Construction Cost Calculator

Estimate the total cost of constructing a house based on built-up area, construction rate, materials, finishes, professional fees and contingency.

Construction Project Inputs

1. Base Construction & Area

square_foot Total Built-up Area

sq.ft

Total built-up floor area across all floors planned.

payments Base Rate per Sq. Ft.

₹

Contractor base rate per sq. ft. for basic civil construction.

construction Specification Quality

alt_route Component Cost Treatment

Prevent double-counting if contractor rate already includes electrical, plumbing & finishing.

2. Separate Construction Components

foundation Civil / Structural Work

₹

electric_bolt Electrical Wiring & Fittings

₹

plumbing Plumbing & Sanitary Piping

₹

texture Flooring, Tiling & Painting

₹

door_front Doors, Frames & Windows

₹

countertops Kitchen Counter & Bath Fixtures

₹

engineering Compound Wall & External Works

₹

3. Professional Fees & Contingency

architecture Architect & Structural Design Fees

₹

gavel Plan Sanction & Permit Fees

₹

shield Contingency Reserve Rate

25%

Buffer for material price fluctuations & scope changes (Default 10%).

4. Optional Land & Interior Scope

landscape Plot / Land Purchase Cost

₹

Optional. Calculated separately under Total Project Cost.

chair Interiors & Furnishing Budget

₹

Optional. Calculated separately under Total Move-in Cost.

Total Construction Cost

+13.3% OVER BASE

₹ 56.65 Lakh

Effective Rate: ₹ 2,833 / sq.ft (vs Base ₹ 2,500 / sq.ft). Contingency Reserve: ₹ 5.15 Lakh (10%).

NOTE:

Component costs are marked as 'Already Included' in contractor base rate.

Total Construction Cost

₹ 56.65 Lakh

+13.3% Rate Increase

Effective Cost / Sq. Ft.

₹ 2,833 / sq.ft

Base: ₹ 2,500 / sq.ft

Base Construction Cost

₹ 50.00 Lakh

2,000 sq.ft

Separate Components

₹ 0

Treatment: Add Separately

Professional & Permits

₹ 1.50 Lakh

Architect: ₹ 1.00L

Contingency Reserve

₹ 5.15 Lakh

Rate: 10.0%

Itemized Construction Cost Waterfall

1. Base Construction (2,000 sq.ft @ ₹2,500) ₹ 50,00,000

2. Civil / Structural Work +₹ 0

3. Electrical Wiring & Fittings +₹ 0

4. Plumbing & Sanitary Piping +₹ 0

5. Flooring, Tiling & Painting +₹ 0

6. Doors, Frames & Windows +₹ 0

7. Kitchen & Bathroom Work +₹ 0

8. Compound Wall & External Works +₹ 0

9. Architect & Sanction Permit Fees +₹ 1,50,000

10. Construction Subtotal ₹ 51,50,000

11. Contingency Reserve Buffer (10%) +₹ 5,15,000

                        Total Construction Cost
                        ₹ 56,65,000
                    

Construction Analysis & Guidance

ℹ️ Effective Rate Impact: Professional fees and contingency add +₹ 333 / sq.ft (+13.3%) over the base contractor rate of ₹ 2,500 / sq.ft.
ℹ️ Scope Check: Component costs are set to 'Add Separately'. Confirm contractor scope excludes electrical & finishing before finalizing budget.

tips_and_updates

Verify Contractor Scope Before Agreement: A contractor quoting ₹2,200/sq.ft may exclude doors, windows, and painting, while a ₹2,800/sq.ft quote includes teak wood doors and premium tile finishes. Always compare all-in effective construction costs per sq. ft.

This calculator provides an estimate based on the inputs and assumptions entered. Actual construction costs can vary significantly based on location, site conditions, design, structural requirements, materials, specifications, labour rates, contractor scope and market conditions. Always obtain a detailed project estimate and verify what is included in the quoted construction rate. This calculator is for informational purposes and does not constitute a construction, financial or professional cost estimate.

What Does It Cost to Build a House?

The contractor's quoted rate per sq. ft. is only the starting point. Professional fees, structural modifications, finishing choices, and a mandatory contingency buffer determine your true all-in construction budget.

Cost 1

Base Civil Construction

Core foundation, RCC columns, beams, brickwork, and plastering calculated per sq. ft.

Cost 2

Finishing & Fixtures

Flooring tiles, electrical wiring, sanitaryware, doors, windows, painting, and kitchen counters.

Cost 3

Professional & Permit Fees

Architect fees, structural engineer design charges, soil testing, and municipal plan sanction fees.

Cost 4

Contingency Reserve

A 10% reserve buffer to absorb steel/cement price inflation, design modifications, and unexpected site conditions.

Before Starting Construction Checklist

✓ Obtain a detailed itemized Schedule of Quantities (BOQ) from your architect before signing contractor contracts.
✓ Verify whether compound wall, borewell, underground sump, and electrical meter connections are included in contractor scope.
✓ Confirm steel brand (TMT 550D), cement grade (53 Grade OPC/PPC), and sand specification (M-sand vs P-sand).
✓ Ensure plan sanction approval from BBMP / BDA / local municipal authority is obtained prior to excavation.
✓ Maintain a 10% cash contingency reserve strictly earmarked for unbudgeted expenses.

Frequently Asked Questions

What is the difference between Base Rate and Effective Construction Cost per sq. ft.?

Base Rate is the raw contractor quote per sq. ft. Effective Construction Cost per sq. ft. includes all additional component upgrades, architect fees, plan approval fees, and contingency reserves divided by total built-up area.

Why is a contingency reserve important in home construction?

A contingency reserve (typically 10%) absorbs material price inflation, structural modifications, and unforeseen site conditions without stalling construction.

How do I prevent double-counting component costs in the calculator?

Select 'Yes — Already Included' if your contractor's quote includes civil, electrical, plumbing, and finishing work.