Defence Housing Authority - Contact Us Address. Defence Housing Authority (DHA) Sector "Y" Commercial Area, Phase III Lahore, Pakistan. Postal Code / ZIP: 54810 ... List of postal codes in Pakistan This code is not meant for the main DHA post office's attached branch office. ... For larger cities (Karachi and Lahore), there are a number of GPOs; however the ... Pakistan Post Codes pakistan postal code, lahore postal codes, pakistan post code, ... Citys Code Citys Code Abbottabad … [Read more...]