There is a question that almost never gets asked early enough in the design of a house: how much is enough?

Not how much can be afforded. Not how much the block allows. How much the life inside the house actually requires — which is a different question, and a harder one, because it has no obvious answer and no professional incentive behind it.

Enough is not a compromise. It is a measurement no one has agreed to take.

—

More is the easier argument. A larger kitchen photographs better. An additional living room resolves a disagreement about evening preferences without anyone having to negotiate. A fifth bedroom answers a hypothetical future before it has arrived. Every addition has a reason, and every reason sounds sensible alone.

Harder to argue for is the room never built — the one used four times a year, that would have taken longer to heat than it was worth, that would have sat at the end of a corridor collecting the stillness unused rooms collect.

Excess does not announce itself as excess. It arrives as reasonable additions, one at a time.

—

The idea of enough is not about smallness. A small house built without judgement can be just as excessive as a large one — cluttered, over-furnished. Enough is a relationship between a space and the life inside it, not a measurement in square metres.

A house with exactly enough rooms, each used with some regularity, produces a different feeling from a house with rooms to spare. The second kind has slack in it — spaces the household has stopped noticing, square metres that cost money to heat, clean and maintain without giving anything back.

A room nobody enters is not a luxury. It is a debt the house pays quietly, every day.

—

The Japanese concept of ma — the considered space between things — offers a useful counter to the instinct toward more. Ma is not empty space waiting to be filled. It is space doing its own work: framing what surrounds it, giving the eye and the body somewhere to rest between one thing and the next.

In a house, this is rarely an extra room. It is the gap between the kitchen and the dining table, left open rather than enclosed, that lets one space breathe into the other. It is a hallway with nothing in it but the right window, holding a view a corridor would otherwise simply pass through. It is a courtyard that separates one part of a home from another without adding a single square metre to its footprint. It is a room asked to change with the day — study by morning, sitting room by evening — rather than two smaller rooms each performing one function badly.

What is left out is doing work. It is not absence. It is restraint, and restraint has a shape.

—

In Canberra this has a particular weight. An extra room facing the wrong direction is not a neutral cost — it demands heating through a long cold season, or overheats through a harsh summer if unshaded to the west. Every additional square metre of footprint is taken from the garden, the daylight reaching the rooms beside it, the courtyard that might otherwise have given the house its outdoor room. Enough, in this climate, is not only a philosophical position. It is a thermal one.

This has a direct cost consequence, rarely framed this way. The house with one fewer room is not just cheaper to build — it is cheaper to live in for every year that follows. Less to heat, clean, maintain, repaint, reroof, replace. The saving compounds quietly across decades, long after the build cost is forgotten.

But the deeper argument is not financial. A house built to exactly what a life requires has a kind of integrity that a house built to exceed its requirements cannot have. Every room is necessary. Every room is used. The house and the life inside it are in proportion to each other — which is a quality that no amount of additional space can produce, because proportion is not about size. It is about fit.

The right size for a house is not the largest one a family can afford.

It is the one their life actually fills.

Discover the Taste of Architecture.

— Shiraz Atelier