Buy house & take over the current mortgage

Real Estate
1

I’ve never had a mortgage before, and I’m looking into it.
I have the opportunity to buy a house and repay a mortgage 815k at a fixed rate of 0.8 for six years. Is this a good idea?
Do you know the costs of this process?
In addition to the notary, financial registry, etc.?

I’m going to ask the bank directly(Finovo) about the transfer conditions,fees,etc but if you can help me so I don’t get scammed
Maybe it’s better a Saron mortgage?

I think if not accepted to take own the mortgate the the owner will have significant cancellation costs ? (800k amount)

Thank a lot

2

I don’t know about the process, but 0.8% for 6 years is a pretty good deal I would say.
You would probably get closer to 1% right now for the same duration, and SARON margin around 0.7%.
So unless you really want a longer fixed-term mortgage like 10y (which will come at a significantly higher rate), I would take it. SARON isn’t going to be much better than that given the generally increased margins nowadays, but with significantly more interest rates risk.

See Mortgage rates in Switzerland [2025 edition] for discussions about current rates.