Windowless interior office

Not true. You can call it walk-in closet/storage in the plan submitted to DOB. If your architect is very concerned leave it with a large opening - say 5 feet - in dob application. To my knowledge, there is no restriction on putting a door afterwards and slightly narrowing the opening. And if your architect can not figure out, time to a get a new one including expeditor.

Check out all those places in TriBeCa with interior rooms called “studies” that are basically being sold as bedrooms

Check out all those places in TriBeCa with interior rooms called “studies” that are basically being sold as bedrooms

He is correct - you can not have an interior windowless room. You have to call it something other than a room.

@30yrs- so what do they call all those windowless rooms in TriBeCa? Which definitely exist

@30yrs- so what do they call all those windowless rooms in TriBeCa? Which definitely exist

I've seen them labelled as "foyer", "alcove", "nook" but my guess is that they are called nothing when submitted to DOB.

See here the unit is marketed as a 2 BR:
https://streeteasy.com/rental/2466282

Here it is labeled as "study" (in the marketing floor plan; who knows what they submitted to DOB):
https://streeteasy.com/building/twenty-exchange/1124?featured=1

DOB has no issue as long as you do not call it a “room” or room like description in the application. You can call it “wine storage”. An architect in the city is supposed to know all this rather than telling a client it is not possible to have a 8x10 separate area.

300,
That was my point in my original Post in this thread.

I usually see those marketed as a "den."