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Loft Conversion ROI Estimator
Estimates return on a loft conversion using cost, expected uplift percentage, and disruption/time.
Instant result
Plain-English why
Copyable takeaway
What this means
Total cost: £78,000.00. Added value: £75,000.00. Net gain: -£3,000.00. Break-even uplift needed: 15.6%.
Formula used
Total cost = build + fees. Added value = property_value * uplift/100. Net gain = added value - total cost. ROI = net_gain / total_cost * 100.
Worked example
Property £500k, build £70k, fees £8k, uplift 15%. Added value £75k, cost £78k, net -£3k, ROI -3.8%.
Common questions
Can I use this internationally?
Yes. Currency selectors are display-only unless a tool explicitly says otherwise; no currency conversion is performed.
How exact is the result?
It follows the published Technofatty formula for this tool, but real life can add fees, rules, timing quirks, and context.
Plain-English summary
Loft conversion ROI: -3.8%, net -£3,000.00.
This section translates the result into a short, direct takeaway rather than leaving the page at a bare number.
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