I see that Google have updated their maps of Kintyre. You can now view Southend and the surrounding area including Sanda, Dunaverty Golf course and all the farms. Wonderful.
I reckon it's from last year. It's summer because the caravans are out at Machribeg caravan site at Southend and my next door neighbours was being renewed hence ther's space in between.
Definitely between April and October, there are caravans on the site at Muasdale. The one for where we live is at least 15 months old, because where there are new houses, on the Google picture the foundations have just been done.