Is your area coming under CMDA or DTCP jurisdiction? There is no limit mentioned on number of floors, but building height cannot exceed 60M (roughly S+17 or G+16). However other factors like plot coverage, setback requirements, etc.. may not permit construction upto 60 m height. For eg, for every 6m above 30m you construct, you must provide an additional setback of 1m on all sides. That is why most builders restrict to 9-13 storeys height.
Unfortunately your plot size doesn't permit anything above G+3 or S+4.
For example I own a house in x area which was approved by DTCP in 1975, now the area has come under CMDA jurisdiction, so I need to get approval from Panchayat/municipality for building permit and CMDA for planning permit. CMDA has delegated to local body to issue planning permit for certain types of constructions like S+2, but if you intend to put up S+4, you need to approach CMDA directly for approval.
If you plot is in LPA area like Siruseri or Navalur, then it is beyond CMDA jurisdiction. The respective panchayat or LPA (Mamallapuram LPA for Siruseri) must issue planning permit. If DTCP has not delegated pp issuance to panchayat or LPA for type of building you plan to construct then you must approach DTCP directly to get approval.
If you can tell location of your property, can give better advice.
Hi ravi as per my understanding before split the land we need to get building approval.after getting building approval we can split the land into two part is my understanding is correct? for getting CMDA building approval how much day will take?