Thanks for your input!

I don't think so. Too much going on and your low point looks to be 8 feet.The horizontal window will look strange with crown just above it. If you want trim you might try wainscot at the bottom, but the ceiling vault is not high enough. You could kick the room up a notch with drapes instead of vertical blinds.

No crown moulding. Not the right house for it.

Hi bobcar59,

I would suggest that you do not install crown moulding in this space. I typically use crown moulding in applications where visual interest is needed or when it is in keeping with the historical architecture of a home. Because your ceiling has so many angles, it is visually interesting as is.

I hope this helps, all the best!

the crown molding would be very hard to terminate on the ends therefore leave it alone.

Agree with no crown.

No crown. Angles and walls don't meet correctly. Just a thought. I don't think you need anything above the entertainment center. it would have a cleaner sight line and neater.

I agree with LB. no crown. very few installers would make it look right.

I suggest maybe paint the angled ceiling of the small angled wall, the same color as the walls to camouflage the unusual architecture?

What about having wood beams installed instead?

You could possibly install fake beams and/or a ridge beam to add interest instead of crown molding although the flat area at the hall may be a bit of a challenge.

Maybe your contractor can create a closed-in soffit and bring the ceiling of the small angled area lower? Then maybe possible to use crown molding?
I also suggest paint all the walls the same color. It will help hide the differences. Drawing is not real accurate but may give you an idea.

Thanks to all who commented!

ndelips, your beam idea reminded me of another ceiling treatment I saw. They installed 1x2 - 16" o.c. running on the ceiling joist and added 1x2 24" perpendicular. This created a grid that sounds cluttered but really looked cool. I"ll try to find it.

I would replace the vertical blind with a Shutter it will look more consistent with the other blinds . Its also alot more modern and clean.