How much does a man cave cost?

We have a long garden and I'm thinking of building a completely separate man cave at the bottom of it. I know prices can vary depending on spec, but I'm looking for rough costs for different spec hideouts? I'm going to finance this so rough is fine just so I can assess if it's feasible. I'm located in Manchester if it makes a big difference. Also, if I got this booked in Jan do you think it'd be possible to have it done by May/June?

Asked by Greg on 9th Dec 2025
Expert Trade Answers
"Hi Greg

Typically the building will be around £1.5k per square metre . So a 4x3m would be around £18k
There is normally a 7-10 day build time and worth booking in advance , although we dont work in Manchester there are many Garden room Installers locally.
Worth working out what tech you might want as power and data are always the issues there."
Answered on 9th Dec 2025 - Member since Apr 2018 - report
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