IssueTracker

Why do you expect the suite/apartment to be shown?

Please read https://developers.google.com/maps/faq#geocoder_queryformat

It looks like suites/apartments are not taken into account for address formatting.

Support for subpremise elements (apt. / suite) is limited. Place Autocomplete is not intended to support these universally.

Geocoding API will find these places, and return subpremise elements in address_components:

9500 Bryn Mawr Avenue #650:
https://google-developers.appspot.com/maps/documentation/utils/geocoder/#q%3D9500%2520Bryn%2520Mawr%2520Avenue%2520%2523650%2520Redlands%26nfw%3D1

1403/648 Bourke Street:
https://google-developers.appspot.com/maps/documentation/utils/geocoder/#q%3D1403/648%2520Bourke%2520Street%26nfw%3D1

130 Bowdoin st., apt. 1010:
https://google-developers.appspot.com/maps/documentation/utils/geocoder/#q%3D130%2520Bowdoin%2520st.%252C%2520apt.%25201010%26nfw%3D1

Geocoding can be used as a fallback behind Autocomplete for these queries, the Geocoder Tool at https://google-developers.appspot.com/maps/documentation/utils/geocoder/ does this to some extend: if you hit Enter without picking a suggestion, your input is sent to the Geocoding service. This helps with 1st and 3rd examples above.

If you need to support suite/apt beyond that, there is a somewhat more complex fallback option:
- use the placeIdOnly option of Autocomplete class to capture the suggestion's description (e.g. "1403/648 Bourke Street Melbrourne, Victoria, Australia")
- match this description against a set of regular expressions to detect suite/apt in them, e.g. "\d+/\d+.*Australia" to detect 123/45 ... Australia)
- if there is a match, send the description to the Geocoding service, otherwise, request details for by Place ID
This can still be accomplished without coding your own Autocomplete widget.

Reopening as Feature Request, please star this issue if you are interested.

The resolution for the much greater problem in https://issuetracker.google.com/35823492 will likely make it more visible that Place Autocomplete does not support subpremise results. As explained in https://issuetracker.google.com/110910555#comment2 the current best approach for subpremise results is to use the Geocoding API.

+1 StackOverflow: https://stackoverflow.com/questions/51256628/google-autocomplete-api-possibly-has-a-new-bug

+1 for this particular address in New Zealand, '1/19 George St', it was showing subpremise, but not now!

+1 for us also.  A range (all?) of Australian addresses that were working now fail as it no longer shows subpremise.  

I don't suppose a timeframe could be offered for when this is likely to be resolved?

+1 A big issue for me as had been relying on the subpremise information  during address selection