Basement apartment floor plan

Resolved model: the hallway strip (stairs + hallway + office closet) runs the full apartment length down the middle. The office closet belongs to that strip, not to the office's own footprint. Living room, auxiliary room, and master bedroom form the street-side strip; kitchen, utility, bathroom, and office (at its full measured depth) form the backyard-side strip. All three strips should total the same true length.

Strip widths (across the hallway)

Living-room-side strip width

Kitchen-side strip width

Hallway width

Wall thickness between rooms (along length)

Wall thickness between strips (across width)

Main rectangle: driveway wall to hallway's end wall

Landing + stairs + under-stair storage

Hallway corridor length

Street side (driveway to side yard): living room → auxiliary room → master bedroom

Living room depth (to true back wall)

Auxiliary room depth

Master bedroom depth

Backyard side: kitchen → utility → bathroom → office

Kitchen depth

Bathroom depth (measured, widest point)

Utility depth (computed remainder)

Office depth (full measured, no closet subtracted)

Bathroom depth is now measured (81.5" at its widest; it narrows to 62.6" near the hallway where the utility room jogs in). The utility room takes whatever length remains between the kitchen and office.

Hallway strip: stairs + hallway + wall + office closet

The office closet's depth is computed automatically so its far wall lines up exactly with the true side yard wall (same end point as the office and master bedroom) — it's not entered separately.