There are a lot of houses that I love that I could just about afford at a push, there are very few that are dream homes.
Do you love it, or is it your dream home?
When it comes to financially stability, I think that's what I would make myself consider.
The happiness being in my dream home would give will pay emotional dividends.
Moving to a house I love when I am not far off mortgage free probably wouldn't be quite enough to tip the balance for me.
220k over 15ish years on 150k plus pay rises is doable, but your priorities and your partner's need to align.
What does the future of your careers or earnings look like? Are they stable, are they growing? Or are you getting 2% payrises if you are lucky?
If good salary prospects + secure jobs + dream home - do it
If average salary prospects + jobs that might be at risk during a recession + house I love because it's got a bigger kitchen and the garden is less overlooked, personally, I wouldn't