7 ideas
A pattern is a recurring problem in the environment plus the core of its solution, stated so generally that you can apply it a million times without ever doing it the same way twice. Each pattern names a relationship between a context, a conflict of forces, and a spatial configuration that resolves those forces.
Individual patterns are not isolated rules but link together hierarchically: large patterns (towns, neighborhoods) are completed by smaller ones (rooms, windows, alcoves) nested inside them. To design anything you string patterns together like words into sentences, where each pattern needs both the larger patterns it sits within and the smaller patterns that complete it.
The people who live and work in a place understand its needs better than any outside professional, so a shared pattern language lets ordinary inhabitants generate good environments themselves. Expertise should be encoded into accessible patterns rather than hoarded by specialists, dissolving the boundary between designer and occupant.
Healthy environments grow by accretion of small, individually decided acts rather than by single large master-planned interventions. Each repair or addition responds to the actual current state of the whole, allowing the structure to adapt continuously instead of being fixed in advance and then degrading.
Look at any place not as a static form but as a field of competing forces — the need for sunlight versus enclosure, for gathering versus privacy, for movement versus rest. Whether a space works depends on whether its physical arrangement lets these forces come to rest, so diagnosis means identifying which conflicting pressures the design has failed to reconcile.
People gravitate toward rooms lit from two sides and leave rooms lit from only one side unused, because single-side light produces glare and harsh contrast against the window. That contrast makes faces and fine detail hard to read. Given any choice, rooms should be placed so daylight enters from at least two directions.
People feel pulled both to take part in the life of a room and to withdraw into a small space of their own within it. A window seat, alcove, or nook near the edge settles this tension because a person can sit at the light and the view while still being part of the room. Rooms without such edge places feel restless, because nobody can stay comfortably in them.