Must not be expensive not more than 50 lacks
Near airport
2 to 3 year investment
Gulberg Islamabad might be a good option.
Muhid, which airport, new or old?
New airport has zone 2 in the neighbourhood. I recommend G-15/F-15 or F-17 (MPCHS), both are populated.
Old airport, Bahria ph.1-6 or DHA2.