London · London · 2026 Prices

How much does it cost to build a house in London?

The average cost of a new build house in London ranges from £180,000 to £600,000, with most homeowners paying around £300,000. Prices include VAT.

New Build House cost summary — London

Budget

£180,000

Average

£300,000

Premium

£600,000

Typical timeframe: 6-12 months. Prices are estimates for London and may vary.

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What affects the cost of a new build house in London?

1

Plot size and location

2

Number of bedrooms

3

Build quality and specification

4

Foundation type (ground conditions)

5

Architectural design

6

Planning and building regs

Related costs in London

House Extension

£24,000 – £96,000

Kitchen Extension

£18,000 – £66,000

Garden Landscaping

£2,400 – £18,000

New Driveway

£2,400 – £14,400

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