The description of location is hard to follow - "north of south road" rules out all of Highett.
Unfortunately you will struggle to find a house on a full block in Brighton East, Caulfield (including North, South) for $900k at the moment. I am in Caulfield South (avg street) and bulldoze houses on a 650sqm block are selling over $1m in the last few months. But if you find a smaller block things will be different - depends what you are looking for. Or if you are looking at a villa things are different again.
Ormond is not bad value and often around your price point (just) for a full sized block. Next would be to look at Mckinnon / Bentleigh.
Things are hot so you may find you need to push more east (such as Bentleigh East, Carnegie) to find something you like in your price range. Prices drop quite a bit once you get past East Boundary Road / Murrumbeena Rd.