I've namechanged as going to post some personal information and my previous name is a bit outing.
A bit of background:
Currently live in SE London in a period conversion flat, which we extended a couple of years ago. 2 DC of primary age.
Our flat was 2 bed and when DC2 was born we were bursting at seams and we tried to move, but the market was crazy and everything was going way over asking so we weren't successful at buying anything locally. We extended to make another bedroom/better living space but it was only ever intended to be a stopgap.
We are now at the stage where we would like to move as the space is becoming cramped and DC2's bedroom is off the lounge - not a problem now as he sleeps very well, but as he gets older I can see this being more of an issue.
We would like to stay locally as the school is fantastic and we have lots of local friends, but the only way to get a house is to increase our mortgage substantially, potentially by as much as £200k.
We currently earn quite well and could afford this mortgage. We take home over £6k a month net between us, and so a £2000 per month mortgage is doable (we currently pay £1250) and we could still save a bit. I have no idea if this is a huge or normal mortgage amount for our area and being typically British do not discuss money with our friends, so I have no idea if this is what everyone is doing.
However I am aware that rates could rise, we could lose our jobs and have to take lower paying ones, and it just seems like so much money. I should add that DH earns 3x as much as me so if he lost his job I wouldn't be able to cover our outgoings.
The options are: stay and feel cramped (we are also on a main road I would like to get off if possible). We are at limit of extending this place now.
Move locally with big mortgage.
Move away to somewhere cheaper (we have thought about this extensively and anywhere we have found we would like to move to with a decent commute isn't any cheaper one commuting costs are factored in).
So I suppose I'm asking - should we just go for the increase in mortgage and keep fingers crossed despite all the economic uncertainty?
And (cheeky question) if you live in South London - how much do you pay a month on your mortgage?