About your leasehold home on the Estate

I have recently bought a leasehold residential property on the Estate. What do I need to be aware of?
I want to remove or reduce the size of a tree on my leasehold residential property. Do I need permission for this?
What are my quarterly charges likely to be for living on the Estate?
Can I carry out alterations to my leasehold residential property?
Is there a cost to obtaining consent for alterations?
Do I need permission to rent my leasehold residential property out?