Render over damaged wall

[Uncle_slow_pints]

Looking for some advice please. I'm not planning on doing this myself but know nothing about render so want to know what I'm asking for.

There is a retaining wall between my house and the neighbours, the wall was installed before we moved in and no allouance for drainage was added. The plan is to drill through and add a couple of pipes from my (higher) drive to the neighbours.

But, as shown in the image the bricks are not looking good so my thinking was to remove the top coarse and add some capping stones then render the sides.

Does rendering the sids sound like a reasonable idea? If so what is the best plan here? render boards, mesh, lime render, cement render, something else?

 

[23vc]

Although rendering’s got a chance of working, there are loads of different possible approaches and you’ll probably struggle to get anyone to put their name to any particular solution working. Brickwork doesn’t look in a good state and assume you can’t access the retaining side of the wall to see what if any waterproofing it’s got?

If it was my place and I had to keep the wall and not rebuild it, I’d probably blackjack it and either S&C render or find something that claims to be half decent on damp walls and use that, but wouldn’t hold my breath on it lasting too long.