Calculate your 2026 prefabricated house budget including the building package, foundation, design, transport and external connections. Official approximate costs do not replace a sales quotation.
Published:
2026 guide · Content updated: 14 October 2026.
Why is a 2020 calculation insufficient for 2026?
Materials, labour, transport and design scope can change over the years. Adding a general increase rate to an old house price does not reliably establish its ready-to-use cost in 2026. This article replaces the old 2020 title; a new budget must be based on current, dated quotations.
Which items should the 2026 budget table include?
| Budget item | Clarification to request in the quotation |
|---|---|
| Building package | Layout, area, storeys, wall and roof characteristics |
| Design and permit procedures | Required services, responsible parties and scope |
| Site and foundations | Work and quantity list prepared for the ground conditions |
| Assembly and transport | Address, access, crew and lifting requirements |
| External infrastructure | Power, clean water and waste water connections |
| Usage equipment | Kitchen, bathroom, heating/cooling and selected extras |
| Taxes and changes | Included taxes, option costs, validity period |
Do not confuse official unit cost with selling price
the Ministry's 2026 notice on approximate building unit costs, is a resource for calculating architectural and engineering service fees. It cannot be used as a manufacturer's selling price for a house model or the total completed cost on your own plot. Building class and cost scope change the results of different calculations.
How do you calculate the total?
Total project budget = current building quotation + site/design/logistics/infrastructure/equipment work excluded from the quotation + taxes separately specified in the scope. Do not add the cost of included work again. Track unclear items separately. To check by area, divide the total by the area measured using the same definition; the result is not another house's selling price per m².
Getting a 2026 quotation from Profabrik
Verified Profabrik prices have not been added to this guide as fixed figures. your selected model, together with the province/district, plot access, layout requirements and requested delivery scope submit to the quotation team. A quotation with a list of included and excluded work and a validity date is essential to keeping the budget current. Clarify local permit conditions with the relevant authority before installation.
Frequently asked questions
What is the exact cost of a prefabricated house for 2026?
An exact amount cannot be given before model, technical package and site work are defined. Build your project budget by combining the current building quotation with work outside it.
Are official approximate building costs house selling prices?
No. Official approximate costs for calculating service fees and the manufacturer's model sales quotation serve different purposes and scopes.
Can I adjust a 2020 price for inflation?
This may provide a rough historical comparison; it does not replace a 2026 model and site quotation.
How do I calculate the budget for a 100 m² house?
First define gross/net area. Combine the current model quotation with foundations, design, external lines and other excluded work on the same basis.