Property Types in Mauritius

I often see "villa type F5" or "F4" posted on the property section but do not know what this means.  Can someone please explain the relevance of this?

Thanks

Hello,

Here you go:
https://englishspeakingrealestateagents … estate-ad/

Thank you for this - I didn't realise how simple it is!

Yep

Some  real-estate  agents don't realize that they are either in a foreign country or that their target audience may not be French  ;)