Help with signing over a fair amount of house to partner funding extension

MS1982

I have just moved into a house that cost £480k, with a £188k mortgage. My partner who is living here with me did not buy the house with me but we are now looking at an extension to make the place more comfortable and she has savings that we could do this with. Likely cost would be about £100k. What's the best option for making sure that they have ownership of a fair part of the house? She can't just give me the money and get a solicitor to draw up some paperwork because I can't make overpayments. So it's easier if she funds the extension and then we work something up. But what's the fairest way to do that?

TheJP

MS1982 said:

I have just moved into a house that cost £480k, with a £188k mortgage. My partner who is living here with me did not buy the house with me but we are now looking at an extension to make the place more comfortable and she has savings that we could do this with. Likely cost would be about £100k. What's the best option for making sure that they have ownership of a fair part of the house? She can't just give me the money and get a solicitor to draw up some paperwork because I can't make overpayments. So it's easier if she funds the extension and then we work something up. But what's the fairest way to do that?

I guess you need to consider how much the house is currently worth and how much it will be worth after the extension and work out what percentage her £100k investment buys.