Unless you want to pay for all the legal documents and service fees to get your new plans approved, no, especially with SPA enforced on both you and developer.

Construction must follow the terms and layout as given in SPA and as per approved architect plan submitted to authorities, under law.

In addition these changes will not only disrupt their construction schedule (usually quite tight) which will cost them, there's also safety risks involved in high rise (affects load bearing walls etc.)

Developer will not pay for and take those risks unless customisation is part of the package to begin with, and even then they will not deviate from SPA.

This post has been edited by DragonReine: Dec 23 2021, 12:54 PM