A Quick Way to Create Wider Walkway for LEGO Modular Buildings

How I expand pedestrian walkway of LEGO Modular Building Townhouse from Pet Shop 10218, without altering the base plate size. Compare Before and After side by side, as well as placing it with other modular buildings.
0:04 Introduction
0:57 Placing Minifigures
1:30 Adding Lamppost
3:59 Matching up with other Modular buildings
4:28 Before and After comparison
4:43 Minifigure details
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