The Supreme Court judgment has been discussed under several posts in this Forum and I have given my humble opinion there also. The learned advocates here have spoken about generalities, not necessarily specific to this case.
A court judgment cannot be interpreted either from the title given in newspapers or even from the title given above the judgment. No judgment can be universal. It can be applied only to similar cases and the similarity itself will have to established. It will also depend on the laws of the State. For instance the Supreme Court judgment was with respect to a case in Maharashtra. In Mumbai there are what are called Development Control Rules to be complied with. If Karnataka does not have such Rules a decision in a Karnataka case can be different.
The case which went on appeal by a builder before the Supreme Court was like this.
A builder constructed a building and sold individual flats to individuals as is usually done. The building had stilted as well as open areas. In each deed of sale he had introduced a declaration by the purchaser that the car parking slots are not included in the sale and that the builder could sell it to anyone at his discretion.
In due course all flats were sold and a society also was formed and registered. After that the builder tried to sell individual parking slots to which the Society objected. The Society said that all common areas under the stilt and in the open areas belonged to the Society and that it was the prerogative of the Society to allot them to individual members as per the Model Bye-laws in Maharashtra.
For me it is obvious that the manner in which the builder proceeded was wrong. When the builder lost his case in Bombay High Court and went on appeal to the Supreme Court, many other Societies with similar cases were allowed to join as co-respondents by the Supreme Court. However the Supreme Court judgment does not narrate the other cases and hence the public cannot know what exactly were the other cases.
If a builder constructs a building clearly marks in the plans the flats as well as the parking slots, has additional parking slots after satisfying the requirement as per the DCR and gets approval of competent authority I see no reason why he cannot sell the parking slots along with the flats. One purchases accommodation because one wants a residence from which one cannot be evicted. If one owns a car and if one wants a parking slot for his car from which he cannot be evicted he must able to go in search of a Society where he can buy the parking slot also.
There are many Tuglakian laws in this country. An example is the Model Bye-laws in Maharashtra. Under the bye-laws Societies will allot parking slots to its members on a rental basis. If the number of cars exceed the number of available parking slots, members to whom parking slots have to be allotted will be decided by taking lots and the allotment will be for one year at a time. In Mumbai many buildings are located in such areas where there will be no parking space outside the compound of the building. Now suppose in my Society when I joined if all parking slots were occupied I will have to wait at least for one year to try my luck to purchase a car. If I am lucky I will get a slot in next year's lottery. But if I am not lucky after another one year of parking I will have to sell my car.
Lastly Bye-law No. 78(b) of the Model Bye-laws 2013 of Maharashta reads as follows:
The allotment of the Parking Space shall be made by the Committee on the basis of "First come First Served" for unsold and available parking spaces.
Thus by implication the bye-laws recognize that parking slots could be sold.
The Supreme Court judgment is specific and does not place a blanket ban on sale or owning of parking slots.