Quote from knjWhy, you can always rent the house and have an income
?
There's a lot more to renting out a place than just collecting money man. You're looking at endless costs for insurance, maintenance, letting agents (unless you seek out and background check tenants yourself which probably isn't wise), and ultimately if they fuck up the property it's your ass on the line. I wouldn't do it unless I had more than enough cash to cover, for example, three months of no tenants because someone decided to damage the whole property with water and disappear abroad because they thought their landlord was a bit shit (true story).
Like Liam, I wouldn't consider buying a house until at least my 30s. Lifestyle and prospects can change completely at our age, and even though you might be happy now you could find yourself feeling very different if you're made redundant when you've barely settled into your house. Don't make the mistake that I made, and think that after being with a company for years they'll think twice about dropping you the moment you're financially inconvenient for them, no matter how well you get on with them.
And then what, back to renting and barely covering the mortgage payments on a house you don't need? That's assuming you get tenants in all the time, which often isn't the case. And if you're no longer living in the area, what about the practicalities of handling viewings, repairs, etc?
I'm perfectly happy to rent for the indefinite future, because while it means there are limitations on how much I can customise my home and I'm not going to make anything from it, I'm not losing an awful lot either. I have a lovely home to live in, and if I decide that my neighbours suck or I want a fresh start in another city or country, I can make the move fairly painlessly.
If you still want to do it with all this in mind, perhaps it's the right choice. I would seriously consider some of these possibilities, though. Take it from someone who's seen good friends get into some serious shit with unwise property decisions at too young an age, it's not something you want to get wrong.
If I were you, I'd just assume that you're going to lose your job in two years. Not that I'm trying to bring you bad fortune, but you need to consider things with that kind of mentality to figure out whether or not this is really a good idea. In any other industry it wouldn't be such a big deal, but it's not like the UK is oozing with games industry jobs at any given moment in time.