Hotel service corridor with fluorescent strip lighting, linen carts parked against the wall

1.01 · Back of House

The Corridor That Holds the Building Up

The service corridor is not residual space. It is the hotel's load-bearing argument — structurally, logistically, and architecturally.

By the Section Desk · Back of House · 7 min readPhoto: cottonbro studio / Pexels

Read the sheet downward

Sheet A-201 · five levels · 25 notes

R · +164'-0" 05Reuse Grand hotels converted to housing, offices, colleges, and mixed use — what the structure permits, what the ballroom floor refuses, and where reuse fails. 6 notes M · +22'-0" 03Ballrooms & Banqueting Long-span structure, rigging loads, divisible walls, and the service sequence that sets a room for five hundred before the guests arrive. 4 notes G · ±0'-0" 02The Lobby The lobby as civic room — its column grids, terrazzo programmes, mezzanine logic, and the slow argument about who it belongs to. 5 notes S · SITE 04The Motor-Hotel Era The strip motel and the roadside tower — how car culture reshaped hotel typology in mid-century America and what that produced structurally. 5 notes B1 · −14'-0" 01Back of House The infrastructure beneath the marble — service corridors, mechanical floors, laundry, kitchens, and the logic that keeps the guest side running. 5 notes

Datum ±0'-0" at lobby floor. Elevations are typical, not a specific building.

Weathered wall painted in yellow and orange bands, with a vertical crack running through both

2.01 · The Lobby

Terrazzo Reads the Room

Hotel lobby terrazzo floors are not decoration. They are zoning documents laid in aggregate and cement — and they repay close reading.

By the Section Desk · 6 min readPhoto: Digital Buggu / Pexels

Hotel laundry room with commercial pressing equipment and steam, worker in background

Detail 07 · scale 1:5

Every dimension in a hotel starts somewhere unglamorous — a cart width, a chute diameter, the turning circle of a delivery truck at six in the morning.

From the survey notes · Photo: Alec Adriano / Pexels

Large hotel ballroom with banquet tables set and house lights on, no event in progress

Level M · +22'-0" · in focus

Ballrooms & Banqueting

Long-span structure, rigging loads, divisible walls, and the service sequence that sets a room for five hundred before the guests arrive.

3.01Spanning the Ballroom 3.02The Folding Wall's Broken Promise 3.03Setting a Room for Five Hundred 3.04The Grid Above the Chandelier

From the survey notes

B1 · Back of House

The night-audit office was not a closet. It was a calculation, built into the plan. The Room Behind the Desk →

S · The Motor-Hotel Era

Roadside hotel signage was an architectural element and a zoning battleground — this piece covers the structural anchoring of large neon road signs, the ordinance fights that removed them, and why their absence changed how the buildings read from the street. The Sign That Named the Building →

R · Reuse

Converting a downtown hotel to residential use is frequently proposed and frequently stalled — this piece identifies the specific building-code and structural gaps that make it harder than it looks, without pretending the economics are simple. Hotel to Housing: Where the Numbers Break →

Everything on the sheet

Full sheet index →

R · +164'-0" Reuse 6 notes M · +22'-0" Ballrooms & Banqueting 4 notes G · ±0'-0" The Lobby 5 notes S · SITE The Motor-Hotel Era 5 notes B1 · −14'-0" Back of House 5 notes