None of these can be allowed in Penang.

but so many penangite houses broke the law.

1. First call those city council draughtman / architect and pretend to ask what's allow and what's not. but must be specific i.e
a. extend the front porch as a garage
b. extend corner lot house until the fence
c. build up partition wall up to ceiling at neighbour

Then let see what those idiot told you. Then go to any taman, see whether they got follow. If none ask the owner why they didnt follow, then if they answered already got approval, then take the approval and throw back to the architect face and document all these in a video form and upload to youtube.