100m² House Construction Cost in Vietnam 2026 — Detailed Estimate
The cost of building a 100m² house is a question millions of Vietnamese families ask when planning a new home. With a 100m² lot — the most common in urban and suburban areas — total construction cost in 2026 ranges from 500 million to over 2 billion VND depending on floor count, finishing tier, and region. This article breaks down the cost line by line so you can plan with clarity before starting construction.
Use our house cost estimator for a number based on real material prices in your province.
1. 100m² House Cost Overview — 2026
Build cost for a 100m² house depends heavily on house type. A single-floor grade-4 house is far cheaper than a 2–3 floor townhouse on the same lot. Summary below:
| House type | Floor area | Turnkey unit price (VND/m²) | Estimated total |
|---|---|---|---|
| Grade-4, metal roof | ~100m² | 4,600,000 – 5,300,000 | 500M – 700M |
| Grade-4, Thai-style tile roof | ~100m² | 5,500,000 – 6,500,000 | 650M – 850M |
| 1 ground + 1 floor | ~200m² | 5,500,000 – 6,800,000 | 1.2B – 1.8B |
| 1 ground + 2 floors | ~300m² | 5,800,000 – 7,500,000 | 1.8B – 2.5B |
| Mini villa | ~200–250m² | 7,000,000 – 9,000,000 | 1.8B – 2.5B |
Note: Turnkey prices include structural + finishing. They exclude land, permits, architectural design, and furniture.
2. Cost Breakdown by Line Item
To understand how much it costs to build a 100m² house, look at the line-item allocation. Example: 1 ground + 1 floor on a 100m² lot, mid-range unit price ~6,000,000 VND/m².
2.1. Foundation (15–20% of total)
The foundation determines structural durability. Cost depends on soil:
- Isolated footing: 120M – 180M VND — suitable for firm, stable soil
- Strip footing: 150M – 250M VND — most common for townhouses
- Pile foundation: 200M – 400M VND — needed for weak or flooded soil
In weak-soil areas (riverside, delta), piling can take 25–30% of total build cost. Commission a soil survey before design to avoid surprises.
2.2. Superstructure (25–30%)
Walls, columns, beams, slabs — primary load-bearing elements. Main cost drivers:
- Steel: 40–50% of superstructure. Current price ~14,300 – 15,200 VND/kg. See steel prices today.
- Cement: 80,000 – 120,000 VND per 50kg bag. See cement prices today.
- Sand & stone: Masonry sand 205,000 – 430,000 VND/m³; 1×2 stone 295,000 – 365,000 VND/m³.
- Brick: Hollow brick 1,090 – 1,100 VND/unit; block brick 5,500 – 12,000 VND/unit.
2.3. Roof (10–15%)
- Metal sheet roof: cheapest, ~150,000 – 250,000 VND/m² (incl. frame)
- RC slab roof: 400,000 – 600,000 VND/m² — durable, higher cost
- Thai-style tile roof: 300,000 – 500,000 VND/m² — aesthetic, heat-resistant
2.4. Finishing (30–35%)
The most variable line — depends on taste and budget:
- Plaster & paint: 80M – 150M VND
- Tiles: 60M – 200M VND (standard ceramic vs premium granite)
- Electrical: 40M – 80M VND
- Plumbing: 30M – 60M VND
- Doors (wood/aluminum/glass): 50M – 150M VND
- Gypsum ceiling (optional): 20M – 50M VND
2.5. Labor
Construction labor in Vietnam runs 1,500,000 – 1,700,000 VND/m² of floor (labor only, excluding material). In HCMC and Hanoi labor is 10–15% more than in provinces.
3. Cost by Region
Material prices and labor vary by region. Estimate for 1 ground + 1 floor on a 100m² lot, mid-range:
| Region | Unit price (VND/m²) | Estimated total | Note |
|---|---|---|---|
| Ho Chi Minh City | 6,500,000 – 7,500,000 | 1.4B – 1.8B | Highest labor & transport |
| Hanoi | 6,200,000 – 7,200,000 | 1.3B – 1.7B | High land + overhead |
| Da Nang, Hai Phong | 5,800,000 – 6,800,000 | 1.2B – 1.6B | Tier-1 cities, moderate |
| Other provinces | 5,200,000 – 6,500,000 | 1.1B – 1.5B | Labor 10–20% cheaper |
Check material prices at your province via construction material prices for a sharper number.
4. Shell vs Turnkey
Shell construction
Structural only: foundation, columns, beams, slabs, walls, roof. Unit price: 3,500,000 – 4,100,000 VND/m². You handle all finishing (plaster, paint, tile, electrical, plumbing, doors).
