Prefab House Selection Appointment: Process, Surcharge Traps and Checklist
In the selection appointment the base price of your prefab house becomes the actual final price – and this is exactly where the biggest cost traps wait. This guide explains the process at the selection centre, names typical surcharges with concrete amounts and separates standard from optional equipment. With negotiation tips and a preparation checklist you keep to your budget.
At the selection meeting (Bemusterung), the base price of your prefab house turns into the real final price – and it is precisely at this point that many builders lose track of their budget. In the manufacturers' selection centres you choose between thousands of tiles, floors, doors, sanitary fixtures and specification variants. What sounds tempting harbours real cost traps: anyone who lets themselves drift quickly blows the budget by €15,000 to €40,000. This guide explains what the selection meeting is, how the appointment proceeds, which surcharge traps are typical in 2026 and how you can save cleverly with good preparation and the right negotiation tips. You can gather first ideas for the specification already during the show-house park visit.
What happens during the selection meeting of a prefab house
Short answer: The selection meeting is the appointment at which, after concluding the contract, you concretely determine all the specification details of your prefab house: floor coverings, tiles, internal doors, sanitary fixtures, electrical equipment, heating technology and much more. From the standard budget defined in the contract you decide either for the standard-compliant variant or – for a surcharge – for a higher-quality one. At the end of the selection meeting, the binding final price of your house is fixed.
The selection meeting can be understood as the "heart" of individual house design – and at the same time as the financially trickiest step after the signing of the contract. Unlike the shell, whose costs are usually fixed, here you decide on hundreds of individual items. Every small upgrade – a finer floor covering, a walk-in shower, more sockets – adds up. Where the selection meeting sits in the overall process is shown by the guide on the house-building process. Anyone who has previously visited a show house already knows many materials from the show house.
The process in the selection centre – step by step
Short answer: The selection meeting usually takes place in the manufacturer's central selection centre and, depending on the scope of the specification, lasts one to three days. A selection adviser guides you systematically through all trades – from floors to bathrooms to electrics. You see sample surfaces, choose from categories and continuously receive a cost breakdown. At the end you sign the selection list, which becomes part of the construction contract.
Large manufacturers operate selection centres in which complete sample bathrooms, floor displays and door samples are set up at full size. The appointment is tightly scheduled: the adviser works through a list of trades, and for each item there is a standard variant (included in the price) as well as higher-quality categories for a surcharge. Make sure that every decision appears immediately in the cost list – that way you keep an eye on the running final price.
- Appointment preparation: you receive in advance an overview of the trades and your standard budget per item.
- Welcome and explanation: the adviser explains the procedure and the difference between standard and surcharge.
- Trade walk-through: floors, tiles, doors, sanitary, electrical, heating – item by item.
- Running cost breakdown: every upgrade is documented immediately with an amount.
- Conclusion: you check the selection list, clarify open points and sign in a binding way.
Common surcharge traps including amounts (guide values 2026)
Short answer: The biggest cost traps in 2026 are higher-quality floors and tiles, walk-in showers, additional sockets and light outlets, designer sanitary fixtures, electric roller shutters and smart-home modules. Individually the amounts seem harmless, but in total they quickly push the price €15,000 to €40,000 over the standard budget. Therefore, for each item, check whether the added value justifies the surcharge.
Common selection-meeting surcharges compared to the standard (guide values 2026)
| Item | Common surcharge | Note |
|---|---|---|
| Parquet instead of standard laminate | €3,000–12,000 | depending on area and wood type |
| Walk-in shower instead of shower tray | €800–2,500 per bathroom | popular, but expensive |
| Additional sockets / light outlets | €40–120 each | adds up strongly |
| Designer sanitary fixtures (brand) | €2,000–8,000 | versus the standard range |
| Electric roller shutters | €300–600 per window | with 12 windows quickly €5,000 |
| Higher-quality internal doors | €150–500 per door | design and surface |
| Smart-home package | €6,000–20,000 | depending on scope |
| Larger/higher-quality tiles | €1,500–6,000 | format and laying method |
How many underestimate the sum of the small amounts
Individually, "just €80 per additional socket" sounds harmless. But 20 extra sockets, 12 electric roller shutters, a higher-quality floor and the walk-in shower in two bathrooms together easily add up to €15,000 and more. Therefore keep your own running total during the selection meeting and set a clear ceiling for special requests in advance – that way you keep control.
