Checkout Boulevard 28. They have studio units 400+ sqf for rm280k+. Address is Cheras, but it is on the border of cheras and kl central. it is only 5-10 mins drive to Jln Tun Razak.
Completion is end 2019, so i think it is good for investment as u r locking in today's price for 4 years in future property. Also less to pay monthly as only need to serve interest for progressive payments.
This project is JV between mapletree (part of Temasek) and some other, so i think no need worry about project getting abandoned.
I would buy for investment if i have the xtra cash, which i dont :(