This light-coloured masonry building features a prominent arched window and a short flight of concrete stairs leading to an entrance. The exterior is decorated with a vintage-style black lantern, while lush greenery and the branches of a leafy tree frame the scene.
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Balfour Street Terrace

Launceston, Tasmania 2025

A heritage terrace rediscovered, room by room.

The family had lived in their 1860s Launceston brick terrace for a decade. The house was beautiful - asymmetrical facade, arched windows, generous ceilings - but it had stopped working for them. A previous lean-to addition at the rear had made the back of the house dark and cut off from the garden. The traditional Georgian layout of cellular rooms no longer suited a young, growing family. They came to us wanting to open the house up to light and life, without losing what made it special.

One idea, carried through the whole house.

We approached the project as a single, coherent architectural idea rather than a series of separate decisions. The geometry of the original building - its proportions, the rhythm of its arched windows, its symmetry - became the starting point for everything new. The previous lean-to was reworked into a considered addition that continues the logic of the original rather than contradicting it.

A new arched opening echoes the heritage windows of the facade, drawing the eye through the house and pulling the north light deep into the plan. From the street, the addition reads as a natural extension of what was always there. Inside, the connection between old and new is easy and unhurried you move through the house without noticing where one ends and the other begins.

A dark-stained wooden staircase with a prominent bannister frames the foreground of this residential hallway. Through an open doorway, a person sits reading in a bright room featuring a wall-mounted television and minimalist furniture.

The right materials. Nothing more, nothing less.

Every material choice was made with longevity and care in mind. Bricks are locally sourced and carbon-neutral. Structural elements are predominantly sustainably managed timber, reducing the reliance on carbon-heavy steel wherever the design allowed. Flooring, joinery veneers and plywood were selected for their warmth, durability and low embodied carbon - things that sit comfortably alongside the original craftsmanship of an 1860s home, and that will age just as well.

“We had lived in this beautiful 1860s terrace house for a decade, but the needs of our young family had changed. We had never renovated before, but we conveyed our vision to Todd at Cumulus, and the team was able to execute what we’d dreamt of even beyond our expectations. The transformation of the space is remarkable - it’s open, beautiful and functional, and makes spending time at home with our young family and friends more relaxed and enjoyable.”

Bianca, resident

Finding the most considered response within a given budget and context is something we bring to every project. Constraint, for us, is a design tool. The result here is a house that feels generous and grounded, and one that earns its place amongst the heritage buildings it calls neighbours.

This bright, modern kitchen and dining nook features a white marble tulip table paired with a curved, dark leather banquette. A large arched window floods the space with light, highlighting the wooden cabinetry, stone countertops, and minimalist white walls.
This elegant vanity area features deep burgundy walls and an arched mirror backlit with a soft orange glow. The mirror is set above a pink marble countertop and backsplash, with a matching burgundy desk and a sculptural black stool below. This sophisticated bathroom features dual white vessel sinks set upon a pink marble countertop and backsplash. Against deep burgundy walls, two arched mirrors are mounted beneath a sculptural, wave-like wall light, while dark vertical tiles line the adjacent shower area.
This minimalist dining space features a light wood table paired with black modern chairs and a large, spherical paper lantern. A tall, sculptural vase with dried flowers sits on a woven tray, positioned beneath a large arched window that shows a brick exterior. This modern kitchen features a vaulted ceiling and a large arched window overlooking lush greenery. The design includes wood cabinetry, stone countertops, and a curved leather banquette built into the window nook.
This contemporary bathroom features olive green walls and a white vessel sink set on a stone countertop. Above the wooden vanity, an arched mirror reflects a climbing plant and a sculptural wall light, while a potted purple orchid adds a pop of color. This modern bathroom features a hand-crafted wooden bathtub positioned in the foreground. Behind it, a dark-tiled wall is decorated with a climbing green plant and a sculptural white wall light, while a fluted glass shower door stands to the right.
This long, open-plan space features a striking barrel-vaulted ceiling and a large arched window. The design includes sleek wood cabinetry with stone countertops and a dining table set beneath a spherical pendant light.