Compare offers and services before the selection meeting
The clearer the construction and specification of works, the fewer surprises you experience at the selection meeting. Request offers from suitable prefab providers free of charge and compare how much specification is already included in the standard – that noticeably lowers later surcharges.
Standard or optional specification: the decisive distinction
Short answer: Standard specification is everything that is included in the agreed price according to the construction and specification of works. Optional specification is any upgrade – it costs extra. The key to a budget-faithful selection meeting lies in knowing exactly, before the appointment, what the standard comprises. Only then do you recognise immediately whether a choice is cost-neutral or triggers a surcharge.
A common misunderstanding: many builders assume that the materials shown in the show house or the brochure are standard – in fact they are almost always the higher-end variant. Therefore read the construction and specification of works line by line and mark all the items where the standard falls short of your expectations. That is exactly where you will spend money at the selection meeting – budget these amounts in advance.
Standard or optional specification? Some examples (guide values 2026)
| Trade | Typical standard | Common upgrade |
|---|---|---|
| Floor covering | Laminate / vinyl mid-range | Real-wood parquet, natural stone |
| Bathroom tiles | Standard format, base range | Large format, design range |
| Shower | Shower tray with wall | Walk-in, level entry |
| Internal doors | white, smooth | veneered, with glass |
| Heating | Air-to-water heat pump | Brine-to-water, PV coupling |
| Electrical | Basic equipment per room | Additional outlets, smart home |
Around heating and energy, a scrutinising look at the statutory requirements pays off: which requirements apply in 2026 and which technology pays off is explained by the GEG guide 2026. In networking your house, the smart-home guide supports the decision on which modules are worth the surcharge.
Negotiation tips: how to push down the selection-meeting costs
Short answer: Even at the selection meeting, negotiating pays off. Ask for package prices instead of individual surcharges, have several offer variants provided and, for individual trades, compare doing it yourself against contracting out. Set clear priorities: invest where it counts daily (floors, bathrooms) and save on invisible or easily-retrofittable items. When making decisions, deliberately allow yourself time to think.
- Ask for package prices – specification packages are often cheaper than the sum of the individual surcharges.
- Prioritise: invest in floors and bathrooms, save on invisible items.
- Check doing it yourself: floor coverings, painting or outdoor facilities can often be done yourself.
- Postpone what is retrofittable: terrace, carport or smart-home extension can be added later more cheaply.
- Take time to think: do not make expensive decisions spontaneously, but recalculate at home.
- Have several variants calculated and confirmed in writing before you sign.
Think about subsidies and financing from the start
Some higher-quality specification – for example a more efficient heating technology or a photovoltaic system – can be eligible for subsidies and amortises over the operating costs. Therefore check before the selection meeting which grants and loans come into question. An overview is provided by the page Subsidies. That way you decide not by looks alone but by overall cost-benefit.
Checklist for preparing the selection meeting
Short answer: The most effective safeguard against cost traps is preparation. Set an additional budget for special requests, read the construction and specification of works carefully, collect reference images of your wishes, research prices independently and bring a second person to the appointment. That way you go into the selection meeting with clear priorities and a firm ceiling – and retain sovereignty over the final price.
- Set an additional budget for optional specification (e.g. 5–10 % of the house price) and treat it as a ceiling.
- Read the construction and specification of works in full and mark all standard items.
- Collect reference images and desired materials so you can decide quickly at the appointment.
- Research prices for floors, tiles and sanitary independently in advance to put surcharges into context.
- Create a priority list: where may it be high-quality, where is the standard enough?
- Bring a second person – a second pair of eyes protects against expensive spontaneous decisions.
- Keep your own running total during the appointment and compare it with the ceiling.
- Sign nothing under time pressure – note open points and clarify them at leisure.
Anyone who wants to play through the total costs of their house in advance will find a useful tool in the cost calculator ; how the base price stands before the special requests is shown by the current prefab house prices 2026. An overview of current houses from various providers, including their specification standards, is provided by the page Houses. And if you are interested in an existing property instead of a new build, the guide on modernising a prefab house helps with estimating the costs.
Find providers with a transparent specification of works
A high standard already in the base price protects you best against expensive surcharges. We connect you free of charge with suitable prefab providers whose construction and specification of works you can compare at leisure – that way you know exactly, before the selection meeting, what you will later pay extra for.
What does your dream house really cost?
Request suitable quotes from vetted manufacturers for free and compare the prices per square metre for your construction project.
Compare house prices nowImportant questions briefly explained
The most common price questions around Prefab House Selection Appointment – answered concisely by the Prefabricated House editorial team (as of 2026).
