Yes, but the plan is simplicity, itself ... like a small section of the draughting room.
After Mr. Wright's time the space became the financial office for the Frank Lloyd Wright Foundation ... and at one point there were six people working inside, all at individual desks ... Dick, Bruce, 3 hired secretaries ... and me.
Dick's desk was in the rock-wall alcove to the left. Bruce's desk was next to and facing away from the small glass-walled garden, facing into the main space., which contained a large, low square table placed under and against the lowest wall, against which was usually found a large drawing of the Arizona State Capitol ... Two upholstered chairs faced that table.
Two desks were placed under the long, narrow window, which faced north, all under the highest part of the canvas/plastic roof, and, finally, there were room for two secretarial chairs located beneath the high east-facing window ... their "desk" nothing but a slab of 8 foot long plywood, supported by a row of metal two-drawer file cabinets, the drawers of which opened into the main space.
A large fireplace occupied the North East corner of the office, and it got heavy use on cold winter days.
Visitors and guests always entered the office to make inquiries, and whenever it rained .... the office could get quite crowded with people waiting for a tour ... Occasionally, during heavy downpours visitors had to dodge buckets on the floor, placed there to catch rainwater dripping from leaks in the roof.
Today the office is lined with chairs ... used primarily as a place to help introduce visitors to Mr. Wright and Taliesin West, prior to beginning their tour.