100 % LTV mortgage
A mortgage that covers the whole purchase price with no own funds. For owner-occupied housing the ČNB effectively rules it out with its LTV limit of 80 %, or 90 % for applicants under 36. Banks may exceed the limit on only 5 % of the volume of new loans per quarter. In practice the whole price can be financed only when another property is added as collateral.
Example
A flat costs CZK 5,000,000 and the buyers have no savings. If the parents pledge their own flat worth CZK 2,000,000, the bank sets the CZK 5,000,000 loan against collateral of CZK 7,000,000, and LTV comes out at roughly 71 %. At 5.00 % over 30 years the payment is CZK 26,841. You still need your own money for fees, the valuation and the land registry entry.
In practice
Offers billed as a “no-deposit mortgage” usually combine a mortgage up to 80 % with a non-purpose or consumer loan for the rest. That second loan carries a higher rate and a shorter term, and both payments must fit within the bank's internal thresholds. Parents who pledge their flat risk losing it if repayments fail. Once part of the debt is repaid, you can ask for their property to be released from the lien.
How it differs
LTV is the ratio of the loan to the value of the collateral, not to the purchase price, so a loan for the full price need not mean 100 % LTV when more than one property is pledged. That is exactly what additional collateral makes possible. A down payment, on the other hand, is the part of the price you pay from your own pocket with an ordinary mortgage.
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