Building your house in Luxembourg represents a major investment. In 2026, the average price per m² ranges from €2,500 to €4,000 excluding land. But this figure doesn’t tell the whole story: land, notary, utility connections, landscaping… The actual budget is often higher.
Average Price per m² in 2026
| Construction Type | Price/m² | 150m² House |
|---|---|---|
| Traditional construction | €2,500-3,200 | €375,000-480,000 |
| Timber frame | €2,800-3,500 | €420,000-525,000 |
| Passive house | €3,500-4,200 | €525,000-630,000 |
| Architect-designed house | €3,200-4,500 | €480,000-675,000 |
These prices include structural work, second-fix work, and standard finishes. They do NOT include land.
Factors That Influence the Cost
1. The Construction Type
- Traditional (masonry): the cheapest but takes longer
- Timber frame: faster, excellent insulation, slightly more expensive
- Passive: 20-30% extra cost but considerable energy savings
2. The Level of Finishes
- Standard: basic materials, functional fittings
- Mid-range: oak parquet, quality tiling, fitted kitchen
- Premium: high-end materials, home automation, custom finishes
3. Architectural Complexity
- Single-storey house: +10% vs multi-storey
- Complex shape (L, U): +15-20%
- Large glazed surface: +10-15%
- Complex roof: +5-10%
4. The Land
- Sloping plot: +15-25% (earthworks, retaining structures)
- Difficult soil (clay, water): +10-20% (special foundations)
- Difficult access: +5-10%
Additional Costs Not to Forget
| Item | Estimated Cost |
|---|---|
| Land (excluding construction) | €400-1,500/m² depending on location |
| Notary fees (acquisition) | 7-10% of land price |
| Architect | 8-12% of construction cost |
| Soil studies | €1,500-3,000 |
| Building permit | €500-2,000 |
| Connections (water, electricity, sewer) | €8,000-20,000 |
| Landscaping | €15,000-50,000 |
| Fencing and gates | €5,000-20,000 |
| Fitted kitchen (beyond standard) | €10,000-40,000 |
| Total additional estimated | €50,000-150,000 |
Example of a Complete Budget
150m² house, 5-are plot, outlying municipality
| Item | Amount |
|---|---|
| 500m² plot | €350,000 |
| Notary fees for the plot | €28,000 |
| Construction (€2,800/m²) | €420,000 |
| Architect (10%) | €42,000 |
| Connections | €12,000 |
| Landscaping | €25,000 |
| TOTAL | €877,000 |
Comparison by House Type
Traditional House (Masonry)
- ✅ Most affordable price
- ✅ Excellent thermal inertia
- ✅ Fire resistance
- ❌ Longer construction time (12-18 months)
- Average price: €2,500-3,200/m²
Timber Frame House
- ✅ Fast construction (8-12 months)
- ✅ Excellent thermal insulation
- ✅ Reduced carbon footprint
- ❌ Slightly more expensive
- Average price: €2,800-3,500/m²
Passive House
- ✅ Near-zero energy consumption
- ✅ Optimal comfort in summer and winter
- ✅ Maximum Klimabonus grants
- ❌ Initial extra cost of 20-30%
- Average price: €3,500-4,200/m²
How to Reduce Costs?
1. Simplify the Architecture
A rectangular house costs 15-20% less than an L- or U-shaped house. Fewer walls = lower cost.
2. Optimize the Surface Area
Each additional m² costs €2,500+. Think carefully about what you really need.
3. Reduce the Openings
Large glazed bays are beautiful but expensive. Limit yourself to what’s necessary.
4. DIY Finishes
Painting, laying parquet, fittings: real savings are possible if you have the time and skills.
5. Compare Several Builders
On tack.lu, receive up to 3 quotes to compare prices and services.
Construction Timeline
| Phase | Duration |
|---|---|
| Studies and permit | 3-6 months |
| Earthworks and foundations | 1-2 months |
| Structural work | 3-5 months |
| Watertight and airtight shell | 1-2 months |
| Second-fix work | 3-5 months |
| Finishes | 1-2 months |
| TOTAL | 12-22 months |
FAQ
Does the price per m² include the land?
No, never. The price per m² covers the construction only.
Can I build without an architect?
No. In Luxembourg, an OAI architect is mandatory for filing the building permit.
What guarantees apply to the construction?
Mandatory ten-year guarantee (10 years on the structure), two-year guarantee (2 years on equipment), guarantee of perfect completion (1 year).
How do I finance my construction?
A standard mortgage loan. Some banks offer construction loans with progressive release of funds.
