Hi all sifu, need some advise, want to extend below, no wall hacking. I got quoted around rm11k but not sure if the price is too expensive? Im expecting half the price. One of the picture done halfway is not my house, just taking my neighbour house pic

<blockquote class="imgur-embed-pub" lang="en" data-id="a/0hO1iPh" data-context="false" ><a href="//imgur.com/a/0hO1iPh"></a></blockquote><script async src="//s.imgur.com/min/embed.js" charset="utf-8"></script>

thanks all for letting me know, first time renovating house

i also not sure legal or not, this other people house already do halfway, . Its cluster house.

Will find a few other to compare , still got alot other thing to do like ceiling, kitchen, paint etc etc