Hi. I am in the process of buying a house in KL. but before signing the S&P, I found out the house's back was extended(ground floor and 1st floor) without approval from DBKL.
I want to know:
1-If the local authority found out after I buy the house, do I have to knock down the extended part and rebuild the house back to the original layout?
2- can I just pay the penalty rather than knocking down the house? If so, roughly how much?
3- can I negotiate with the seller about the price again?
4- can I apply for the permit after I buy the house? What is the chance of getting the approval? Will DBKL reject my application and then I have to knock down?
5- how to apply for the permit after the extension was made more about 10 years ago?

My case is also similar. Bought an extended house without approval from MPSJ.
My questions are
1. Will they have penalty on the seller since he is the one who extended the house?
2. Roughly how much for this kind of post-extended application? Is it the same as pre-extended application (about RM3k)
Thanks 

I wonder how one could purchase the modified house when bank would have sent evaluator to check the premise ?

My last check with Kota Kemuning authority is 'yes'.
Try to snap a few photo and bring to the authority, they will let you know whether will or will not be summon. Cause some kind of so call 'extension' no need permit.

That is why i put 'so call extension'
The unit that i check, they have built a roof with 2 column at the back yard without any wall. They also built a concrete counter top underneath the roof.
According to the council, this shall no need extension. The column is reinforced concrete, the roof is monier roof tile with timber trusses.

I've been looking for answers similar to this. Difference being, property I want to buy falls under MPKj jurisdiction. I heard cases are handled differently for different local authorities. Anybody experienced this issue with MPKj? I only have just over a week until the SNP needs to be signed but I want to clear this matter up first.