Retaining Wall Help

[GlenJ]

We have an awesome sloping garden.

The previous owners had a huge deck (including pond) which had become a 'little' worse for wear.

Anyway we're going to try and terrace the thing. First section up is where the pond used to be. I started digging a trench for foundations for the retaining wall.

Anyway peering over the fence next door - the whote plastic chairs -

, there's a two metre drop down relative to our land.

So my question is how deep do my foundations need to be? (We're looking at a 1 metre high retaining wall on our side.)

 

[r896neo]

Its unclear what your photos show? What's your garden what's the neighbours?

Where is the boundary and is the house behind you in the photos? Post a few more pictures or a sketch if possible?