Yes, yes, yes and yes! :)

Can't have crown molding without window trim. It just isn't right!

so, yes.

Crown molding with mini blinds doesn't work either--just sayin. Match your crown molding. Finish the room.

If the rest of the house doesn't have window trim (and you don't plan to install it throughout), I probably wouldn't bother. My husband's old house didn't have it (nor did any of the other homes in his new-construction neighborhood). While I think windows look a lot nicer trimmed out, it might look strange to "frame" a window that has drywall sills and jambs. But if you're planning to live it the house for a long time and you think it would make you happy, then it's probably worth doing. As far as style, I'd go with whatever kind of trim is around your doors so it doesn't look incongruous with the rest of the house.

Definitely trim out around the windows and you can add a nice wood sill at the same time. We matched our wood blinds to our window trim. I think any house looks better with trimmed out windows/doors (whether you have crown molding or not). Just my opinion.

ETA: I would do the whole house, not one room.

No, I wouldn't, , especially since the house seems to have a more modern, minimalist vibe (but may need a new dining room light fixture).

What do the windows look like? I would even consider removing the crown molding.

Montcalm Street · More Info

Modern is Modern Again in Portola Valley · More Info

Could you paint them black? And just add some shades.

I like the minimalist vibe going on too, and would not add any trim. I would, however, consider painting that accent wall the same neutral color as the other walls. Right now, the red wall with the light-colored blinds looks like a "tooth" in a red mouth. ;-)

No, I sure wouldn't add trim.

I'd go for some Scandinavian vibe with those light floors and all white creamy wall paint and definitely more lighting.

I started installing window trim and I love it. I have aluminum windows. I looked for pics of what I liked and settled on a linear craftsman-style trim.

Definitely find a pic of the trim style you like and consider committing to it in other areas of the house if you do this. I think you can get away with not doing it in certain areas where outside mount window treatments or draperies might be used, but IMO there should be some repetition of the trim style so that it looks cohesive throughout the house. If you only do some windows, choose a design that will blend with the windows and doors you choose not to trim out. Or you could trim out all sills and maybe skirts, and only fully frame selected windows.

If you follow the pic almost exactly, it will be easier to be happy with the result. I get overwhelmed with choosing moulding. You won't know if you like it until it is all done. Mine never looked right when partially finished, but when everything was caulked and painted and the view was framed, I loved it.

I put 3/16" luan plywood over the drywall ( inset top and sides), replaced the sill with select pine, and trimed out the sides with 1x select pine, all caulked and painted semigloss white.

Drawbacks:

The luan completes the wood look, but I had to ditch my old inset window treatments because they were too tight. The luan consumed an additional 3/16 inch on each side. I'll either have to get new window treatments or go without. I don't care for window treatments that are not inset.

I really needed to replace the sill (not clad it) to keep enough clearance for the window to remain easily operable. Fortunately the interior sills for the first two windows I did came out easily since they seemed to be attached to the skirt and not nailed to the framing studs. (I have 8 more windows to do - hope they will be this easy.)

if you plan to replace the windows, do that before or you may have to tear your work out. Also plan your window treatments and valances in advance so you can adjust the design for those features if you want.

It was a lot of work. But not terribly hard work. I am a novice.

Seeing the windows and nosoccermom's examples, I am changing my opinion. I do agree with her about removing the crown.

I didn't think anyone removed crown these days. :) (Not wanting crown really confused my GC...)

Anyway, if you do want trim AND you want faux wood blinds, consider plantation shades which kind of do both.

Are you in Florida? We do not have wood trim on our windows in Florida, just drywall returns. This is not only to prevent termite infestations, but also our constant sunshine wreaks havoc with wood. I have marble sills. We do have wood trim around all doorways. That being said, I do have two-piece crown molding and large baseboards in my entire home which has 12 foot ceilings. I would keep the look you have now. Move on to other things, such as painting or window dressings. ;-)

I'd love to take on that project if I lived nearby. :) Since I retired, I have specialized in making changes to bland rooms or entire homes. Anything can be done with $$.

I wouldn't trim. I'd also remove the crown and baseboard. Replace the baseboard with a simple trim that actually fits under the windows.

No trim around windows, no base, no crown??? Yeah, I wouldn't make a good "minimalist"!

I would not add trim - I do not think it goes with the diagonal floor planks, and I think it would make the room look more choppy.

We had drywall return with a ledge...ended up doing window jambs with a trim due to our carpenter wanting to make more $$ (lol!), and we love it!