How much does a 100 m² turnkey prefabricated house cost? – 2025 Cost Estimate

Is it possible to build a 100 m² house using prefab technology at a reasonable price?

A 100 m² house is the most popular size for families with children and investors building for long-term rentals. In 2025, with high material and labor costs, more and more people are considering prefabricated technology as an alternative to traditional construction.

Below we present a realistic cost estimate for the construction of a 100 m² prefabricated house on a turnkey basis – including foundations, transport and basic equipment.

💰 Cost estimate: prefabricated house 100 m² (turnkey)

Stage	Range	Estimated cost (PLN)
Design + documentation	ready project + adaptation	12,000 – 18,000
Prefabricated structure	walls, roof, ceiling, insulation	180,000 – 220,000
Transport and assembly	delivery, crane, assembly team	20,000 – 30,000
Foundations	foundation slab with insulation	30,000 – 40,000
Installations	electrical, plumbing, ventilation	20,000 – 25,000
Interior finishing	floors, doors, painting, bathrooms	50,000 – 70,000
Kitchen and household appliances (optional)	furniture, appliances	15,000 – 25,000

➡️ Total: PLN 327,000 – 428,000 gross (depending on location, options and standard)

What does a turnkey prefab include?

In the case of prefabrication, turnkey means:

• house ready to move in,

• finished walls and ceilings,

• floors (panels, vinyl or tiles),

• complete bathroom (cabin, washbasin, toilet),

• interior doors,

• electrical installations and points,

• possibility of assembling the kitchen or preparing it (media, walls).

Optionally, you can add:

• terrace,

• air conditioning,

• recuperation,

• smart home system,

• sauna or additional module.

Comparison: prefab vs traditional construction 100 m²

Parameter	Prefabricated	Traditional construction
Lead time	2–3 months	9–18 months
Price stability	Yes	NO
Number of construction teams	1	6–10 (each separately)
Investor supervision	minimum	intense
Leasing option	Yes	rarely

Who is a 100 m² prefabricated house for?

• 👨👩👧 For families who want to move in quickly,

• 🧑💻 For investors who expect a quick return on rental,

• 🏡 For those looking for simplicity and transparent costs,

• 💸 For those who don't want to risk construction crews and delays.

Summary

A 100 m² prefabricated home is now a viable alternative to traditional construction – and often cheaper, considering the time, risk, and psychological comfort. For a budget of PLN 350,000–420,000, you can have a move-in-ready, modern, and energy-efficient home.

📩 Do you want to check the exact price of a 100 m² prefabricated house on your plot?
Write to: dorota@domkimarysia.com
🌐 See prefabricated house models at www.domkimarysia.pl

The article was prepared by Dorota Burzec – creator of the Domki Marysia™ brand