Turnkey
Everything from shell through finishing, move-in ready. Unit price: 5,500,000 – 8,000,000 VND/m² depending on tier. Convenient but pick a reputable contractor to control material quality.
5. Factors Affecting Cost
5.1. Foundation type
Hardest to predict. Weak soil can add 100M – 300M VND in piling. Always survey the soil before breaking ground.
5.2. Floor count
Each extra floor adds proportional floor area. A 1-ground + 1-floor house has ~2× the floor area of grade-4 but cost isn't strictly 2× since foundation and roof are counted once.
5.3. Finishing materials
Gap between basic and premium tiers can hit 40–60%. Example: regular ceramic tile (100,000 VND/m²) vs imported granite (500,000+ VND/m²) alone can differ by hundreds of millions.
5.4. Site location
Houses in narrow alleys where trucks can't enter add 200,000 – 300,000 VND/m² in transport cost. Downtown labor is 10–15% more than suburbs.
5.5. Material price swings
Material prices shift quarterly. Early 2026, steel rose ~400–600 thousand VND/ton and sand climbed 10–30% on supply shortage. Watch prices on Vật Giá Top to time major purchases.
6. Cost-Optimization Tips
Plan finances clearly
Use our house cost estimator before starting. Reserve 10–15% for contingencies. Most contractors recommend this.
Pick the right season
Avoid rainy season (Jun–Oct in the South, Sep–Dec in the North) — delays drive overruns. Labor rates are also steadier in the dry season.
Compare multiple bids
Get at least 3 itemized bids. Compare same scope and material specs. Don't anchor on the total — scan each line for hidden assumptions.
Buy key materials yourself
If time permits, buy cement/steel/brick yourself at market rates instead of letting the contractor source them. You control quality and save 5–10% on material. Track VLXD prices today to buy at the right time.
7. Sample Estimate — 1 Ground + 1 Floor on 100m²
Reference estimate for a 1 ground + 1 floor house, ~200m² floor, mid-tier, provincial area (unit ~6,200,000 VND/m²):
| Line item | Share | Estimated cost |
|---|---|---|
| Foundation (strip) | 18% | 220M |
| Superstructure (columns, beams, slabs, walls) | 28% | 345M |
| Roof | 12% | 150M |
| Plaster & paint | 10% | 125M |
| Tiles | 10% | 125M |
| Electrical | 5% | 62M |
| Plumbing | 4% | 50M |
| Doors (aluminum glass / wood) | 8% | 100M |
| Design + permits | 5% | 63M |
| Total | 100% | ~1.24B |
8. Cost by Specific House Type
Grade-4 on 100m²
Cheapest option. ~100m² floor (130–140m² if you include foundation/roof/yard in pricing), turnkey 500M – 750M VND. More detail: Grade-4 house cost.
Townhouse 1 ground + 1 floor
Most popular for families of 4–6. ~200m² floor, turnkey 1.2B – 1.8B VND. Ground floor typically has living, kitchen, 1 bedroom; upper floor has 2–3 bedrooms.
Townhouse 1 ground + 2 floors
For larger families or rental income. ~300m² floor, turnkey 1.8B – 2.5B VND. Foundation and beams must be sized for 3 floors.
9. Common Mistakes When Estimating 100m² House Cost
- Missing the conversion coefficient: Many use only usable floor area and forget conversion factors for foundation, roof, balcony, yard. See Construction area formulas.
- No contingency: Add 10–15% for unforeseen costs.
- Picking the cheapest bid: Low unit prices often mean material cuts or rushed work. Compare itemized specs, not totals.
- Not tracking material prices: VLXD prices shift continuously. Fixed-price contracts without market awareness invite material quality cuts when prices rise.
- Forgetting non-construction cost: Permits, design, supervision, utility connection fees can add 30M – 80M VND.
10. FAQ
How much does a single-floor 100m² house cost?
Grade-4 with metal roof, basic tier: ~500M – 600M VND. Thai-style tile or RC slab: 650M – 850M VND. Rural provinces can be 10–15% cheaper.
How much does a two-floor 100m² house cost?
1 ground + 1 floor, mid-tier: ~1.2B – 1.6B VND. Premium: 1.6B – 2.0B VND.
Shell or turnkey?
If you have time and know materials: shell + DIY finishing saves 10–20%. Otherwise turnkey is safer — just require a detailed line-item contract.
Is my contractor's quote fair?
Compare to the house price list 2026. Cross-check material prices at construction material prices. If a bid is 20% below market average, scrutinize the material specs in the contract.
Enter area, pick a template and province — our estimator uses real local material prices. Or sketch a floor plan for a more visual estimate.