1. Can an area of a stilt parking (on a property with four builder floors in South Delhi, India) be sold separately to any of the floor owners? Or is stilt parking considered as part of the common area and hence, is equally owned by all floor owners?
if this project is registered with RERA, then after coming into force of RERA, stilt car parking space can be sold by the builder but not open car park space. If you check the model form of RERA agreement, in that, aside from the sale consideration for the flat purchased by buyer, there is a separate para for consideration paid by buyer to builder for purchase of stilt car park space. The buyer can purchase more than 1 stilt car park space. However in my opinion, that does not mean that the builder can sell all the stilt car park spaces to a single buyer, when there is no open area for car parking. That can never be intention of the legislature, that is to deprive other buyers who did not purchase the stilt car parking, and who would then have to be on the mercy of a single purchaser who bought all the stilt car park spaces. However if in the sanctioned building plans, there are more car park spaces than the number of flats, then the builder can sell more than one car park space to a single buyer. However as beforestated he can in no circumstances sell any open car parking space because that comes under common areas which would belong to the society when formed.
2. If my registration papers (as well as map) do not mention construction (portable cabin) over my underground water tank and the registration papers of another owner, who purchased the floor after myself, mentions the same, then what legal rights do I have to request for the removal of the same? The other owner claims that (s)he has paid a certain amount to the builder to to purchase the respective area and hence, I cannot question the same.
for this you need to check whether the builder amended the building plans and got approval for the same. Apply to the Municipal Corporation to provide you with certified copy of sanctioned building plans. If the portable cabin is not shown on the plans then that means that it is an unauthorised construction against which you can complain to the Municipal Corporation to demolish the same
3. My property has multiple main gates, which allow vehicles to move in and out. That being said, can any owner claim the rights to the parking spot just outside the premises of the property by the virtue that the entrance allows only one parking spot, which has been assigned to him/her by the builder?
i need you to elaborate more on this point. In my opinion no member can claim exclusivity over the parking space which is outside the premises of the property because that space would either form part of public road which then becomes property of the local body or that space may be a part of the common areas as shown on the building plans and such common areas are to ultimately be conveyed to society of flat buyers which can then assign such spaces to its members either on rotation basis or otherwise with consent of all members.
4. What legal rights do I have collect unpaid property tax from my builder for the timeframe prior to myself taking ownership of my floor?
if the project is registered with RERA, then file a complaint with RERA authority since the builder is liable to clear all outgoings before he sold the premises to you