Krisna Cheung Architects Dissolves a Melbourne Terrace House into Its Own Backyard

Three square meters. That is the total area Krisna Cheung Architects added to a Victorian terrace house in North Melbourne, yet the spatial effect is wildly disproportionate. By removing the corridor that once separated living room from backyard and folding the kitchen into a single, continuous joinery element that runs from interior shelving to outdoor BBQ bench, the practice turned a modest inner-city terrace into something close to a pavilion. The pergola itself, an angled polycarbonate canopy covering the new threshold between house and garden, is less a structure and more a thesis: that the most powerful move in residential architecture is sometimes subtraction.

Completed in 2021, the project belongs to a longer narrative of intervention on the same property. An earlier phase produced the Studio Garage Façade, and this extension is designed to visually echo and celebrate that work. What holds the two together is a material sensibility grounded in steel, timber, and reuse. Bricks salvaged from the original rear wall resurface as garden landscaping; timber flooring pulled from demolition returns underfoot. The staircase, designed in the 1990s, lent its steel detailing to new joinery, so the house reads not as a series of renovations but as one evolving spatial idea.

The Corridor That Disappeared

Most terrace house renovations in Melbourne add volume. This one deleted a wall sequence. The corridor that once channeled movement between the living area and the rear yard was the spatial bottleneck of the plan. By removing it and repositioning the kitchen, Krisna Cheung created an open plan that reads in section as a gentle slope from interior floor level down through concrete steps to garden grade. The translucent polycarbonate ceiling panels flood the former corridor zone with diffuse daylight, making what was once the darkest part of the house its brightest.

Sliding glass doors at the garden edge can retract entirely, collapsing the boundary between living room and courtyard into a single continuous surface. The stepped concrete planters and a mature tree anchor the outdoor space with enough weight to feel like a room in its own right, not merely a leftover gap behind a terrace row.

Joinery as Connective Tissue

The kitchen is the engine of the plan. White upper cabinets give it a clean datum line, but the real story is at bench level, where timber-slat cabinetry extends beyond the kitchen zone and morphs into bookshelves in the living area and a barbecue bench in the backyard. It is a single piece of architectural logic stitching three distinct program zones together. The timber slats reference the steel detailing of the existing 1990s staircase, a deliberate act of material dialogue between decades of work on the same house.

Open shelving replaces wall cabinets along one run, bringing potted plants and everyday objects into view. The effect is domestic and unprecious. Family-crafted bookshelves elsewhere in the house reinforce the sense that this is architecture made with, not just for, its occupants.

The Pergola and the Polycarbonate Ceiling

The pergola itself is the project's title element and its most visually distinctive move. An angled polycarbonate canopy extends from the rear wall over a timber deck, sheltering an outdoor dining table while remaining acoustically and thermally insulated. The material choice is strategic: polycarbonate transmits light without heat gain, enabling passive daylighting deep into the plan. At dusk, the effect inverts. Interior light glows through the translucent panels, turning the rear of the house into a lantern visible from the courtyard.

Beneath the canopy, an outdoor sink and prep area extend the kitchen's utility outdoors. The timber deck steps down to concrete planters, and the transition from covered to open sky is gradual enough that the pergola never feels like a hard boundary. It mediates between inside and outside without belonging entirely to either.

Facade and Rooftop

The street-facing corrugated metal facade sits quietly in the terrace row, its illuminated doorway the only hint of intervention. Overhanging tree branches soften the industrial material into something almost rural. This is the Studio Garage Façade from the earlier phase, and the pergola extension was designed to echo its restrained material palette. The relationship between the two projects is best understood from the rooftop terrace, where tiled paving and glass skylight panels offer views over neighboring treetops and down through the polycarbonate ceiling into the living space below.

Material Reuse and Craft

Salvage runs through the project as both ethic and aesthetic. Bricks from the demolished rear wall were repurposed as garden paving and planter edging, keeping the material memory of the original house literally underfoot. Timber flooring reclaimed from demolition was relaid, its patina a visible record of the house's previous life. In the bathroom, timber cladding wraps the tub surround, pairing warmth against white square tiles and frosted glass. The palette is consistent without being monotonous: every surface has been handled with an attention to touch that elevates modest materials.

Plans and Drawings

The elevation and plan drawings reveal the site's slope, which the design exploits to create the stepped transition from living area to garden. The west elevation shows the pergola's angled roofline breaking away from the terrace row's uniform profile, while the site plan clarifies the tight relationship between house, courtyard, and street frontage. The tree that anchors the courtyard in photographs appears in the drawings as a spatial protagonist, positioned precisely where the plan opens up.

Why This Project Matters

Melbourne's terrace house renovation industry has produced extraordinary work, but it has also normalized a formula: gut the back, add a glass box, claim the yard. The Pergola Extension by Krisna Cheung Architects sidesteps that formula by doing almost nothing in terms of added footprint, yet achieving a comparable spatial transformation through plan reconfiguration and material continuity. Three square meters of new floor area is a rebuke to the idea that impact requires size. The project argues that the most meaningful architectural intervention is sometimes a change in topology, connecting what was separated, rather than a change in volume.

There is also something worth noting in the project's relationship to its own history. This is not a single renovation but the second chapter of an ongoing conversation between architect and house. The 1990s staircase, the Studio Garage Façade, and now the pergola form a layered record of inhabitation and design. In a culture that treats renovation as a one-time event, that continuity is both rare and instructive. Houses are not finished objects. They are arguments that develop over time, and this one is making a compelling case.

Pergola Extension by Krisna Cheung Architects, North Melbourne, Australia. 3 m². Completed 2021. Photography by Derek Swalwell.

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