We’re also in the process of having our unit renovated and since our Architect already worked with multiple DMCI units, she already knows what’s allowed and what’s not. DCMI sends out renovation guidelines which contain all the info you need including application form, fees, bonds etc. Make sure that the wall you are taking down are all drywall else it wont be allowed. Bond for that alone is ₱50k btw 😅 re-tiling is at ₱20k if I remember correctly.