I would be interested in this too.
I recently became interested in a new house which is €240,000. Our own home would be worth around 200-210k. Our mortgage is 105k with 19 yrs left. We were thinking of trading up, or at least to see if our own house would sell in the current climate.
If we had our house sold for 210k, and leaving 10k aside for fees etc., would it mean an extra 40k onto our mortgage? We could handle the reayments, as our current interest rate is 5.5% tracker with BoI.