A window seat is one of those details that transforms a room from merely decorated to genuinely designed. In New York City apartments — where natural light is precious and deep window reveals are common in pre-war buildings — window seats are among the most beloved custom millwork additions available.
Types of Window Situations in NYC
Deep Window Reveals (Pre-War)
Pre-war Manhattan apartments often have window openings with 8 to 14 inch deep reveals — substantial enough for a real seating surface. A custom cushioned bench built into this reveal creates a reading nook that uses space that otherwise does nothing. Width: as wide as the window opening. Depth: the reveal depth plus a small extension into the room if needed for comfortable seating (16 to 20 inches is ideal).
Bay Windows
A bay window — three or more window panels arranged at angles creating a projecting alcove — is ideal for a window seat. The angled sides provide natural knee walls for a U-shaped bench, and the bay creates the illusion of additional square footage while providing genuine seating and storage. Bay window seats with flanking bookshelves are among the most admired millwork details in NYC brownstones.
Window Alcoves
Some NYC apartments have structural alcoves or recesses adjacent to windows that are natural candidates for window seat treatment. Even without a true bay window, the feeling of an alcove created by flanking built-ins on either side of a standard window creates a similar effect.
Storage Integration
The seat platform of any window bench should incorporate storage — either lift-top (a hinged seat that opens to a storage cavity) or front-access drawers. In a NYC apartment bedroom or living room, this storage replaces furniture that would otherwise occupy floor space elsewhere.
Cost of Window Seats in NYC
- Simple window bench with storage (4 ft): $2,800 – $4,500
- Bay window seat with flanking shelves: $6,000 – $11,000
- Full built-in window alcove with ceiling detail: $8,000 – $15,000