Sounds like you have a good plan, call an experienced, recommended, reliable contractor. Maybe he/she can help you with an interior room divider, for the front door direct to lounge problem too. Here are some ideas https://www.houzz.com/products/room-divider-prbr0lbl-pl~l_38829

Thank you so much for your comment after all this time. The colour you have suggested brightens the front door area beautifully and if the two red pots were painted in a tone to match, we think it would look great. Not sure if you can get Crestview doors in New Zealand but there must be something similar. We like the idea of going away from another cedar door - mainly because it would stand out too much while it was weathering. I don't know whether we would have been that brave but the tangerine works so well with the jade green of the joinery. I have re-laid all the stones and put a new wider front step in. The timber colour will soften down in time. I put a big pot in the garden to draw visitors to the front door and have added some colourful bromeliads to the garden alongside the house to make the area a bit more cheerful. We can't make a decision about what to do with a larger 'overhang' to protect the front porch yet - it is a project in progress. Thanks again for your post.

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This is a similar home. Does the architect's response help you? "Yes the soffit is painted ( Resene Bokara ) to make it similar to the cladding. We did it this way in order to emphasis the sculptural form of the house - if it was white it would have broken up the form somewhat. I think it depends on what you want to achieve, if the line of the joinery is at ceiling level then it is good to have the ceiling and the soffit the same colour in terms of how you experience the interior space. If the exterior look is more important then the dark soffit would probably work better."