Would you like to place a bet on that!I have a screenshot of it.As I've said,very low comp.e.g no real competition.Point is your statement is incorrect.Try using the same url in some low comp places listings,make up a business name or 3 but use the same site.Work the site with good seo,you'll see what I mean,test stuff,it's what I do.
You're free to believe as you wish,I know,that's the difference.It's low comp,certainly doubt it would be achievable in any semi competitive niche because there will be other people doing seo,there isn't in this niche.There are only 55k competing pages,it's no big deal,it's just possible.
I'd like to see the screenshot of this, or just mention what the keyword phrase is; I have yet to see the exact *same URL* in the same blended SERP - I'm not saying this isn't possible, but I'd like to personally examine it further.
In my experience once you have your URL set in Google+ Business Places Page (whatever you want to call it now), that exact URL will not show up twice in that SERP. So if you have somedomain(dot)com in your places page, somedomain(dot)com will not show again in the same blended SERP. Though if you have somedomain(dot)com on your places page, somedomain(dot)com/service-or-service-location-or-keyword-phrase-etc can show up in the organic section (or vice versa), along side your local listing G+ Page in the local 7 pack on the same blended SERP - As this was mentioned in the prior post, since the two are not the *exact* same URL, even though they're both from the same domain.
Now an exception that I have seen is when somedomain(dot)com is on your places page, your website is set rel=canonical to the www(dot)somedomain(dot)com, and you might be acquiring links or linking consistently to www(dot)somedomain(dot)com (or vice versa). As we *should* know somedomain(dot)com and www(dot)somedomain(dot)com are two different URLs, thus having it possible to have the exact same page show up in the organic and local listing on the same blended SERP. - I have verified this; Google "beauty supply San Diego"
I do suspect this is just a temporary flaw, as you do not see www and non-www websites ranking side-by-side organically in the same SERP. Though this might have to do with the canonicalization or duplicate content filter...
That's my little golden nugget I'm sharing today. This might help the other members as I have read issues with their organic listing disappearing when they were added to the local 7 pack, dropping their ranking a couple places... To them, I suspect that you've done your link building for either www or non-www, so just claim and change your G+ local listing website field to the other. Better yet, Google the website and see which version of your URL is being indexed. I guess you could also optimize a page within your site for that keyword you were dropped from, but I think the other method may be quicker, since you were already ranking well organically.
Also NOTE: when you are looking at any G+ places page, Google will always drop the 'www' on the *display* URL. You can hover over it to see the actual destination URL. You have to actually claim the business and edit your basic information to add or drop the 'www' in the website field.