Advice on buying a flat

Thoughts on buying a flat for 1.7Cr + registration and interior. Delivery in another 3 years. Reputed builder. But really confused as flat is often considered as a depreciating asset. Location near Thrikakara. Primary reason for not choosing independent house coz of safety concerns, good premium villas are way more costly. The 1.7 Cr itself will be a strech,