Germany has one of the most established prefab markets in Europe. For German banks a Fertighaus is not a niche product: they finance it through the same Baufinanzierung as a traditionally built Massivhaus and value it the same way. What changes is how the money flows between you, your bank and the manufacturer, and how you use the state's KfW funding.
This guide explains the payout schedule, the bank guarantee most manufacturers request, commitment interest, KfW 297 in 2026, the costs banks will not finance and how much equity you need. The CasitaLand directory lists 34 German manufacturers with 91 models; the median entry price among those with a published price is €160,000.
How German Banks Pay Out a Fertighaus Loan
A construction loan in Germany is paid out in line with build progress (Auszahlung nach Baufortschritt). For a Fertighaus the schedule usually looks like this:
- Land purchase: paid after the notary appointment, secured by a land charge (Grundschuld) in the land register.
- Foundation or basement: often built by a separate contractor before the house arrives, and paid on invoice.
- Delivery and assembly: the largest instalment, due when the house is erected on your plot, often within a few days.
- Handover: the final instalment after acceptance (Abnahme), once any defects are listed.
The exact split is set in the manufacturer's payment plan (Zahlungsplan). Share it with your bank before signing so the loan payouts match it, and never pay an instalment for work not yet done.
Many Fertighaus manufacturers ask for a payment guarantee (Zahlungsbürgschaft) from your bank, or a written financing confirmation, before production starts. It protects them while they build your house in the factory. Ask your bank early whether it issues one and what it costs.
Bereitstellungszinsen: The Cost of Waiting
German banks charge commitment interest (Bereitstellungszinsen) on the part of the loan not yet paid out, once an interest-free period ends. The usual rate is 0.25% per month, or 3% a year, on the undrawn amount. KfW charges less on its own loans.
This matters more for a prefab home than for a Massivhaus, because most of the money is drawn late, at delivery and assembly. A 9-month wait for the permit and a factory slot, with €250,000 undrawn after the free period, costs €625 a month.
- The interest-free period is usually 3 to 12 months, and can often be extended to 24 months when you negotiate it up front.
- Ask for a free period that covers your realistic timeline: permit, production slot and assembly.
- Sign the loan when the timeline is clear, not months before the permit.
German prefab manufacturers in the directory
KfW 297: Funding for an Energy-Efficient Prefab Home
KfW, the state development bank, supports energy-efficient new builds through programme 297, Klimafreundlicher Neubau, for owner-occupiers (programme 298 covers landlords). The key conditions in 2026:
| Item | KfW 297 in 2026 |
|---|---|
| Loan amount | Up to €100,000 per home; up to €150,000 with the QNG sustainability seal |
| Efficiency levels | Effizienzhaus 40 (with or without QNG); Effizienzhaus 55 until 31 December 2026 |
| Interest rate | Well below market rates, with a 10-year fixed period; check the current rate on kfw.de |
| When to apply | Before construction starts, through your bank, with a certified energy expert |
| Required | A valid building permit |
Prefab manufacturers are well placed for KfW funding: insulation, windows, ventilation and heat pumps are designed together in the factory, which makes Effizienzhaus 40 easier to reach. Ask each manufacturer which efficiency level its standard house reaches and whether it can provide the QNG documentation.
How Much Equity Do You Need?
German banks rarely finance the purchase costs (Kaufnebenkosten). As a rule of thumb:
- Minimum: the purchase costs from savings.
- Better terms: another 10 to 20% of the project on top.
- Full financing (110% including costs) is possible for strong incomes, but the rate is higher.
Your household budget decides the monthly payment you can carry. Banks look at net income minus living costs and existing loans, so get a pre-approval before you commit to a manufacturer.
Costs Your Bank Expects You to Cover
| Cost | Typical amount | Notes |
|---|---|---|
| Grunderwerbsteuer | 3.5% to 6.5% of the land price | Rate set by each federal state. It can apply to the house as well if land and house are sold as one package. |
| Notary and land registry | Around 1.5% to 2% of the land price | For the land purchase and the Grundschuld. |
| Foundation or basement | Varies with soil and design | Often excluded from the Fertighaus price. |
| Connections and site work | Varies by municipality | Water, sewage, power, access road. |
| Surveys and permit | Varies | Soil survey, surveyor, permit fees. |
Compare German manufacturers before you ask for a loan
A fixed price, a clear payment plan and the efficiency level are what your bank and KfW will look at.
