The tiles on my stairwell are green until they are not.

In the middle of each step the glaze has worn to a pale crescent where decades of feet have agreed to land. The edges stay darker, almost emerald, framing the path like a lesson in repetition. I have climbed these stairs thousands of times and only noticed the pattern properly last month when the lift was down for servicing.

Climbing is slower than riding. Slower lets the building speak in small sounds: a door closing three floors up, a child practising scales, the hum of someone's air-conditioner starting its cycle. The stairwell is the building's throat — not pretty, always echoing slightly, honest about who is home and who is not.

On the landing between the fifth and sixth floors there is a window with a view of nothing special: another block, a slice of sky, a tree that has learned to lean. I stopped there with groceries splitting the plastic slightly — the old bag fault — and rested thirty seconds longer than necessary. The tiles under my shoes matched the ones under everyone who has lived here since before I arrived.

I typed this note at the kitchen table because the stairwell note was only four lines in my phone. Expansion happened in the typing, which is often where memory adds texture without adding fiction. I remember the bag fault. I do not remember what day the lift returned.

HDB architecture is discussed as policy elsewhere. Here it is discussed as texture: rail height, tile colour, the way light falls at four in the afternoon and makes the corridor look longer than it is. These are not observations that change anything. They are how I locate myself inside a city of repeated forms.

If you live in a high-rise, take the stairs once without treating it as exercise. Treat it as reading — each floor a paragraph, each landing a pause, the roof door a ending you may or may not choose to open.

The pale middle of each step is a map of collective habit. I add my own weight to it twice a day and will leave a crescent too small to measure.

When the lift returned it arrived with a notice about inspection dates I did not read closely. The stairwell note had already done its work. Sometimes infrastructure reminds you that maintenance is the real plot of high-rise life — not drama, just scheduled care and the occasional outage that forces patience.

I photograph the tiles mentally rather than with a phone. Green fading to pale, edges holding colour, the window on five throwing a rectangle of sky onto the landing. These are not images for sharing. They are images for locating myself when the city outside feels too wide.

A child drew chalk on the wall near the ground floor — a hopscotch grid already smudged by shoes. The stairwell tolerated it. Estates absorb small marks of play the way tiles absorb feet: gradually, without announcement.

On the way down later, the lift worked again. I took it without guilt. Stairs for noticing; lifts for groceries — a reasonable treaty.