Houses in Corbally

If I were you, I would go to osi.ie, click on the map (where it says search for an address), and either zoom in or type the name of the estate(s) you’re interested in. Good clear up-to-date maps, you’ll be able to estimate the number of houses there are by counting them on-screen. This is assuming tis houses, and not apartment blocks, of course. For apartment blocks, you could check the planning section of the council website (for accuracy you’d have to check conditions attached to grants of permission, and decisions from An Bord Pleanala as well, but I wouldn’t bother with that level of detail myself).