In 2026, €100,000 net buys a turnkey 24 m² prefab home or a 48 m² one you finish yourself, from BIOBUILDS' published list prices. €200,000 buys a turnkey 95 m² family home with three bedrooms. €300,000 covers the largest model, 142 m² turnkey, with money left toward site costs. All figures below are published BIOBUILDS list prices, net of VAT, with DAP delivery and cargo insurance included.
Most budget guides answer "what can I afford?" with a per-square-meter range and a quote form. This guide answers it with a price list. BIOBUILDS, the European manufacturer behind this guide, is among the most competitively priced in the certified segment. It publishes every model price, so each budget tier below maps to specific homes, not estimates. And because an honest budget guide has to say both things, each tier also states plainly what that money does not buy.
Scope, in one paragraph: this article answers a single question: what your budget buys. It assumes the 2026 baseline we argue for elsewhere: a timber-frame structure with real energy certification. For the full price breakdown per model, finish level, and country, read the prefab price guide. For everything outside the house itself, including land, foundation, permits, and utility hookups, read the site-cost guide.
How far does a prefab budget go in 2026?
The full list, current as of July 2026:
| Model | Size | Bedrooms | Semi-finished | Turnkey |
|---|---|---|---|---|
| Nest | 24 m² | 1 | from €39,800 | from €59,800 |
| Wanderlust | 48 m² | 1-2 | from €59,800 | from €109,800 |
| Serenity | 95 m² | 3 | from €109,800 | from €189,800 |
| Sanctuary | 142 m² | 4-5 | from €159,800 | from €279,800 |
Every model, at either finish level, is built on the same Passivhaus-certified system: 35 cm timber-frame walls, STEICO wood-fiber insulation, triple-glazed windows with Passivhaus-certified frames, and MVHR ventilation. The budget decides size and finish level, never the construction quality underneath.
Three things are included in these prices: the complete home in standard configuration, DAP delivery to your destination, and all-risks cargo insurance during transit. Three are not: VAT, land, and site costs (foundation, crane, hookups, permits). Each list price is indicative; the personalized offer confirms your configured figure before signing, and the contract then holds it firm for 90 days.
Between €100,000 and €300,000, each additional €100,000 roughly steps you up one size class: from 24 m² turnkey to 95 m² to 142 m². Because the price per square meter falls as the home grows (€2,490/m² at 24 m², €1,970/m² at 142 m²), stretching to the next size class buys more home per euro than adding extras to a smaller one.
The €100,000 tier: turnkey 24 m² or 48 m² you finish yourself
At €100,000 net, you have two realistic configurations:
- Nest 24 m² turnkey, €59,800. One bedroom, move-in ready, with roughly €40,000 of headroom. That headroom exceeds the Nest's full-scope site-cost ceiling of about €26,300 (every professional service included; most projects land well below it), so a €100,000 budget carries a turnkey Nest through permits, foundation, and hookups with margin to spare.
- Wanderlust 48 m² semi-finished, €59,800. Twice the floor area for the same money, with one to two bedrooms. It arrives with the complete envelope, windows, wiring, plumbing, and ventilation installed; you handle the surface finishing yourself: painting, installing wall panels, and laying parquet. The remaining €40,000 has to cover both that finishing and the site costs (full-scope ceiling about €40,000, usually far less in practice).
- Nest 24 m² semi-finished, €39,800 is the entry point if the budget must also absorb land.
What €100,000 does not buy: a turnkey 48 m² home. The Wanderlust turnkey lists at €109,800, which is €9,800 over, and the list price is public and identical for every buyer, so there is no negotiating across that line. It also does not buy any 95 m² home at any finish level, and it does not include land anywhere in Europe.
The €200,000 tier: a 95 m² family home, keys in hand
This is the tier where the BIOBUILDS list starts covering a full family home:
- Serenity 95 m² turnkey, €189,800. Three bedrooms, finished interior, at €2,000/m². The €10,200 left over will not cover a fully delegated site package (Serenity's full-scope ceiling is about €57,100), so with this configuration, plan site costs as a separate line sized to your plot.
- Sanctuary 142 m² semi-finished, €159,800. The largest model has four to five bedrooms. Taking the do-the-finishing-yourself route leaves about €40,200 for finishing and site work.
- Wanderlust 48 m² turnkey, €109,800, plus its entire €40,000 full-scope site ceiling, still leaves roughly €50,000 toward land. At €200,000, this is the only configuration that can fit land, house, and site within one budget.
What €200,000 does not buy: the Sanctuary turnkey (€279,800). It also does not buy the Serenity turnkey with a fully delegated professional site package on top; that combination reaches about €246,900 net at the ceiling, so either the site scope stays lean or the budget grows.
The €300,000 tier: the whole catalog
At €300,000 net, the list stops being the constraint:
- Sanctuary 142 m² turnkey, €279,800. Four to five bedrooms at €1,970/m², the lowest per-square-meter price on the list, with about €20,200 remaining for site costs. That fits a lean, owner-managed site scope; a fully delegated one at the €71,500 ceiling would push the total past €350,000, so at this tier the site strategy, not the house, decides whether you stay inside budget.
- Serenity 95 m² turnkey plus everything. €189,800 for the home, the full €57,100 professional site ceiling, and still around €53,000 left toward land. The most comfortable all-in configuration at this tier.
What €300,000 does not buy: land, which comes on top in every configuration above, or a basement. These homes stand on ground-screw foundations, which are faster and cheaper than excavated concrete but leave no room for a cellar; the foundation guide covers what that changes. Above the Sanctuary, more budget buys options and site scope, not a larger home from the catalog.
Budget rules that apply at every tier
- Add VAT to everything. List prices are net. Germany adds 19%, Austria 20%, Romania 21%, on the house and the site costs alike.
- Cash flow follows production, not the calendar. Payments are staged: 10% at signing, 40% at production-slot allocation, 40% at production start, and the final 10% when the home arrives at your destination, inspected on the trailer before unloading.
- The price you sign is the price you pay. The personalized offer confirms the configured figure; the contract holds it firm until production starts, for up to 90 days.
- Site costs are a range, not a number. The full-scope ceilings quoted above (€26,300 to €71,500 by model) assume you hire professionals for every service; most projects land well below them, often at less than half.
- The factory does not care about your tier. Whichever budget you land on, production takes about 3 weeks, and every home carries the same 5-year structural warranty plus the 24-month legal warranty.
The fastest way to test a real configuration against your budget is the online configurator: it prices every model, finish level, and option live, and delivery to your destination is part of the displayed price.
