If there are two separate townhouses that carry two deeds that show the property line being the wall that separates the two townhouses.
There are two service laterals that supply two meters that are a couple feet apart.
How many grounding electrodes (rods) are required for these two meters? Would it be permissible to cross property lines with the grounding electrode conductor for the installation of just two rods or would each property require two rods each?
I would think if they are separate townhouses as you described then each would be considered a separate structure. Separate structures would need their own grounding electrodes.
Good question---Enlighten us please....