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Building Construction Cost Calculator
Get a complete itemised cost estimate for your building project — from foundation to painting. Works for residential, commercial, and mixed-use construction. Supports Economy, Standard and Premium grades. This construction cost calculator gives instant results with no signup.
Rates based on 2024–25 Bangladesh construction market. All prices are editable. For reference only.
Building Construction Cost
Enter your plot size, floors & grade — get full itemised cost
Enter the built-up area per floor
Ground floor = 1 floor
Rates are based on 2024–25 Bangladesh construction market averages (BDT per sqft). Actual costs vary by location, site condition, and contractor. All prices are manually adjustable — this is an estimate only.
How to Use
- 1Select your construction grade — Economy, Standard, or Premium.
- 2Choose your preferred currency for the cost display.
- 3Select the area unit (Sq Ft or Sq M) that matches your drawings.
- 4Enter the built-up floor area per level in your chosen unit.
- 5Enter the number of floors (ground floor = 1).
- 6Review the full itemised cost breakdown and grand total.
Example Calculation
- Grade: Standard
- Floor area: 1,200 sqft per level
- Number of floors: 4
- Total built-up area: 4,800 sqft
Estimated Total: approx. ৳ 1.78 Crore (Standard grade, 4,800 sqft)
What Is Included
The breakdown covers 12 major cost heads: foundation and earthwork, RCC structure, brickwork, plastering, flooring, doors and windows, electrical, plumbing, painting, roof waterproofing, labour and supervision, and a 5% overhead contingency. Land cost, design fees, and furnishing are not included.
Tips for Cost-Effective Construction
- 1Get at least 3 contractor quotes — prices can vary 20–30% for the same specification
- 2Fix your foundation and structural design before starting — changes are very costly later
- 3Use standard brick sizes (9.5 × 4.5 × 2.75 inches) to minimise wastage in BD
- 4Budget 10–15% contingency on top of the estimate for unexpected costs
- 5Invest in waterproofing — it costs little upfront but prevents expensive repairs later
- 6Grade 43 or Grade 53 cement is recommended for structural RCC work in Bangladesh
- 7MS rod (deformed bar) rates fluctuate — fix the price with your supplier before starting
- 8Consider hiring a site engineer or architect for supervision — saves cost in the long run
Frequently Asked Questions
How accurate is this construction cost calculator?
The calculator uses 2024–25 Bangladesh market rates per square foot for all major construction items. It gives a reliable estimate for budgeting purposes. Actual costs can vary ±15–20% based on location, contractor, soil condition, and material price fluctuations. Always get 2–3 contractor quotes before finalising.
What is included in the 'Grand Total'?
The grand total includes foundation and earthwork, RCC structure (columns, beams, slabs), brickwork and masonry, internal and external plastering, flooring and tiles, doors and windows, electrical wiring and fittings, plumbing and sanitary work, painting and wall finish, roof waterproofing, labour and supervision, plus a 5% overhead and contingency buffer.
What is the difference between Economy, Standard and Premium grades?
Economy grade uses basic materials and a simple finish — suitable for budget construction. Standard grade uses mid-range materials with a good finish — the most common choice for residential buildings. Premium grade uses high-end imported or premium-brand materials with a superior finish, suitable for luxury homes and commercial spaces.
What does 'floor area per level' mean?
It means the built-up area (covered area) on each floor. For example, if your plot is 1,200 sqft and you build a 3-storey building on it, the built-up area per floor is approximately 1,200 sqft, giving a total of 3,600 sqft. Enter the actual built-up area — not the plot size.
Does this calculator work for countries outside Bangladesh?
Yes. The base rates are in BDT but you can select any currency for display. For non-Bangladesh construction, update the per-sqft rates mentally or use it as a structural reference. The breakdown percentages and item categories are universally applicable.
Is labour cost included?
Yes. Labour and supervision cost is included as a separate line item in the breakdown. It covers daily labour, mason work, and site supervision fees typical for the Bangladesh construction market.
What is not included in this estimate?
The estimate does not include land purchase cost, legal fees, architect or engineer design fees, lift or elevator, generator, boundary wall, parking, landscaping, furniture, or interior decoration beyond wall painting. Add 10–15% on top for a fully furnished and fitted estimate.
What is the average construction cost per sqft in Bangladesh in 2024–25?
For Economy grade: approximately BDT 2,300–2,700 per sqft. For Standard grade: approximately BDT 3,500–4,200 per sqft. For Premium grade: approximately BDT 6,000–8,000 per sqft. These rates are for Dhaka and other urban areas; rural rates may be 15–25% lower.