Raj - What you say is true that a lot of interior design's margin is in furniture. I will not sugar coat it. And many designers may seem to be more interested in that when you bring them in. But I have had several clients call me over the years saying they are building a new home and would like to consult primarily on layout. When you speak to someone is tell them you are not ready to order furnishings or window treatments, but that you would like a contract that focuses on layout, planning, and interior detailing (i.e. doors, trims, floors) - i.e. the bones of the house. What I would suggest is when you call for a designer, you be prepared to pay a good consultation fee. A good rule of thumb is that you can expect to pay between $3-$10 per square foot of your home depending on the area of your country and the expertise/experience of the designer. If you are not averse to paying this type of fee, and communicate to the designer that your interest is in getting the best solutions, not in purchasing furniture at this time, I'm sure you will be able to get the level of service you desire. If someone you talk to doesn't seem thrilled to provide this kind of service, move on to the next person. Don't rely on "fame" or how well known someone is. They may be well known for doing show houses or just because they've been in the field the longest in your area. Not because they're the right fit for you. You could also check the Houzz directory for good designers in your area. The difficulty is that there are often decorators whose expertise and focus is really just on furnishings not so much on construction - and they serve a purpose for their clients. But there are other designers who provide more of a wholistic approach and have more familiarity with building a new home. These are the people you should seek out. Houzz is a fantastic community - and as I said you may get good advice here but there's really no replacement for someone to work with you in person. Sorry for the super long post but I feel passionately about this and I think this advice will best suit your needs.

Since the lot you describe is smaller than my open living area, I would suggest looking at some of the "shotgun" house plans around New Orleans,LA. I think you can build up and back and get an interesting home with a loft for space. It can be done, A porch with an entry to a narrow hall at the back might work best for you. Will you plan a courtyard (closed)? or what? What part of the country are you in? What are your local codes?

I think a comfortable distance between the island and the counter is around 42". It seems that you have only 30" between your cook top and the counter. I might be a little too tight. The wall between the entrance and the kitchen could be 4' long instead of 6', you would then be able to move the island a foot which would give you more room between the cook top and the island. Could you switch the location of the toilet and vanity in your dad's bathroom so your enter facing a vanity instead of a toilet which is a lot nicer.

Leather sofas can really dominate the room and can give an overall cold feeling. I would add some earthy elements, like a wood coffee table with glass or metal. Go to Restoration Hardware's website and look at their sofa room scenes. And I'm sorry I think the art is too harsh for the room. That's all your eye goes to in the room. too overpowering. I would look for something softer or maybe a cool mirror and I would add color to the room with pillows and some colorful lamps. I also think woven blinds would look great. They add warmth and give a finished look. The color of your window treatments should contrast your wall color a bit, not match it or else it starts to look generic and blah.. You have warm walls, warm floors and the woven blinds, like Hunter Douglas brand would pull it all together for you.