bearishbull: It's all well and good saying they might be splitting it 50:50, but in the scenario you describe she would be paying higher mortgage repayments to compensate for putting in less money up front. That wasn't the case. And given that they were planning to get married I would assume the issue of who owned what percentage would be redundant.
Anyway, here's my calculations (I think 12-15k is too much!!!)
The value of the house at the start should include stamp duty and any other costs and refurbishments that went into it. What you've mentioned (there may be furniture and solicitors fees to factor in too?)
490+37+4.9+2 = 533.9
You pay 800 and she pays 600 towards mortgage, so you own 207k and she owns 155k of it.
So overall:
You : 207 + 165 + 4.9 = 376.9
She : 155 + 2 = 157
So you own 70.6% and she owns 29.4%.
if it's worth 550 now and you payed in total 533.9, that's a net profit of 16.1k of which she should get 29.4% - i.e. €4,734 by my calculations! So round it up to 5 or 6 and everyone's a winner. (I'm sure I've made some mistake there, but I gotta get back to work now!
)
Seems alot fairer for 4 or 5 mortgage repayments too!
(P.S. Sorry for the partially finished post before)