Retaining Wall

Looking for some advice

At the end of our garden is a slope of soil from the garden fence and slopes about 10 foot.
Basically I want to build a wall about 4 foot and fill it so we can plant some plants in it.

My question is if I build the wall across do I have to build sides next to boundary fence.



Grey is boundary fence, red is wall and green is the part for my question, the wall will be over 5m wide

any advice would be great.

 

Well it's not a good idea to bury the fence, if that is what you mean.

 

that is my thought, however the back fence is some 3 foot above the garden floor and soil slopes 3 foot high down for back fence, so moving any soil thats there is going to be difficult

 

No you don't have to have side retaining walls. My own garden was sloping - I used railway sleepers to create a retaining wall - with no sleepers to the side.

I didn't extend the retaining wall - but I did place a piece of timber between the bed and neighbours fence to keep soil off the fence. The idea being to prevent the wooden fence rotting and to make it easy to replace the fence panel.

Top tip - whether using timber or stone to build the wall - leave some holes for drainage. You don't want the wall to prevent drainage of the raised bed.

 

thats good to know what type of timber did you use between the bed and the fence, my idea was to use sleepers, the area is under trees, so even after a total downpour it doesn't get that wet but i will be putting holes for water to let it drain away

 

Building a 4ft high wall 5 mtrs long will be a big job if using bricks or blocks.
You will need proper foundations to handle the weight of the wall and it will need to be 9" thick or use pillasters etc.

As for any side retainers, depends whats there, a picture of the site would be of help.

As @clanless says timber may be a better and easier route..