The plan is the deepest constraint

What the plan decides

Three things, and each of them appears repeatedly in this record. A fair pilot separates presence from outcomes, and teams can remote schedule reporting for managers while agreeing what the software may collect and what still requires direct conversation.

Which rooms are reachable independently. In this flat, every room opens off the hall, which is the best possible arrangement for this purpose: nobody has to walk through an occupied room to reach another. That is the single most helpful structural feature of the dwelling and it is the reason the hall's ten square metres are not a waste. This observation can be read alongside workplace and design research from JLL.

Which rooms share walls. The kitchen shares one with the living room, which is why cooking is audible where somebody is working. Bedroom two shares one with the hall, which is why a call is audible to anybody passing.

Where the activities with fixed places have to be. The hob is where the hob is. The washing machine is plumbed in. The sockets in bedroom one are on the wall where a bed goes, which is why a desk in bedroom one runs an extension lead across the floor, which is why bedroom one was not the quiet room.

The counterfactual flat

The household was asked what single change to the building would have helped most, and the answer was not more space.

It was the position of one wall: the kitchen and living room share a wall, and the flat would be substantially easier if the kitchen instead shared a wall with the hall and the living room were at the other end.

That change moves no square metres. It creates a dwelling in which somebody can cook while somebody else works in the living room, which on this record would remove perhaps eight collisions.

The useful change is a wall in a different place, not a flat with more walls in it.

Why this is invisible to everybody

A floor plan is published with every property. People look at them.

What they look at is room sizes and the number of bedrooms, because those are the things a plan makes easy to compare and because they are what the price depends on.

Adjacency — which room is next to which, and what passes through what — is on the same drawing, is harder to read, and determines whether two people can do different things at the same time.

Nobody in this household looked at adjacency when they took the flat. Both said afterwards that they would now, and neither could say what they would be looking for beyond "the noisy room next to the hall rather than the quiet one".

What a household can do about it

Very little directly, and one thing indirectly.

The plan cannot be changed. What can be changed is which room is used for what, and the log records one instance of this being done well.

Bedroom two became the office rather than bedroom one, and the stated reason was the extension lead. The unstated and more important reason is that bedroom two is at the end of the hall and bedroom one is next to the living room. The household chose correctly for a reason that was not the best reason available, which is as good an outcome as accident usually produces.

That is the available move: given a plan, work out which room is acoustically furthest from the activities that make noise, and put the activity that needs quiet there. It costs nothing, it is done once, and on this record it was done right by luck.

The one adjacency that works

Everything on this page is about adjacencies that cause trouble. One of them is doing the opposite and is worth naming.

Bedroom two is at the far end of the hall from the kitchen, with the hall and a wall between them.

That is the longest acoustic path in the flat, and it is why the quiet room is quiet enough to be usable at all. A dwelling of the same size with the two bedrooms adjacent to the kitchen would have no room where a call can happen while anybody cooks, and the whole of this record would be different and worse.

Nobody chose it. The household allocated bedroom two for a reason about a socket, and got the best acoustic position in the flat as a by-product.

The question to ask of a floor plan

Having found that adjacency matters more than area, the household was asked what they would look for, and produced one question that does most of the work.

Which room is furthest from the kitchen, and does it have a door?

That identifies the quiet room before anybody moves in, in about five seconds, from a drawing that comes with every property.

It would not have changed which flat this household took. It would have told them on day one what took them six months and a fortnight of logging to arrive at, which is that bedroom two is the office and bedroom one is not.