moving door frame sideways

[AURUM]

I need to move a door frame along by 10cm. I read the previous post about removing a door frame, but this door is situated in what was once an exterior wall (it is now the door between the kitchen and the classic flat-roofed bathroom extension on the ground floor at the back of a victorian house).
The walls are stripped back to the bonding coat
I literally need to slice down the right hand side and move over the frame and fill in the gap to the left.

Should I now dig around above the door to find out if there is a lintel and if it is wide enough to slide the frame over without requiring support?
What would your next move be?

 

[legs-akimbo]

Thats exactly what you need to do but do not move this door if there is not a minimum of 4" bearer below the lintel.

 

[AURUM]

thank you. I'm off for a dig and a poke to see what's there.
I'll let you know my results!

 

[AURUM]

more detail, This is a small door opening - 73cm wide and I initially need to widen it to 83cm to move it over.
I've found the lintel - it barely has 4ins of bearer underneath as it is.
I'm only left with 1 brick above the lintel then it's ceiling, but being an old outside wall it is 2 bricks thick.

So - the one question I have left (you hope) is whether to risk moving that lintel over 10cm without supporting the wall above it - the door is central to the 10 brick high wedge above it. I hope you can picture what I'm on about There's isn't much room to get a support in above this door.

 

[P.J.]

Just a thought...

How's about building your other side up by 100mm first, then supporting with strongboy, then take outl intel a chop in at 100mm over from the original position ?

Cheers,

P.J.