Saima green valley or falak naz dreams

I want to ask that:
- is it safe to to invest in saima green valley or falak naz dreams (noth located in malir near memon goth).
- management there is saying that they are giving possession but i found only a few houses built on my last visit. How can we verify their claim
- who will approve the map in case we are constructing the house there?

Experts please guide