How to Finance the Renovation of an Apartment Building Before Selling the Flats
Published 15 October 2026
You can pay for the renovation of a Czech apartment building (činžák) before dividing it into units from your own capital, from a bank loan secured on the building, or together with a partner. No source is universally best: they differ in the level of risk, your control over the project and how much of the proceeds you finally keep. Base your decision on the feasibility study and a budget split by phase, not on guesswork.
Summary
- There are three basic sources: your own capital, a loan secured on the building, and a partner or joint venture.
- Each source splits risk, control over the project and returns differently.
- It pays to tie funding to three gates: legal, permit and sales gate.
- A bank or partner will want the feasibility output, a budget and a schedule.
- The typical value difference between selling the building whole and selling by unit is +20–40%; the exact figure is set by the feasibility study.
Why settle financing only after the feasibility study
Before you choose a source of money, you need to know what the project will actually cost and what it will bring in. The typical value difference between selling a building whole and selling it unit by unit is +20–40%, but this is only an indicative range. The exact figure for your building can be determined only by a feasibility study, that is, an assessment of the technical, legal and market conditions.
The paid Audit and Plan delivers its output within 6 weeks. That output is the basis for the budget, for talks with the bank and for an offer to a partner. You can get a rough idea of the potential in the building potential calculator, but it does not replace a feasibility study.
Renovation before sale involves building works, preparing the documents needed to create separate units, and any permits required under the Building Act No. 283/2021 Coll. Each of these parts has different demands on money and time.
Three funding sources: what they involve
Your own capital
You pay for the renovation from your savings or other income. You have full control and answer to nobody, but you tie up your own funds and bear all the risk yourself.
Bank loan secured on the building
The bank provides the funds and requires a mortgage over the property (zástava) as security. The profit from the project stays with you, but you must repay the loan regardless of how the project develops. Terms, including interest and fees, are set by the individual bank and cannot be stated in general beforehand.
Partner or joint venture
A partner contributes capital and shares the risk, in return for a share of the profit. The framework is offered by Partnership / JV. The terms of the share are agreed by contract and depend on the particular building.
Comparison: risk, control and impact on returns
| Criterion | Own capital | Loan secured on the building | Partner / joint venture |
|---|---|---|---|
| Risk | You bear all of it | You bear it, and you also put the building at stake | Shared between you and the partner |
| Control over the project | Full | High; the bank monitors drawdowns and contract terms | Divided according to the agreement |
| Impact on returns | The profit stays with you | The profit stays with you, net of the cost of the loan | The profit is split according to the agreement |
| Own funds required | Highest | Medium; the bank usually expects an equity contribution | Lower; the partner tops up the capital |
The table is indicative only. Specific terms always depend on the condition of the building, your creditworthiness and the agreement with the counterparty. You can also combine sources, for example your own capital for the preparatory phase and a loan or partner for the construction itself.
Financing by project gates
A transformation project passes through three gates: legal, permit and sales gate. You move to the next phase only with confirmed numbers. The same principle is worth applying to the money: do not release the whole amount at once, but in stages.
- Legal gate: verification of the building's legal status and of the conditions for division into units. A smaller preparatory budget is enough, for example from your own capital.
- Permit gate: confirmation of what can be altered and permitted under the Building Act No. 283/2021 Coll. Only after this does it make sense to take out a loan or enter a partnership for the main works.
- Sales gate: confirmation of market assumptions and unit prices before sales begin.
Proceeding by gates reduces the risk of investing large sums in a step that later proves unworkable. The How it works page describes it in detail (8 phases and 3 gates).
What a bank or partner will ask for
Whatever the source, the required documents overlap considerably. In particular, prepare the following:
- Feasibility output: technical condition, legal status, the proposed division into units and market assumptions.
- Budget: broken down by phase and type of work, with a reserve for unforeseen costs.
- Schedule: the sequence of permits, construction and sales, linked to the gates.
- Proof of ownership and encumbrances: a current extract from the katastr nemovitostí (Czech Land Registry), in particular mortgages and easements (věcná břemena).
- Exit plan: how the funds will be repaid or paid out from the sale of the units.
The more specific and verifiable your documents, the easier it is for the other side to decide. Documentation without confirmed numbers, by contrast, prolongs negotiations.
What to watch out for
- Transfer of units and registration: ownership of a property passes only upon registration (vklad) in the katastr nemovitostí (Czech Land Registry). The land registry office may not decide earlier than 20 days after notifying the owner (Land Registry Act No. 256/2013 Coll.); the average registration time is roughly 22 days. Factor this into your schedule, because the proceeds of a sale arrive with a delay.
- Mortgage and sale: if the building is mortgaged, the release of the mortgage must be dealt with when units are sold. Agree this with the bank in advance.
- Payments: cash payments are limited to CZK 270,000 per day (Act No. 254/2004 Coll.). Make payments for works and for sales by bank transfer.
- Taxes: the real estate acquisition tax (daň z nabytí nemovitých věcí) has been abolished (Act No. 386/2020 Coll.). Income tax on a sale is governed by Act No. 586/1992 Coll. and depends, for example, on the time test and on whether the property was used as a home. Check the specific impact with the Financial Administration (Finanční správa) or a tax adviser.
How to choose a source in practice
First have a feasibility study and budget prepared. Then consider how much you want and are able to put into the project, and how much risk you are willing to bear. If you want to keep full control and have enough capital, choose your own funds. If you want to keep the whole profit but lack all the funds, consider a loan. If you want to share the risk, look for a partner.
If you prefer to have the whole project run under a single contract, End-to-end delivery is an option. If you have questions about your building, use the contact page.