So what can you do if you created the wrong type of Page for your business? Or you inadvertently ended up with both a Local page and a non-Local page?
While it is not possible to merge Google+ Pages, you can now convert a Google+ brand Page into a Google+ Local Page.
According to the official announcement, this option is only open to Google+ brand Pages that represent a single customer-facing location.
Connect a page to Google Maps: I’ve already created a page for my business, but it’s not connected to Google Maps
+Mike Blumenthal has also written an excellent overview of what changes and what doesn't change during this process.
What happens to your YouTube channel?
Your YouTube channel should remain connected to its Google+ Page. If you would like your YouTube channel connected to a different Google+ Page, you can contact YouTube support and ask them to move your channel from one Page to another.
Use this contact form for assistance with Google+ on YouTube : https://support.google.com/youtube/contact/ytgplus
How can I delete an unwanted Google+ Page?
To delete a Google+ brand Page, you will first need to either disconnect or delete any connected YouTube channel.
Once your Google+ Page is disconnected from YouTube, you can open your Google+ Page's settings and choose the option to delete your Page. Note that this cannot be undone!
You can get full instructions in the Google+ help center: Delete your Google+ Page
How do I get help with my Google+ Local Page?
You can get direct assistance with your business's local Google listing by going to the Business help center and clicking "Contact Us" in the upper right corner.
Posted by Peggy KIf direct support is not available to you, you can post a question in the Google and Your Business help forum.