In a tight-supply market, sellers reviewing offers tend to favour a buyer without a sale condition, so if your Nutana home is not yet sold, a firm purchase offer on the next property is harder to get accepted. Selling first, then negotiating possession timing, is usually the safer sequence.
Some buyers bridge a short gap between closing dates with interim financing or a rent-back arrangement with the new buyer, but both add cost and complexity, and a lawyer should review either structure before you rely on it.
The right sequence depends on your equity position, how quickly Nutana homes like yours are actually selling, and how firm your next purchase needs to be.
Get your hand-reviewed valuation from Joel Dyck.