key4 – investment property financing |

A mortgage for your investment property

Are you looking for financing for your property? That’s lucky. Because at key4, you will receive several attractive offers with just one request.

Interested in sustainable financing?

What you can expect from key4

Always at your side

We assess and broker requests and take care of the entire administration.

Several offers

With one request you will receive several attractive offers.

Transparent costs

There are no hidden costs. You only pay fees if you take out a mortgage.

How can I find attractive mortgages?

How can I find attractive mortgages?

Is your investment property suitable for key4?



Type of property

Completed multi-family units and properties for commercial use


One pledged object per request (incl. total pledge)

Financing structure

Fixed-rate mortgage or fixed-rate mortgage combined with a SARON Flex mortgage

Loan amount

From CHF 1 000 000


2–20 years, can be combined with a SARON Flex mortgage

What clients say about us

Quality at excellent conditions

Thomas Graf
Owner and Managing Director of Graf AG General-/Totalunternehmung

High level of transparency, first-class interest rates

Béatrice Schaeppi
Managing Director and General Partner of Schaeppi Grundstücke Verwaltungen KG

Clear structure, simple comparison

Bruno Gerber
Financial Officer of Baugenossenschaft Berna

Would you like to invest in mortgages?

We bring mortgage holders and investors together and take care of the administration. Invest in investment properties or in owner-occupied residential property.

Straight to a non-binding interest rate indication

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