Context:
Married, both 27, 1 DD (2), earn 5k take home per month joint. Current £904 PM mortgage and £665 nursery fees from April with 15 free hours.
Bought our first home 2 years ago, 220k left on mortgage at 3.08% (3 years FR left). 3 bed semi detached in an okay part of the city - relatively safe, okay schools, but very little community and no centre to speak of, have to drive everywhere and I can't drive due to disability so reliant on DP.
Promotions have risen our wages these 2 years from 48k joint to 80k joint PA.
Expressed to DP that I feel lonely and cut off where we are, and given extra earnings, we should look at our dream area in the city. C. 350 - 400k for similar size to where we are now - conservation area, good transport links, community and outstanding schools, closer to friends. Also next to DD's nursery (in dream area) which I can't get to by public transport at the moment.
DP very attached to current first house as it's sentimental and doesn't like change, so needs convincing on the figures.
We could sell our house between 285-300k (giving around 50k deposit after fees and stamp duty). Checked with our mortgage, we could port over the 220k remainder to a new house at 3.03%. Then take out an extra 120k at 5.2%. Giving a total payment around £1,550.
I'm estimating that by the time 3 years are up, we'd be paying about 4.5% on the remaining balance of 320k - £1550 per month. Our earnings will only go up on current trajectory.
All in, even giving some contingency, we'd be left at least 3k PM for bills and disposable.
Question: Would these figures be enough to convince you to move around April time when 15 free hours kick in?
Thanks!