Prefab House Costs Without a Plot: Prices per Finishing Stage
What does a prefab house cost without a plot? This guide quantifies the pure house costs in 2026 as a €/m² range per finishing stage – from the shell house to turnkey – and works it through in an example table for 100, 120 and 140 m². Plus: which additional costs are missing from the total price and how much own work really saves.
Anyone who wants to plan the costs of a prefabricated house realistically has to separate two things: the pure house price and the price for the plot. This guide quantifies what a prefabricated house costs in 2026 without a plot per fit-out stage – as a range per square metre and in an example table for 100, 120 and 140 m². This way you immediately recognise how strongly the chosen fit-out stage shifts the final price and what budget you should reckon with for the house alone.
What does a prefabricated house cost without a plot?
Short answer: In 2026, a prefabricated house costs, without a plot and depending on the fit-out stage, around €1,200 to €2,900 per square metre of living space. A fit-out house (Ausbauhaus), where you take on the interior fit-out yourself, starts at about €1,200 per m²; a turnkey house usually lies between €2,100 and €2,900 per m². For a house with 120 m², that means pure house costs of roughly €144,000 to €348,000 – expressly without plot, servicing and ancillary construction costs, which are added separately.
These ranges describe exclusively the building. The plot price is so regionally different that it can influence the total costs more strongly than the house itself. Therefore the separate consideration makes sense. A broader price overview with further construction forms is bundled by the page prefabricated house prices.
Why is the separation of house and plot price so worthwhile? Because both figures depend on completely different factors. The house price depends on area, fit-out stage, fittings and manufacturer – items that you can control yourself. The plot price, on the other hand, arises from location, standard land value and demand; you have hardly any influence on that. Anyone who thinks of both amounts in one sum quickly loses track of which lever they can use when saving. That is precisely why manufacturers work with square-metre prices for the house and deliberately leave the plot out.
A further reason for the separate consideration is the financing. Banks assess plot and building differently and demand a clear breakdown for the construction loan. Anyone who knows the pure house price can structure the financing cleanly and recognises early whether budget and dream house fit together – even before a specific plot comes into play.
How do the fit-out stages differ in price?
Short answer: The fit-out stage is the biggest cost lever with the prefabricated house. With the fit-out house, the manufacturer delivers the weatherproof shell and you take on the interior fit-out yourself – that lowers the price, but demands time and manual skill. The house ready for building services additionally includes the installed building services, while surfaces such as flooring and painting remain open. Turnkey means ready to move in: you move in without lifting a finger yourself. Between the cheapest fit-out house and the comfortable turnkey solution there is easily more than €1,000 per square metre.
Prefabricated house per fit-out stage – pure house costs per m², as of 2026 (without plot)
| Fit-out stage | Price per m² | Scope of services | Own labour |
|---|---|---|---|
| Kit/fit-out house | €1,200–1,700 | weatherproof shell | high |
| Ready for building services | €1,700–2,200 | building services installed | medium |
| Turnkey | €2,100–2,900 | ready to move in | none |
How the concepts differ in detail and which trades are included in each is explained by the guide fit-out stages. When comparing quotes, make sure that the fit-out stage is identical – otherwise you compare prices that do not represent the same level of services.
The fit-out house is the classic way to save money with own labour. The manufacturer delivers the load-bearing structure, the insulated roof and the windows, so that the house is closed up weatherproof. You take on the interior fit-out, electrics, sanitary work and surfaces yourself or commission individual tradespeople. That noticeably lowers the purchase price, but demands time, organisation and manual skill. Anyone who does not have these resources may in the end pay more for individually commissioned trades than for a bundled turnkey package.
The house ready for building services lies in between: heating, ventilation, electrical and sanitary installation are installed, but the visible surfaces – floor coverings, internal doors, painting – are left to you. This stage is suitable for builders who do pitch in but do not trust themselves to do the technically demanding trades themselves. The turnkey house, finally, takes all the work off your hands and offers the highest planning security, because a single contract partner is responsible for the entire scope of services.
Example: 100, 120 and 140 m² per fit-out stage
Short answer: For 100, 120 and 140 m², the square-metre ranges result in very illustrative price frames. A fit-out house with 100 m² lies at around €120,000 to €170,000, a turnkey house with 140 m², on the other hand, at about €294,000 to €406,000. The following table shows all combinations of area and fit-out stage – each without plot, servicing and ancillary construction costs.
Prefabricated house costs without a plot by area × fit-out stage, as of 2026
| Living space | Fit-out house | Ready for building services | Turnkey |
|---|---|---|---|
| 100 m² | €120,000–170,000 | €170,000–220,000 | €210,000–290,000 |
| 120 m² | €144,000–204,000 | €204,000–264,000 | €252,000–348,000 |
| 140 m² | €168,000–238,000 | €238,000–308,000 | €294,000–406,000 |
How to read the table correctly
The values are guide values as a range and describe only the house. A specific quote can lie above or below – depending on fittings, roof shape, region and manufacturer. For the total costs, always add the plot and the ancillary construction costs.
