title: Add custom parking layer to Google Maps
body: <p>I'm trying to add a layer to Google Maps to show parking information in my area. I found a website which does exactly the same (though their data is limited), which can be found here: <a href="https://parramatta.spotparking.com.au/parking-finder#" rel="nofollow noreferrer">https://parramatta.spotparking.com.au/parking-finder#</a></p>
  
  <p>My question is: how can you add such information to Google Maps? I know you can draw polygons on the map, but this is much more advanced, and when I look at the network calls, that doesn't help much either. </p>
  
  <p>Any pointers in the right direction are appreciated!</p>