Question 1

How do a timber prefab house and a timber house differ in price?

Accepted Answer

For the choice, appearance, indoor-climate preference, budget and development plan count – some municipalities prescribe plastered façades and exclude visible wood. With a timber prefab house, the industrially prefabricated timber construction forms the load-bearing structure (usually timber frame or timber panel), and the façade is often plastered, so that the house looks like a solid-construction house. A classic timber house shows visible wood on the façade, roof overhangs and inside (log house, solid timber, cross-laminated timber) and is usually more expensive because of the higher amount of wood; both construction methods meet the GEG requirements and the KfW-40 standard in 2026.

Question 2

Which price advantages does a house in timber construction offer?

Accepted Answer

Important: durability is decided by construction, moisture protection, connection details and energy planning – budget providers often economise on the diffusion concept. Timber prefab houses bring five demonstrable advantages in 2026: firstly a short erection time of 1 to 3 days thanks to prefabricated wall elements, which saves construction costs; secondly very good insulation values with U-values from 0.15 W/(m²·K) at slim wall thicknesses; thirdly a pleasant indoor climate through the moisture-regulating effect of wood; fourthly a better CO2 footprint with around 50 percent less embodied energy than a solid-construction house; fifthly high dimensional accuracy from factory production.

Question 3

Prefab house or solid-construction house – which is the better choice?

Accepted Answer

Both construction methods meet GEG, KfW-40 and KFN-QNG; banks and insurers rate them as equivalent in 2026. There is no blanket answer – the decision depends on six factors. Prefab houses score on construction time (12 to 16 weeks from the floor slab versus 6 to 9 months for solid construction), fixed-price certainty, a predictable energy standard and a usually 10 to 20 percent lower house price. Solid-construction houses score on sound insulation, summer heat protection, floor-plan flexibility and resale value (on average 10 to 15 percent higher after 30 years).

Question 4

What does "solid prefab house" mean and what does it cost?

Accepted Answer

The square-metre price is usually 5 to 10 percent above comparable timber prefab houses. With a solid prefab house, industrial prefabrication meets solid wall materials such as brick, sand-lime brick, aerated concrete or concrete; the wall elements are produced in the factory and assembled on site within a few days. Advantages over the timber prefab house are higher thermal mass, better summer heat protection and better sound insulation; over the classic solid-construction house, shorter construction time and fixed-price certainty. Providers such as KAMPA, Town & Country or regional solid-prefab builders specialise in this.

Question 5

What does a house made of concrete cost?

Accepted Answer

Concrete prefab houses are chosen in 2026 above all in the commercial sector and for special sound-insulation or protection requirements. A concrete prefab house uses prefabricated reinforced-concrete wall and ceiling elements, which are cast in the factory and assembled on site. Advantages are high robustness, very good sound insulation, a service life usually over 100 years, and predictable fire and burglary protection. Disadvantages are the higher wall weight, the lower insulation effect per wall thickness (additional external insulation needed) and a usually 10 to 20 percent higher price than the timber prefab house.

Question 6

Does a prefab house from Poland pay off in price terms?

Accepted Answer

The price advantage only remains if a German building surveyor checks the contract before signing. Because of lower labour and production costs, a prefab house from Poland can be 10 to 25 percent cheaper than a comparable German model – provided the Polish provider meets all German requirements: structural analysis to Eurocode with German stability proof, energy certificate under the GEG, the state building code of the respective federal state, a German building application, assembly by tradespeople insured in Germany, at least five years' warranty under the BGB, and a completion guarantee.

Question 7

Which requirements must a prefab house from Poland meet in Germany?

Accepted Answer

A TÜV or DEKRA surveyor should accompany the factory acceptance in Poland, so that the price advantage is not lost through rectification. If a house manufactured in Poland is erected in Germany, German building law applies in full. Required are: 1. a building application under the state building code with all proofs; 2. stability proof to Eurocode with German verified structural analysis; 3. an energy certificate under the GEG; 4. construction management by construction management licensed in Germany; 5. conformity of all building products with German standards (DIN, CE marking); 6. fire-protection proof under DIN 4102 or EN 13501; 7. sound-insulation proof under DIN 4109; 8. warranty under German BGB works-contract law.

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