Guides · Later life · 15 min read · Updated September 2026

The house for old age

The tradition gave its elders the best room in the house and the research says why that was right. The principal hall of the courtyard house and who slept either side of it; what a room for later life asks that a younger room does not, the light doubled, the bed a hand higher, the stair with two rails, the threshold that is no threshold; the falls that the home causes and the modifications that prevent them; and what a designer adds to a tradition that kept its elders warm and near the sun.

Oriented SW 213°

Earth

Fig. 01 A chair in the sun. The tradition’s room for age was the one the sun reached, and the research on falls and light agrees with it.

The classical house was built round its oldest members. The principal hall faced the sun, the elders slept either side of it, and everyone younger was a step further from the light and a step nearer the gate; the plan was a diagram of the family with age at its centre. The modern house has no such plan, and the room of someone in later life is usually the room they had before, a flight of stairs from the door and a lit switch from the bathroom. This guide gives the tradition’s room, then the room the research on falls, light and sleep would build, and finds them the same room with a few numbers added.

The principal hall

Plan 01 The generations in a courtyard house A Beijing courtyard house of the classic plan, twenty-four metres by thirty-one, north at the top. The principal hall runs along the north side and faces south, into the sun and the courtyard: its central bay is the hall with the ancestral altar on the back wall, and the two rooms either side of it are the elders’, the warmest, the brightest and the quietest in the compound, furthest from the gate. The east wing is the eldest son’s family and the west wing the second son’s, each a step down in light and standing. The inner gate divides the family’s court from the outer one, where the gatehouse rooms along the south wall hold the kitchen, the servants and the study, and the main gate stands at the south-east corner behind its screen wall. The plan is a diagram of a family: the older the person, the further from the street and the nearer the sun, and the site’s guide for later life keeps the same order in a flat.

The courtyard house of northern China placed its generations by the sun. The principal hall, the zheng fang, ran along the north side of the court and faced south, into the light and the warmth, and its central bay was the hall with the ancestral altar on the back wall, where the family received guests and its dead. The two rooms either side of the hall were the senior generation’s: the warmest in winter, since they took the sun all day and the kang, the heated brick bed, ran from the kitchen flue; the brightest; the quietest, being furthest from the gate and the street; and the nearest to the altar, which is to say nearest the ancestors the elders would shortly join. The wings, the xiang fang, along the east and west sides took the sons’ families, the east for the eldest, each a step down in light and standing, and the gatehouse rooms along the south wall, facing north into the court, took the kitchen, the servants and the study. Knapp’s survey of China’s old dwellings gives the plan and its variants from province to province, and finds the order the same in all of them: the older the person, the further in and the nearer the sun. The Analects’ filial piety was a plan before it was a virtue, and the plan is the tradition’s whole teaching on the house for age: give the elders the best room, and the best room is the one the sun reaches.

What the room asks

Fig. 02 A room for later life in section, with the numbers that furnish it. The bed is set at fifty-two centimetres, a hand higher than the usual forty-five, so that the knees do the least work in rising; the chair beside it has arms and a seat at forty-seven, for the same reason. A night light sits at thirty centimetres on the wall between the bed and the door, on a sensor, so that the way to the bathroom is lit without a switch being found; the switch itself is at a hundred, where a hand rests, and a grab bar stands at ninety by the door, which a hand reaches for before a fall and not after. The threshold is no threshold, a change of surface flush with the floor, since a lip of two centimetres is the commonest trip in a house. The stair has risers of seventeen and treads of twenty-eight, a rail on both sides at ninety above the nosings, and a nosing in a contrasting colour, which is what an older eye needs to see the edge. The light in the room is doubled: three hundred lux in general and five hundred where the hands work, because an eye at seventy needs two to three times the light of an eye at twenty to see the same. The numbers are the accessibility standards’ and the falls literature’s, not the tradition’s, which kept its elders warm and near the sun and left the rest to the household; the section is what a designer adds to the tradition’s room. Templer’s studies of stairs and the Cochrane review of home modifications are the sources for the stair and the bar.

A room for later life asks what the tradition’s room gave and a little that it did not, and the drawing above gives the numbers. It asks for light first, more than a younger room, because the eye at seventy takes in a third of the light the eye at twenty does and loses contrast with it; Boyce’s text on lighting gives the two to three times more light an older eye needs for the same task, and the lighting guide’s levels are doubled here, three hundred lux across the room and five hundred where the hands work, with the glare kept down, since an older eye is also slower to recover from a bright window. It asks for the sun, for the same reason the tradition gave it, and for a further one: Rosenthal’s winter light and the circadian research the sleep guide gives apply more, not less, with age, when the body’s clock weakens and the morning light that sets it is the cheapest medicine there is. It asks for a bed a hand higher than usual, fifty-two centimetres rather than forty-five, so that rising is a lean and not a lift, and a chair beside it with arms, at the height of the knee. It asks for the way from the bed to the bathroom to be short, straight and lit without a switch, a night light on a sensor at thirty centimetres on the wall, because the fall at three in the morning is the one the literature counts most. It asks for a bar by the door and the bath, at ninety centimetres, where a hand goes before a stumble; for a threshold that is no threshold, flush, since the lip of two centimetres is the commonest trip in a house; and for a stair, if there must be one, with a rail on both sides at ninety above the nosings, a riser of seventeen and a tread of twenty-eight, and a nosing in a colour the eye can see. The bedroom and bathroom pages give the rooms; this is what age adds to them.

