Open plan is often sold as a quantity: more opening must mean more improvement. In a real house, the useful quantity may be one clear sightline, one easier route, or enough room for two people to pass.
Name the problem before removing the wall
Write down the moment that feels awkward now. Is someone cooking cut off from conversation? Is the dining room hard to reach? Is the garden hidden? Draw the smallest opening that improves that specific moment, then compare it with the full removal.
A cased opening can connect rooms while leaving a wall return for furniture or kitchen storage. Full removal can make a strong shared living area. It also asks the sofa, table, lighting, and kitchen to form one composition instead of several smaller ones.
Draw the furniture and listen
Place the furniture you actually intend to keep. Consider a television, a dishwasher, a person on a call, and someone cooking. An open sightline is also an open route for ordinary household noise. A cased opening does not provide acoustic isolation, but it may preserve a useful sense of separate rooms.
Let the structure set the feasible choices
Toronto lists wall alterations among projects requiring building permit review. Have the load path, supports, services, and project approvals assessed before choosing an opening size. A modest-looking widening is not automatically minor work.
Our preference is to remove enough wall to solve the actual problem. Choose full openness when the whole room plan benefits. Keep a deliberate frame when it gives connection without sacrificing the places where everyday life needs to put things.