It is striking how strongly the fit-out stage affects the price within the same area: at 120 m² there is around €200,000 difference between the cheapest fit-out house and the comfortable turnkey house. This shows that the question of the fit-out stage is often more important for the budget than a few square metres more or less of living space. Anyone calculating tightly should therefore first check how much own labour is realistically possible, and only then decide on the size.
Compare house costs – without a plot, but with a fixed price
The range between the fit-out house and the turnkey house is large. Request quotes from suitable manufacturers free of charge and without obligation and compare the pure house price of your desired fit-out stage at a transparent fixed price.
Which costs are missing from the total price?
Short answer: The pure house price without a plot is only one part of the total budget. What is missing above all is the plot itself, the servicing, the base slab or the cellar as well as the ancillary construction costs of roughly 15% to 20% of the house price. With a plot purchase, real estate transfer tax, notary and land register of around 10% to 12% of the plot price are added. Anyone who only plans for the house price significantly underestimates the project.
- Plot price – regionally very different and often the largest item.
- Servicing: water, electricity, sewer, telecommunications.
- Base slab or cellar, depending on building ground and preference.
- Ancillary construction costs of about 15–20% (permit, statics, surveys, insurance).
- Ancillary purchase costs for the plot: real estate transfer tax, notary, land register.
- Outdoor facilities such as driveway, terrace and garden.
How these items add up to a realistic total budget is shown by the overview of the house-building costs. Anyone who wants to save when building will additionally find notes in the guide building cheaply. You can calculate your personal budget in advance with the cost calculator Calculate prefabricated house costs.
An illustrative worked example: if your turnkey house with 130 m² costs around €300,000, roughly €45,000 to €60,000 in ancillary construction costs alone are added. If you then factor in the base slab, servicing and outdoor facilities, you quickly lie €70,000 to €100,000 above the pure house price – and that is still without a single square metre of plot. This order of magnitude makes clear why the pure consideration of the house price can be misleading. Anyone who plans their project seriously draws up a complete cost breakdown from the start and adds a reserve for unforeseen items.
How much does own labour really save?
Short answer: Own labour can lower the house price by a low to medium double-digit percentage, because you save on wages. The greatest saving potential lies in labour-intensive but technically simple trades such as painting, floor laying or the interior fit-out. But own labour is not a free saving: it costs time, requires tools and materials and carries the risk of mistakes that later have to be corrected expensively. Calculate realistically how many hours you can actually put in over months.
Banks recognise the so-called “muscle mortgage” (Muskelhypothek) – that is, own labour as a substitute for equity – only to a limited extent, because it is hard to assess. Therefore do not base the entire budget on own labour, but keep a financial reserve. Anyone who is unsure starts with clearly delimitable work and leaves the critical trades to specialist firms. Further saving levers beyond own labour – for example with the floor plan, roof shape and fittings – are bundled by the guide building cheaply.
Plan own labour honestly
A proven rule of thumb: only plan for the own labour that you can still manage even under time pressure, illness or work pressure. Overestimated own labour leads to construction delays and, in the worst case, to expensive emergency solutions. Less, but reliably provided own labour is the safer calculation.
Why do house costs fluctuate so much?
Short answer: Even with the same area and fit-out stage, the square-metre price fluctuates, because roof shape, fittings, building services and floor plan vary strongly. A simple gable roof is cheaper than a hipped roof, a compact cubature cheaper than many projections and recesses. High-quality floors, large bathrooms, a heat pump with photovoltaics or special windows drive the price up. That is why the figures given are ranges and not fixed prices.
- Roof shape: a gable roof is cheaper than a hipped or pyramid roof.
- A compact footprint lowers the envelope area and thus the costs.
- The fittings of floors, bathrooms and doors help determine the price level.
- Building services such as heat pump, ventilation and PV noticeably affect the price.
- Own labour lowers the costs, but shifts effort and risk onto you.
Building services in particular have developed into a decisive price factor in recent years. A heat pump, a ventilation system with heat recovery and a photovoltaic system including storage raise the square-metre price, but in return lower the later operating costs and improve funding eligibility. Whether the additional costs are worthwhile depends on energy prices, service life and individual funding. That is why it makes sense to assess the building services not in isolation by the acquisition price, but over the entire period of use.
Funding possibilities for energy-efficient new builds can ease the financing; a neutral overview is provided by the KfW. On the contractual framework conditions, the Verbraucherzentrale (consumer advice centre) provides independent information. Before you commit, a neutral comparison via the provider overview is worthwhile.
Plan your prefabricated house at a clear fixed price
Whether fit-out house or turnkey: a transparent fixed price with a complete building specification creates planning security. We connect you free of charge and without obligation with suitable manufacturers so that you know the pure house price before you firmly plan for the plot.
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