Wow, thank you for all the replies! A few answers...
Second bedroom definitely. Might only be a single bit if your circumstances change big time, you could take the single yourself and let the double potentially, if you had to. I wouldn’t by choice either but if it were that or lose the flat...
That's definitely a good point - yes, it's not my preference to have a lodger but I would absolutely still do it if I had to! Don't mind a single for myself in that situation either.
Stretch for access to outside space whether it’s a balcony or a shared garden or both or what. Mental health if we end up with more lockdowns. Space to dry clothes. Full sized doors rather than just windows to air the place out. All useful stuff.
I'm not sure I can stretch to direct access to outdoor space as well as a second bedroom, but most 2 bed flats I'm considering do have shared gardens (just you'd have to go through the block to get back out).
With service charges, you need to look at specific properties not a general ballpark. They certainly don’t ‘increase over time’, as they’re legally reflective of work done/planned.
Yes, I am looking at specific property charges, just wanted to give an indication above of the range they cover! Everything I've read has said they certainly can increase though - I'll be reading documents carefully.
Your multiples sound very very high. Are you sure you can borrow that much?
I mean, I wish they were lower!
But did you realise those don't include the deposit? So the mortgage multiples range from just over 3 to just under 4.5 and the upper end is the price I'm saying I personally, currently, don't think I want to take on but I'm not sure if I should stretch to my very max (if the bank even agreed on it, I have a decision in principle but I know that's not a definite!).
And no, you should only spend what’s comfortable and stretching yourself to the max is nonsense especially in the days of very low interest rates and market uncertainty. The interest rates will only go up, your flat might go down etc and you don’t want to feel like a slave to the mortgage.
This is what I was concerned about, and I find it interesting there's only you/a couple of you that have said it. My older sibling has certainly recommended not to stretch - they also bought alone then had unforeseen and unavoidable issues that meant they seriously dropped salary and were barely breaking even despite having not stretched as far as possible with the mortgage.