Mortgage for a cooperative flat

Why doesn't a standard mortgage work for a cooperative flat?

Česká spořitelna says this directly on its website: giving a cooperative flat as security is not normally possible, because the flat isn't owned by you but by the cooperative. Komerční banka goes further in its internal guidance and states that this also means such a flat can't even be formally valued.

The practical consequence is simple. The bank needs something else to secure the loan against, or it has to wait until the flat passes into private ownership. That's where the three routes below come from.

Three ways to finance a cooperative flat

1. A mortgage secured by another property

The cheapest and most common solution. You get a loan to pay for the transfer of the share, but you give another privately owned property as security. It doesn't have to be yours: banks also accept a third party's property, and that person doesn't have to be a relative. Whoever owns it is still putting their own property on the line by doing so, though, so it isn't a formality someone signs without thinking.

The conditions on this route are no different from an ordinary mortgage. LTV applies here too, calculated from the property given as security, not from the price of the cooperative share.

2. A pre-mortgage loan

A short-term loan to bridge the time before the flat passes into private ownership. It's arranged together with the follow-on mortgage, and once you register the flat in your name and give it as security, it rolls over into that mortgage. Česká spořitelna states a deadline of two years at the latest, Raiffeisenbank a maximum of twenty-four months.

The condition is that the transfer genuinely is being planned. The bank will want written confirmation of this from the cooperative. Without it, it's only a claim, and a cooperative that isn't considering a transfer won't issue that document.

Watch out, because not every bank offers this route. Komerční banka states on its website that it does not currently provide a pre-mortgage loan, and its internal guidance refers to discontinuing its sale (checked on 21 September 2026). This is exactly the kind of condition worth checking before you sign a reservation agreement.

3. An unsecured housing loan

Banks offer this under various names, and it works like a consumer loan intended for housing. It doesn't need any property, but it comes with a lower ceiling, a shorter term, and costs more than a mortgage. It makes the most sense when you're paying most of the price yourself.

What will the bank want from the cooperative?

According to Komerční banka's internal guidance, two different situations are distinguished, and the bank wants something different for each.

• You're paying a membership contribution to the cooperative. You need a written agreement between the cooperative and the member on a further membership contribution, the minutes of the members' meeting that approved it, and the cooperative's statutes. The minutes aren't needed only if the statutes say the meeting's consent isn't required.
• You're buying a share from an existing member. You need a written agreement on the transfer of the cooperative share between you and them.
• The flat is already in private ownership. Then it isn't a cooperative flat at all, and the ordinary rules apply, set out on our page Mortgage for a flat.

And here's a mistake that comes up repeatedly: it has to be an agreement on the transfer of the cooperative share, not an agreement on the transfer of tenancy rights. By law, the right to use the flat transfers automatically once the share transfers. So an agreement that only mentions tenancy isn't enough for a bank.

A trap almost nobody mentions: the cooperative's annuity

Komerční banka states this explicitly in its internal guidance: a mortgage loan cannot be used to pay the annuity directly, or an instalment on a loan a third party provided to the cooperative. The cooperative has to request that money a different way, as a further membership contribution, or the annuity has to be written into the transfer agreement as part of the price for the share.

In practice, that means the wording of the agreement decides it, not the bank's goodwill. If the annuity is stated in the agreement as part of the price for the transfer of the share, there's no problem. If it's meant to be paid "on the side", the loan can't reach it.

Who has to sign it?

When both spouses are members of the cooperative, both sign the agreement, whether it's a further membership contribution or a transfer of the share. If one spouse acquired the share before the marriage and holds it alone, they sign the agreement alone, but the bank will still ask for the other spouse's consent, because it concerns the family's housing.

A share can also belong to several people together, unless the statutes forbid it. In that case all co-owners have to sign the agreement, including, for instance, an unmarried couple.

What to do in practice

Before you sign anything, find out two things: whether the cooperative is actually planning a transfer into private ownership, and whether you have a property on hand that can be given as security. The answers decide which of the three routes is open to you, and that in turn decides which banks come into play.

Our adviser will go through the banks they work with and tell you where your particular combination will be accepted. Which banks our adviser arranges loans with, and which we only describe, is listed in our mortgage comparison.

Frequently asked questions