Evidence · Falls, and the house that causes them

A third of people over sixty-five fall in a year and the home is where most of them fall, on the stair, in the bathroom and at night on the way to it; the World Health Organization’s global report gives the figures and the settings. The Cochrane review of a hundred and fifty-nine trials finds two things that reliably prevent falls at home: exercise for balance and strength, and a home-safety assessment with modification, the bars, the lights, the thresholds and the rails, which works best for the people at highest risk and when an occupational therapist does the assessing. Templer’s studies of stairs find the missed step at the top and the bottom of a flight, the tread too shallow for the foot, and the rail that was not there to be reached for, and his dimensions are the ones in the drawing. None of this is feng shui. All of it is the tradition’s room, which put its elders on one floor, near the light and away from the street, with the numbers the tradition did not have.

The night route

1The bed at knee height, 52 cm, a lamp and its switch at the pillow
2The route: three metres, straight, nothing on the floor
3A night light at ankle height along the route, on a sensor
4The door left open at night; no threshold, or a flush one
5A grab bar at the toilet and the light switch inside the door
6The rug gone, or fixed down at every edge; no cable across the route

Plan 03 The night route, bed to bathroom The room for later life with the one journey the falls research cares about most drawn on it: from the bed to the bathroom at night, the journey that gathers most of the risk factors the falls research names. The bed stands at knee height with a lamp and its switch at the pillow, so that the first thing a hand finds is light. The route is three metres, straight, with nothing on the floor; a night light at ankle height along it, on a sensor, lights the floor and not the eyes; the bedroom door is left open at night and its threshold is flush, since the raised sill of an old house is the step the foot does not expect. In the bathroom a grab bar stands at the toilet and the light switch is inside the door at the hand’s height. The rug is gone, or fixed down at every edge, and no cable crosses the route. Everything on the plan is in the Cochrane review’s list of what a home-safety assessment changes, and everything is also the tradition’s room for the elders, which put the bed near the light and the way to the door short and clear.

Of all the journeys in a house the falls research singles out one, and the plan above draws it: from the bed to the bathroom at night, in the dark, on a floor the foot knows and the eye cannot see, by a person who has just stood up from lying down. The six changes on the plan are the ones the Cochrane review’s home-safety assessment makes, and each is a number. The bed at knee height, fifty-two centimetres, so that the rising is a lean and not a lift, with a lamp and its switch at the pillow, because the first thing a hand should find in the dark is light. The route three metres and straight, nothing on it, no chair pulled out, no basket, no cable, which is the tradition’s clear floor asked for by the physiotherapist. A night light at ankle height along the route on a sensor, since a light at the eye wakes the sleeper and a light at the floor shows the floor, and the lighting guide’s rule that the night’s light should be low and warm applies here with a reason that is not sleep but the step. The bedroom door left open at night and its threshold flush, because the raised sill of an old house is the step the foot does not expect, and the doors inside guide’s solid closed door is given up for this room at this hour. A grab bar at the toilet, at the height of the hand of a person half-risen, and the bathroom’s light switch inside its door where the hand falls. The rug gone, or fixed at every edge, since the curled corner of a loose rug is the commonest single cause in the review’s trials. None of the six needs a builder, and all six together cost less than one night in a hospital; Gillespie’s review finds them most useful for exactly the people who fall most, and finds that an occupational therapist choosing them for the house does better than a list. The tradition’s room put its elders on one floor with the bed near the light and the way to the door short, and the plan is that room with the night drawn in.

The flat, and the house on one floor

The courtyard house was on one floor and most of what it gave its elders came from that. A modern house with the bedroom upstairs and the bathroom down asks an old person to climb the most dangerous piece of architecture in the house several times a day, and the first change the guide recommends is the one the tradition never had to make: a bedroom and a bathroom on the same floor as the door, or a stair fitted with what the drawing gives. In a flat, the choosing a flat guide’s middle floors apply with more force, since a lift that fails on the twelfth floor is a prison, and the guide’s corner unit with two aspects is the tradition’s sunlit room in another form. The quiet guide’s numbers apply too: sleep is lighter with age and noise wakes an old person that a young one sleeps through, and the room furthest from the lift and the street is the right one for the same reason it was in the courtyard. The command position holds, with a change of emphasis: the bed with its head to a wall and the door in view is, for someone who wakes often and rises slowly, also the bed from which the way to the bathroom can be seen and lit.

The room for later life, in order

One floor. Bed, bathroom and door on the same level; if there is a stair, two rails, seen nosings and light at both ends.
The sun. The room with the most daylight and the morning window, not the quiet one at the back.
Double the light. Three hundred lux in the room, five hundred at the hands, and the glare kept off the eye.
The way to the bathroom. Short, straight, clear, and lit by a sensor at knee height.
The bed a hand higher. Fifty-two centimetres, a chair with arms beside it, the head to the wall and the door in view.
Bars where a hand goes. By the door, the bath and the toilet, at ninety; a threshold that is no threshold.
Quiet from the street, not from the house. The far side from the lift and the road, in the middle of the household.
A wall that says the house is glad of them. The pine, the crane, a photograph; the tradition hung its wishes where the old could see them.