I suspect that you wouldn’t pass building regs?
There is a potential risk of falling “down the hole”.
I guess that if the landing newel post was pulled slightly further back along the downward direction of the stairs, it could be mitigated by a handrail screwed across at 90° to the stair run on the wall that the stairs face?
you will still have the handrail and banister following the string line and still get in the way on the corner all you will save is perhaps 15-20mm as the difference between newel and handrail at the actual corner
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local