In the tightly woven fabric of Singapore’s Novena district, where neighbouring houses press close together in the single-minded pursuit of maximising land use, Wallflower Architecture + Design has conjured something rather refreshing and unexpected – a home that exudes tropical languor while maintaining a smart modern silhouette.

Founded in 1999 by Robin Tan and Cecil Chee, the studio has made a name for itself crafting nuanced solutions to spatial challenges, with their work regularly featured in glossy magazines. In the Open Courtyard House, a 8,700-square-foot residence built on an 8,400-square-foot site, the duo’s philosophy becomes particularly clear: “The essence of design distils virtue out of necessity”.

The brief from the client – a family of five – was a home that felt simultaneously open yet private, modern yet warm. A key requirement was a central courtyard with a pool at the heart of the house, alongside a prominent staircase and lift core positioned in such a way that it would glow like a lantern at night. Most unusually, the family was adamant in rejecting the typical flat roof in favour of pitched volumes, a preference that would prove more complicated than it initially appeared.

In Singapore’s tightly regulated building environment, pitched roofs consume valuable height allowance that flatter roofs preserve, making it harder to fit in all the spaces a quotidian family might actually need. Robin Tan’s solution was both elegant and pragmatic: dig down. By introducing a full basement level, he could accommodate the family’s spatial requirements while respecting regulatory height constraints. 

Resting on soft marine clay, which provided its own engineering challenges, the basement isn’t a typical subterranean afterthought, though. Aided by strategically placed volumes and openings, it redefines what lower-level living can be as it reads like a naturally lit and ventilated entertainment space that feels more like a garden pavilion than an underground room.

Upstairs, the home’s geometry unfolds, concertina-like, as two elongated pitched-roof volumes arranged in a U-shape, embracing an internal courtyard that serves as both heart and lungs of the residence. This central void, anchored by a serene pool and garden, channels the contemplative spatial language of Geoffrey Bawa’s Ena de Silva House, where light and shadow play through deeply recessed eaves to create unexpected openness despite the site’s cramped surroundings.

Materials also tell their own story here. The marriage of timber and travertine – a pairing beloved by the clients – creates tactile and visual warmth throughout. Teak timber screens serve dual purposes, providing solar protection and privacy while maintaining visual connection to the neighbourhood. To that end, the travertine forms what Tan describes as an elevated piano nobile, lifting the main living spaces just above road level to enhance both privacy and views.

The house contains five bedrooms, a ground-floor study facing the pool, and that remarkable basement entertainment space. Even the service areas enjoy natural light, a detail that quietly telegraphs Wallflower’s commitment to making every corner of the house feel considered.

Perhaps nowhere is the home’s tropical character more evident than in Tan’s favourite space – the living room. When the sliding glass panels retract completely into the walls, the boundary between interior and exterior dissolves entirely, transforming the space into what he describes as an open deck that captures the essence of tropical indoor-outdoor living with a reduced need for artificial cooling.

Beyond environmental considerations, Tan champions “lifestyle sustainability” in the sense of designing spaces that enhance daily life rather than merely ticking green boxes. In this house, cross-ventilation flows through every level, including the basement, while cavity walls and deep eaves temper solar heat gain.

If it’s not already clear, in Singapore, where land scarcity makes space the ultimate luxury, creating the perception of generosity becomes essential. In the Open Courtyard House, Tan achieves this through what he calls manipulating light to create a spatial illusion underpinned by the understanding that luxury isn’t necessarily about expensive materials but about wellbeing and the quality of daily life.

On every metric, the house is a polished showcase for how thoughtful design can transform tight urban sites into something genuinely special. Even more commendable, its quiet design prioritises longevity, recognising that creating buildings with enduring appeal should reduce the wasteful cycle of constant rebuilding that mars so much of Singapore’s architectural landscape.

Subjecting the finished project to a post-mortem, Tan feels he wouldn’t change anything – a rare emotion with architects, for whom hindsight usually reveals innumerable flaws and ‘could have beens’. Tan is permitted his moment of satisfaction, for the house succeeds simply because it gives the family exactly what they asked for while solving genuine problems along the way.

And, if nothing else, this Novena residence offers a compelling take on tropical modernism in the context of city living – one that embraces Singapore’s climatic realities while creating genuine sanctuaries of light and air that enhance the daily life of its residents. You couldn’t ask for much more, really.