
How to finance a house extension or renovation in London (2026 guide)
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Cost planning
Use our calculators to explore the scope and choices behind your budget. Each tool shows its own assumptions and allowances. A property review and itemised quotation turn a planning range into an agreed construction price.

5-10 minutes
Explore an early planning estimate for your kitchen renovation project. Our calculator considers your kitchen size, materials, and specific requirements.
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3-5 minutes
Calculate the cost of your bathroom renovation with our comprehensive tool. Includes tiling, fixtures, and underfloor heating options.
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8-12 minutes
Plan your house extension with our detailed cost calculator. Covers single and double-storey extensions with various finishes.
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10-15 minutes
Comprehensive calculator for general home renovation projects. Perfect for whole house refurbishments and building refurbishment projects.
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3-5 minutes
Estimate the BTU output for heating your room with gas or electric radiators. Explore heating requirements based on room size and insulation.
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Useful to know