Edible wildlife oasis creation!

Hi all,

I'd love your advice on my garden. I'm based in St Leonards-On-Sea and it faces SW, with a slight slope and clay soil. I have a young daughter and I'd like for her to grow up in a garden where she can pick fruits off trees and also observe nature up-close and personal and interact with it too in an organic pool (inspired by David Pagan Butler). My well-meaning father-in-law cut back everything when I bought the house but the garden is in need of some tlc.

The garden is 40m long and 6m wide, with the photo being taken from the edge of the patio, 8m. The shed marks 34m.

I'd like to have a garden kitchen off the patio, separated by a wall with herbs in the top, to the left of the photo, which will be 3m long, and on the right I would have some raised beds for veg.

I'm thinking about a biodiverse lawn from 11m to the 20m mark, down the gentle slope. How should I go about preparing the soil for the lawn and does anyone have any recommendations for suppliers please?

I have a rouge de bordeaux fig tree in a pot from my previous house- should I be thinking about planting it out, perhaps in the lawn?

I plan to install wooden steps down the left-hand boundary wall (not ours), running the entire length of the garden.

I have an arborist coming to look at the sycamore next to the shed as it's huge and drops a lot of leaves in the autumn.

There is a badger sett in the land on the left of the photo and we also have foxes visit us daily, along with bats and numerous species of birds, which is something I'd like to retain.

Any thoughts or advice welcome – I'm keen but green. We don't have a giant budget at the moment but might be able to invest in the garden in the future.

Thank you!