How to convert Rect to Polygon?

Question

HTML

There is an SVG floor map.
Hints bind to coordinates

<polygon points="2534.73 990.07 2534.73 1119.98 2461.83 1119.98 2461.83 1147.88 2397.8 1147.88 2397.8 990.07 2534.73 990.07" style="fill: #314077;fill-rule: evenodd"/>

But some apartments look like this

<rect x="2397.8" y="880.86" width="108.43" height="103.36" style="fill: #314077"/>
  <rect x="2397.8" y="771.36" width="108.43" height="103.65" style="fill: #314077"/>

Almost the entire residential complex has already been tied to the coordinates, except for these apartments.
Tell me kind people how to convert Rect to Polygon in this SVG?