A Sustainable House Extension in Kensal Rise
Some homes ask for expansion. Others ask for clarity.
Rose Canopy House asked for both.
This project began with a simple question → what happens when you extend a London terrace without overwhelming it? When you balance the desire for more space with the responsibility to lift performance, reduce energy demand and strengthen the building for decades ahead?
The answer is this: a sustainable house extension in Kensal Rise that treats space as an asset, daylight as a material, and sustainability as the structural backbone of every decision.
☉ A home enlarged with purpose, not pressure.
The garden elevation of Rose Canopy House, defined by the rose canopy and its angled fins that filter sunlight, cool the interior and cast shifting shadows across the day.
Rather than stretching the footprint to its maximum, we explored a single-storey side and partial rear extension that creates a 230m2, five-bedroom home while still giving the garden room to breathe.
Inside, the layout becomes a composition of spaces that support family life:
Five well-proportioned bedrooms
Two bathrooms, one WC and an additional shower room
A connected kitchen-dining-living space
A dedicated utility room tucked quietly out of circulation
The ambition wasn’t size. It was flow → removing friction, improving comfort, and shaping a home that works intuitively from morning to night.
Inside the extension, rooflights, deep reveals and high-performance glazing bring in soft, balanced daylight, creating a calm and energy-efficient family space.
At the heart of the extension sits the rose canopy - the project’s namesake and its environmental engine.
Its sculpted form, supported by a series of slender fins, is tuned to the sun’s path. Each fin is angled to welcome the softer morning light, filter harsher midday sun, and cast long, cool shadows in late afternoon. Through the seasons, it becomes a passive regulator, allowing winter sunlight to reach deep into the home while protecting the interior from summer overheating.
On the dining table below, the shadows shift like a slow sundial.
On the walls, the filtered beams reveal the texture of the materials.
Across the garden threshold, the canopy acts as a quiet hinge between inside and out.
This is what sustainable design looks like when it becomes lived experience → not a checklist, but a rhythm.
Aerial view of Rose Canopy House showing the sculpted rose canopy, sun-responsive fins and rooflights that shape daylight and comfort throughout the extension.
Rose Canopy House is grounded in a deep retrofit strategy shaped by AECB principles. Performance is not an accessory here; it’s the foundation.
Key elements include:
The building is wrapped in a carefully considered skin of high-performance insulation, cutting heat loss dramatically and reducing reliance on mechanical heating.
Every joint, every junction, every edge is detailed with care. Better airtightness means fewer draughts, more stable temperatures, and significantly lower energy use.
Improved glazing strengthens the thermal envelope, enhances daylight, and anchors the connection between home and garden.
Clean, filtered air circulates quietly through the home, improving air quality and maintaining comfortable temperatures year-round.
A future-proof, low-carbon heating system that integrates seamlessly with the upgraded building fabric.
Together, these measures shift the home toward a far lower operational footprint while transforming comfort levels in every room.
The refurbished stair and bathroom zone, lit from above by a new lightwell that improves ventilation, daylight and spatial clarity as part of the AECB retrofit strategy.
A sustainable house extension in Kensal Rise isn’t just about efficiency - it’s about atmosphere.
The new rooflights draw daylight deep into the plan. Angled reveals, thickened walls and timber structure help shape soft transitions between light and shadow.
The result is a home that feels open yet grounded, bright yet calm - a space where daylight isn’t merely admitted but choreographed.
At RISE, we design for longevity. For families who want homes that evolve, not expire.
Rose Canopy House reflects that mindset: a project where sustainability, craft and clarity come together to reshape a Victorian terrace for modern life.
This isn’t an extension that shouts.
It’s one that endures - quietly, confidently, purposefully.
At RISE, we believe that a sustainable house extension in Kensal Rise is never just an upgrade. It’s an act of stewardship - shaping a home that performs beautifully, enriches daily life, and leaves the building better than we found it. A home that stands as part of the neighbourhood’s future, not its past.
Rose Canopy House reflects that belief. A quieter kind of ambition. A design that lifts comfort, cuts energy demand, and invites nature back into the rhythm of the home. Confident enough to evolve the existing fabric, humble enough to sit lightly within it.
Thinking about a sustainable house extension or deep retrofit?
Let’s explore how your home could be transformed with purpose - and start giving back more than it consumes.
→ Email us at architects@risedesignstudio.co.uk
→ Or call the studio on 020 3947 5886
RISE Design Studio, Architects, Interior Designers + Sustainability Experts
☉ Architecture for people and planet
☉ Trading since 2011
☉ Company reg no: 08129708
☉ VAT no: GB158316403