Thought I'll share this with everyone. We wrote to USGBC for clarification on whether the LEED boundary should extend to the limit of work on an urban site (where we are requested by the City to do some work on curbs, sidewalks and streetlights). The MPR language was ambiguous.

USGBC replied that we should use the property line and further, that "Version 2 of the MPR Supplemental Guidance, forthcoming, will include guidance addressing this issue".