A question about flexible working..

[Behooven]

I am lucky enough to have a really forward thinking line manager. Happy to let me work flexibly based on my output. It works really successfully from all points of view. Since an injury and subsequent operation I've been in a lot of pain, exacerbated by desk work (shoulder and back pain) so have been working between home and office for almost a year, still full time and with no sick leave required.
My diagnosis is that this is unlikely to improve. Do I have a strong claim to ask for this work pattern to be formalised, I do worry what will happen in the future if anything changes.

I would say you do - not least because it's obviously currently working and not impacting the company and other employers in a negative way.

Most likely they would formalise it and then review it after a set time. If they turned you down then you would have a good chance of appealing it as it's already working the way it is.

*employees

The only problem would be that it might need to be a set pattern of working for it to be a flexible working agreement

Your condition is fairly likely to amount to a disability (depending on how much the condition affects your ability to conduct normal day to day activities) and as such the flexible working is likely to be considered a reasonable adjustment under the Equality Act, particularly since the arrangement has been working without any problems so far.

i'm an employment lawyer btw

Very quick answers - thank you.

I am lucky in the type of job, I have set projects to work on and time scales for completion so it doesn't really matter how I get it done. It's that traditional thing of being at the desk every day, it's a difficult norm to break.
I'm not actually disabled though, I hope I didn't give that impression, it's a chronic pain situation which flares up worse when at a desk/mousing/keying for extended periods of time.