Came across an interesting post and thought to share with the rest who may be interested in B-17 - MPCHS.
Source: Understanding Multi Gardens B17’s confusing Geography [Let’s clear some misconception]
One of the most interesting maps for me. The question is, while living in B-17 are you a resident of ISB or RWP?
https://shoaibtalib.files.wordpress.com/2015/02/multigardens-map-from-wikimapia-copy.jpg
https://shoaibtalib.files.wordpress.com/2015/02/cda-notice-d18-e18-f18.jpg
https://shoaibtalib.files.wordpress.com/2015/02/capitaldevvisavis.jpg
"Multi-Garden society was launched in two phases i.e. Phase 1 and phase 2. Phase-1 comprises of Block A, B and C. Phase-2 (also known as Multi-Garden extension or Multi-Gardens II) comprises of Block D,E and F. Although people generally believe that both phases are located in Islamabad sector B17. But CDA, through a public announcement (given below), clearly stated that multi-gardens II is not located within CDA boundaries. Hence, it is outside Islamabad limits."
"With respect to official Islamabad map: Block A exists in sector “A17”, Block B exists in “B17”. Block C exists partly in “B17” and partly in “B18”. Block D exists in “B18”. Block E and Block F exist in A19. As we all know, Islamabad limit terminates at “17” series sectors i.e. A17,B17,C17,D17,E17,F17,G18,G17 and I17, Block A (A17), Block B (B17) and Block C (B17/18) comes under the fold of CDA and rest of the blocks i.e. D, E and F are present in Rawalpindi. I have tried to show an approximate location of every block with respect to Islamabad map taken from Wikimedia."