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House Construction Cost Calculator for Kathmandu, Lalitpur & Bhaktapur

Estimate your home building cost with 2025/2026 Valley market rates & NBC 105:2020 seismic norms — select your plot, storeys, finishing tier, and infrastructural upgrades. Free, instant, no signup.

Your Home Plan

Land Area (Plot)

ropani

aana

paisa

dam

Plot size: 1,369 Sq Ft

Built-up Area per Floor

Sq Ft

Covered area of one floor — usually 40–60% of your plot

Number of Floors · 2.5 floors

GG+1G+2G+3G+4G+5

Construction Quality

Project Location

Design Complexity+10%

Simple & rectangularComplex & custom

Add-ons & Extras

Water Tank (1,000 L+)

Underground + overhead

≈ Rs. 120,000

Solar Power System

1 kW — panels, inverter & batteries

≈ Rs. 350,000

Compound Wall & Gate

Estimated from plot perimeter

≈ Rs. 444,000

Septic Tank & Drainage

Where no sewer line exists

≈ Rs. 150,000

Parking Shade / Porch

1 car, steel + polycarbonate

≈ Rs. 250,000

Garden & Landscaping

Grass, plants & walking path

≈ Rs. 120,000

Estimated Cost— · Kathmandu Valley

Rs. 89,68,125

≈ 89.68 Lakh

Typical range: Rs. 82,50,675 – Rs. 1,00,44,300

Rs. 4,783

Effective Rate

1,875 sq ft

Total Built-up

15–18 months

Construction Time

Cost Breakdown

Share of base construction cost (excludes add-ons)

Foundation12%Rs. 10,61,775

Structure (RCC)28%Rs. 24,77,475

Walls & Plaster14%Rs. 12,38,738

Roofing8%Rs. 7,07,850

Flooring & Tiles9%Rs. 7,96,331

Doors & Windows9%Rs. 7,96,331

Plumbing & Sanitary7%Rs. 6,19,369

Electrical6%Rs. 5,30,888

Painting4%Rs. 3,53,925

Finishing & Misc.3%Rs. 2,65,444

Selected Add-ons

Water Tank (1,000 L+)Rs. 1,20,000

Add-ons totalRs. 1,20,000

Payment Schedule

Common contractor milestone plan

15%Foundation completedRs. 13,45,219

20%Structure up to lintel levelRs. 17,93,625

20%All roof castings doneRs. 17,93,625

15%Brickwork & plasteringRs. 13,45,219

10%Plumbing & wiring rough-inRs. 8,96,813

10%Flooring, doors & windowsRs. 8,96,813

7%Painting & final finishingRs. 6,27,769

3%Handover & final paymentRs. 2,69,044

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This is a preliminary estimate based on average 2026 market rates. Actual cost varies with design, soil condition, material brands, labour availability and market fluctuation. Please get a detailed quotation from a licensed engineer or contractor before starting construction.