Dispute for the Stilt Parking

Sir , our is a court decree, in a compromise settlement agreement it has been mentioned that i will be given only one car parking rights in a property to be demolished and to be reconstructed.Whereby we are the owner of two floors .We were pressurized and threatened a lot to accept to sign the settlement agreement and to protect our life we signed it, and the compromise settlement agreement is a court decree now. we sign the stilt car parking agreement in Jan.2011 but this stilt Parking became mandatory law after 3 months in 2011, building plan has not been signed yet because we are asking builder we will sign the building plan only , if we are given at least two car parking per floor i.e four car parking , he has gone to the court an has filed case for decree execution order and keep telling us that we will loose very badly,as court won't accept this argument as this is a compromise court settlement agreement decree. Please let me know , being a court decree and this stilt car parking law came after the settement agreement has been signed, will we still be eligible or can ask the court to give two stilt car parking as it is a necessity for us or court won't listen to our request . Builder says its a decree and you have accepted yourself for one car parking space, so court won't even listen to you and will just give the order for decree execution. Any remedy available or not.