times. My son had a new starter join in his year group last year and it was a seamless transition (the new starter is now a very good friend of my son's!), so some of the pupils have not been at the school since the very beginning and settle in very quickly.
The school will always remain a smaller school even with additional students as they would not want to compromise the quality of education or care provided.
We now fall under the umbrella of 'London Park Schools (LPS),' comprising of LPS Mayfair, LPS Clapham and the Eaton Square Sixth Form.
Despite being a small school, we will now have the added benefit and opportunity to collaborate with LPS Clapham and the Sixth Form, and staff and departments are exploring opportunities to work together on future trips, clubs and shared activities and events. So very exciting times ahead!!
Parents and pupils will have the best of both worlds by being able to work together with their sister schools, returning to their small communities thereafter. Pupils from LPS Mayfair and LPS Clapham will filter into Eaton Square Sixth Form, so it's great that they would have had the opportunity to familiarise themselves with each another, having collaborated beforehand.
Do try and attend an Open Day or arrange a visit to the school if you can - it really helps to decide if it's the right fit for your child. And do speak to staff, teachers and existing pupils (my son would be more than happy to give his honest opinion of the school!).
I hope this helps. Please do reach out if you have any further questions and I would be more than happy to answer them.
Have a great day!