Transitions between old and new affect whether an extension feels coherent. Differences in height, material and structure should be visible early.
What the drawing needs to explain
Show furniture, door swings and circulation on one plan. Mark a quiet workspace and the places where several people pass at once.
Coordinate finished levels
Compare floor levels, ceilings, thresholds and the garden. Include layers still to be added, not just rough construction dimensions.
How to review the result
Rehearse an ordinary evening: cooking, a video call and someone going upstairs. Check whether doors, connection points and lighting support the agreed uses.
Which trade-off matters?
An open living space makes contact easy but offers less separation for sound and work. Compare a fully open plan with closable zones while retaining clear routes to the kitchen and stairs.
Questions for your own property
- Are finished heights known?
- Who designs the junction?
- How are material differences handled?
Can an open living space still provide quiet work areas?
Explore closable zones and all sound transmission paths, including doors and junctions. Choosing a different wall material alone does not automatically address noise through the hall or ceiling.
Illustrative design situations, not evidence of completed work. Assess decisions against the actual property.