How much value does a dormer loft conversion add?

I’m weighing up whether a dormer loft conversion is worth the investment. Roughly how much value does it tend to add. We live in the Midlands

Asked by Elly on 22nd Jan 2026
Expert Trade Answers
"Hi you. Most probably looking at 60k depends how big it is and if you have a bathroom in it etc thanks Lloyd"
Answered on 22nd Jan 2026 - Member since Dec 2025 - report
"Hi Ellie,
Depending on the area in which you live. And size, I.e one or two bedrooms and whether there is a bathroom as well. But generally by rule of thumb. One bedroom with a bathroom can add between £80,000 and £125,000 depending on scale.
Thank you"
Answered on 22nd Jan 2026 - Member since Apr 2024 - report
"It all depends on the are but typically a dorms loft conversion can add about 20-25% depending on the size"
Answered on 22nd Jan 2026 - Member since Feb 2024 - report
"Hello ,
It does add the value on ur property around 20%-30% depends on the size of the property . Ita just a extra bedroom ."
Answered on 22nd Jan 2026 - Member since Sep 2019 - report
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