See prefab homes in Germany →Insurance for the Build Phase
As the builder (Bauherr), you carry the risk on your plot during construction. Banks and manufacturers commonly expect:
- Bauherrenhaftpflicht: liability insurance for accidents on your site.
- Bauleistungsversicherung: covers damage to the unfinished building from storms, vandalism or construction faults.
- Feuerrohbauversicherung: fire cover during the build, often included when you take the later home insurance with the same insurer.
Choosing a Manufacturer Your Bank Will Like
Banks look at the manufacturer's track record. Quality associations help: members of the Qualitätsgemeinschaft Deutscher Fertigbau (QDF) and holders of the RAL quality mark from the Gütegemeinschaft Deutscher Fertigbau follow external quality checks. Also check that the contract states a fixed price, a construction timeline and what is excluded, especially the foundation. An independent inspection at key stages (Baubegleitung) is worth its cost.
Worked Example: A €330,000 Fertighaus Project
An illustration with round numbers, for a house at the directory's median entry price. Your figures will differ by state, plot and manufacturer.
| Item | Amount |
|---|---|
| Plot | €120,000 |
| Fertighaus (manufacturer price) | €160,000 |
| Foundation slab, connections, site work | €40,000 |
| Grunderwerbsteuer at 5% on the plot | €6,000 |
| Notary and land registry, about 2% of the plot | €2,400 |
| Total project | €328,400 |
A bank would typically want at least the €8,400 of purchase costs from savings, and would offer better terms with €40,000 to €65,000 of equity. If the house reaches Effizienzhaus 40, up to €100,000 of the loan can come from KfW 297 at its reduced rate, with the rest from the bank. Set the free period for Bereitstellungszinsen around the realistic date of delivery and assembly.
Timeline From Contract to Move-In
- Financing pre-approval and plot reservation: 1 to 2 months.
- Manufacturer contract, planning with the manufacturer's architect, sample selection: 2 to 4 months.
- Building permit: typically 2 to 6 months, depending on the municipality.
- KfW application through your bank, before any work starts.
- Foundation or basement: 1 to 2 months.
- Assembly: the shell is usually weathertight within days; interior finishing and handover follow over the next weeks.
Documents Your Bank Will Ask For
- Plot purchase contract or notary draft, land register extract and site plan.
- Manufacturer contract with building description (Bau- und Leistungsbeschreibung) and payment plan.
- Building permit, or at least the planning documents submitted.
- Cost breakdown for work outside the manufacturer contract: foundation, connections, landscaping.
- Proof of income, bank statements and proof of equity.
- For KfW: the energy expert's confirmation of the efficiency level.
Common Mistakes
- Signing the loan too early and paying months of Bereitstellungszinsen while the permit is pending.
- Applying for KfW after work starts. The application must come first.
- Forgetting the foundation when comparing Fertighaus prices.
- Buying land and house as one package without checking the tax, which can raise Grunderwerbsteuer.
For a wider view of the market, read our guide to prefab homes in Germany.
Lending rules change from one country to the next. Read the guide for the country where you will build:
Frequently Asked Questions
No. German banks value a modern Fertighaus from an established manufacturer like any other new home. The differences are the payment schedule, weighted towards delivery and assembly, and the bank guarantee many manufacturers ask for before production.
KfW 297 Klimafreundlicher Neubau is the state development bank's low-interest loan for owner-occupiers building an energy-efficient home. In 2026 it lends up to €100,000 per home, or €150,000 with the QNG sustainability seal, for Effizienzhaus 40 and, until 31 December 2026, Effizienzhaus 55.
Commitment interest charged on the part of your loan not yet paid out, after an interest-free period. The usual rate is 0.25% per month (3% a year). The free period is typically 3 to 12 months and is negotiable.
A payment guarantee issued by your bank to the manufacturer, confirming the house price will be paid. Many Fertighaus manufacturers ask for it, or for written financing confirmation, before production starts.
Banks generally expect you to pay the purchase costs (Grunderwerbsteuer, notary, land registry) from savings, and prefer another 10 to 20% of the project on top. Financing without equity is possible for strong incomes, at a higher rate.
KfW loans replace part of the bank loan at a lower rate, but they do not replace equity. Banks still look at your total savings and income.
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