Arada’s overview page names six districts in the original Masaar — Sendian, Kaya, Robinia, Azalea, Sequoia and Saro — while describing seven gated communities. One is therefore unaccounted for on the page itself.
Separately, Arada’s own material calls Saro both a Masaar district and “the seventh phase” of the masterplan, which are two different kinds of claim about the same name. We have not been able to resolve that from published sources, so we report it rather than picking one.
Townhouses and villas coexist inside districts rather than each district being one or the other, and Arada does not publish which units are where. Ask for the district, the phase and the unit type together, in writing, because the three are not interchangeable here.