Hi Shannon! Have you heard of The childrens campus? They have a large bungalow house with a huge space. Also they go around for their activities! I send the link below for you, might want to call and go have a look.
http://thechildrenscampus.com.sg
https://sg.theasianparent.com/the_childrens_campus_review/
Hope this helps!
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Bad Mum, Kudos to that.