Matter of belief. I don’t think interest rates will rise again. Whether you do well with the Sparda product including the building savings contract... rather not
just go to a broker
I see it the same way...
so such combos (10/15 years bank, then 10/15 years building society) are usually worthwhile for the one offering it to you (commissions!)
I also believe that in the next few years (maybe even decades) we will not see big jumps upwards in interest rates (more like Japan, which has followed a 0% interest rate policy since 1980)
WHY? States have massively increased their debt even more in the last 12 months (Corona...) revenues have decreased, and if interest rates are only adjusted slightly upwards now, states will have to take out even more loans... so rather 0% interest rate policy, and try to drive inflation upwards (3-4%) thus states slowly reduce their debt... without much effort...
if interest rates rise by a few percent, then Italy, Spain, Portugal etc. would have much bigger problems than we had with Greece back then, and if that was already an “earthquake,” then anyone can imagine what will happen if a country that accounts for not 2% of the EU’s GDP (but rather 5-7-9%) – what will happen here in the EU then? (then there will be no more EURO either... and then we will have problems other than bank debt...)
therefore:
10 years fixed interest with good repayment (4% I find good, if you can make special repayments in between, wonderful)
but even if you only manage 2.5-3% repayment during that time:
if you notice that interest rates are going up, you can do a follow-up financing, and you can arrange that a few years in advance!