Damp/drainage

[M4D-H4TT3R]

Hi, I have a damp interiour wall and i belive it is due to the patio outside being about two foot higher than the interiour floor height, i was considering puting dranage along the wall with the patio on which toutches the wall.
Which sort of drain should i install, a surface drain or a french drain, the patio that goes alomg the wall slopes so i was unawhare if i could install a surface drain and althought it wpuld drain away more of the water i fear the water will just go underneath the surface drain and make its way to the wall. I am now thinking french drain and some form of tanking on the small patch of wall.
There is a type of pebal dash on the outside which i dont think breaths but i will strip back to brick/stone on inside and either leave bare or get breathabpe lime morta put on.
Any help/advice would be greatly appreciated thankyou
Ps. If it is needed i could provide a drawring on orientation of wall and patio

 

[blup]

Pictures would help,

A surface drain itself will not prevent damp from underneath the patio “bridging” the dpc of the house wall, physical separation is required, or a membrane of some kind that prevents the damp transferring through.

Blup

 

[M4D-H4TT3R]

Ahh ok so digging down to dpc and then putting some type of tanking on the wall from the dpc up the wall would be the solution, and then a ground/french drain to take the exsess away, ill provide photos later.
Thankyou

 

[M4D-H4TT3R]

The image with the steps shows the interiour floor height and the images with the planters on is the patio area belived to be the cause of the damp,

 

[CBW]

The image with the steps shows the interiour floor height and the images with the planters on is the patio area belived to be the cause of the damp,

No images yet. The pebble dash could be no fine type house.

 

[M4D-H4TT3R]

 

[M4D-H4TT3R]

 

[M4D-H4TT3R]

 

[M4D-H4TT3R]

This is the interiour wall maby a foot above the groundlevel outside

 

[blup]

I guess tanking it would be an option, plenty of coats of bitumen., unless you could leave a drainage gap but that might be difficult...

Blup

 

[CBW]

Dpc looks imo where the steps are. You also have a damaged downspout, which could be the source.

 

[M4D-H4TT3R]

Cant really leave gap as it nabours land thats why i thought tank and frenchdrain

 

[M4D-H4TT3R]

Yea dpc is on the wall about halfway up first step.
Yea fixing downpipe and gutter is on list.
The internal damp due to this is extensive and has been happening for a long time as it looks like its tried to be fixed multiple times internaly. Tharefore my assesment was roof/chimney problems or the raised ground outside. Eitherway having ground higher is never a good thing.
Cheers