HJ.Interiors

Case Study · Craft in Progress

The Spiral House.

A hand-sculpted plaster stair, formed by eye and hand — photographed in the raw, before a single finish is laid.

The Making

Before it is beautiful, it is built — one curve at a time.

This staircase begins as nothing but framing and board. Its sweeping form is coaxed into being by hand — sheet by sheet, coat by coat — until the plaster reads as a single, continuous surface. We photographed it at this stage because the craft is never more honest than now: no paint, no polish, only geometry and light.

Location

Sydney, Australia

Scope

Sculptural stair & full render

Stage

Plaster & render · 2026

Materials

Hand-formed plaster, solid render

The ascent

A wall drawn like a ribbon

First light

Skylight over the winder

Looking up

The underside of the turn

04 · The Oculus

A single round opening drops daylight straight down the core of the stair — the whole spiral is built to catch it.

05 — Down the winder

The descent, three ways

Window rhythm

Rounded reveals, hand-rendered

Follow the build

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