"Take Control of Your Project Budget with the BuildSmart UK Calculator"

"Plan smarter, stay on budget, and make informed decisions with our easy-to-use calculator.

Tailored Extension Planning

The BuildSmart Budget Calculator is designed specifically for your home extension project, providing a customized experience from start to finish. Here's how it works:

Choose Your Extension Type: Select from various extension types—whether it's single storey, double storey or Loft Conversion —to ensure the calculator aligns with your project’s specific requirements.
Specify Your Location: Enter the location of your project to factor in local building codes, regulations, and area-specific costs, ensuring your plan is both realistic and compliant.
Define the Size: Input the dimensions (length x width) of your proposed extension. This helps generate a precise estimate tailored to the scope of your build.
Customize Fees: Adjust and personalize the fee structure—such as planning fees, permit costs, and construction estimates—to get a clear picture of your financial commitments.
Plan and Get Ready to Build: With your inputs, the calculator provides a detailed budget and planning overview, setting you on the right path to confidently move forward with your construction project.

Insights You’ll Gain from Our Free Calculator

Understand the Cost-to-Size Ratio – Get a clear breakdown of how different extension types compare in terms of size and cost..
Transparent Fee Structure – Know exactly what fees are involved to take your project from concept to completion
Plan Within Your Budget – Determine the type and size of extension you can afford before committing to design work
Avoid Unexpected Costs – Ensure there are no hidden surprises when builders start quoting for your project.

Trusted by Homeowners Across the UK

"Game-Changer for Planning My Extension!"

"The free calculator gave me a clear idea of costs before I even spoke to an architect. It helped me set a realistic budget and avoid unexpected surprises!"

James R

"Simple, Fast & Incredibly Useful"

"I had no idea where to start with my home extension costs, but this tool made it so easy. Within minutes, I had a breakdown of potential costs and knew exactly what I could afford."

Sarah L

"Took the Guesswork Out of Budgeting"

"I was worried about hidden fees and unexpected costs, but this calculator laid everything out clearly. It gave me the confidence to move forward with my project."

Mark D

Download Your Free Budget Calculator & Plan Your Extension with Confidence!

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