Open floor plans, which are all the management rage these days, are very stupid. I understand all the arguments for them. I've seen all the stats about them. They're still very stupid. Particularly for people who actually have to focus intently or concentrate on complex things as part of their jobs.
Much better to give people offices, even tiny ones, with doors. Then have larger common spaces where people can meet up and collaborate. If there's room, the common spaces should vary in size and should also have doors.
If your people have better productivity in an open floor plan (and I'm skeptical of your metrics), then you've hired the wrong people.
The exception to the stupidity of it, I suppose, is if the sole purpose of the business is to be profitable at the expense of all else. If you don't mind turnover, a total lack of employee loyalty, treating people like cattle, etc., and only care about maximizing profitability, then an open floor plan fits that business model.