RIBA Journal in partnership with VELUX

Daylight from Above Awards

The 2025 Daylight from Above Awards invited entries to showcase the best and most effective naturally top lit architecture through two categories.

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For the 2025 Awards, judges considered entries in two categories. Light, Space and Atmosphere rewards new or adapted residential projects that incorporate any VELUX sloped or flat roof window. The Heritage Conservation category invited entries for any historic and heritage buildings that use products from new VELUX Heritage conservation roof window range.

Choose a category below to see winners and commendations for the awards.

Light, Space and Atmosphere

This category recognised residential projects where daylight design played a decisive role in transforming domestic spaces. Judges were looking for the skilful use of daylight from above to enrich both the architecture of a building and the lives of its occupants. Eligible entries included new-builds and conversions completed in the last three years in the UK, each incorporating VELUX sloped or flat roof windows as part of a considered daylighting strategy.

Assessment focused on how natural light was introduced with both imagination and rigour. This included the use of daylight to enhance comfort through thoughtful illumination and the management of contrast, glare and shadows. Projects were also evaluated for their sensitivity to orientation and light direction over time, how interior spaces registered the presence and quality of light, and how natural light impacted energy use and solar gain.

Many shortlisted projects used daylight from above to unlock deep or constrained spaces, often featuring central pyramidal or funnel-like roof windows that dramatically shaped the experience of the interior. Judges praised entries where top-lighting not only improved spatial quality but also supported wellbeing - such as in therapeutic settings - or where it addressed both aesthetic and functional challenges, like privacy, ambience, or energy efficiency.

Winner of Light, Space and Atmosphere category

Casa Bassa, by Francesco Pierazzi Architects

There was a clear winner in the Light, Space and Atmosphere category - Casa Bassa, designed by Francesco Pierazzi Architects - which impressed every one of the judges and was, as Botsford said, "all about the light".

"Of all of the entries, this one best used light as a material." So said judge Gianni Botsford of Casa Bassa, one of the winners of the 2025 Daylight from Above Awards, organised by VELUX in partnership with the RIBA Journal. 

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About Casa Bassa

Situated on the outskirts of Guildford, Surrey, with a direct view of the North Downs on the horizon, CASA BASSA is a small house built on the footprint of a previously nondescript garage. The design aims to redefine a typology by combining multiple dwelling types, creating a hybrid house that can adapt to various uses and layouts. The new structure was envisioned as a versatile space, providing a space for the clients’ daughters, an office, a gym, and guest accommodations, ancillary to the main house, a modern villa.

Loosely inspired by concepts derived from artificial intelligence - the owners’ field of expertise - the design interprets AI algorithms translating code into binary patterns of 0s and 1s. This concept informs the architectural language, with a vertical binary rhythm shaping the choice of technical solutions, materials, and finishes. Timber goalpost frames, zinc cladding, charred timber, battens, and porcelain tiles are meticulously arranged to reflect binary patterns of seam and field, solid and void, gap and slat, ridge and valley.

The resulting composition is a richly textured surface where light and shadow interact dynamically, accentuating the nuanced interplay of materials. This carefully orchestrated “wrinkled” canvas captures and reflects natural light, creating a harmony of contrasts and gradients that highlights the rugged sophistication of the design.

While the exterior of Casa Bassa is dark and monolithic, the interior offers a striking contrast - bright, monochrome, and flooded with natural light. The design intentionally explores an aesthetic where the extremes of the light spectrum serve as key architectural tools. The loft-like open space engages directly with the outdoors and the distant hills through expansive picture windows, fostering a seamless connection between interior and landscape. Visitors are met with a deliberate sense of surprise as they enter through a small, concealed door and ascend a dynamic, funnel-like and top-lit stairwell, transitioning from a feeling of enclosure to one of openness and light-filled expansiveness.

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Casa Bassa, by Francesco Pierazzi Architects
Photography: Gianluca Maver

Commendation

Discovered House, by Robert Dye Architects

Judges liked the way the light was handled in this retrofit and rear extension to a Victorian semi-detached house in Islington, north London.

Robert Dye Architects opened up the rear of the building by removing previous leaky extensions to rediscover the original house. A new extension was then added across the back to create a light-filled kitchen and living space with improved connection to the garden.

VELUX roof windows are used to bring dynamic light into the extended house. Over the ground floor shower room, the toplight is combined with coloured panels on the internal face to bounce a warm glow into the space. Another, used in a horizontal format on the second floor, frames a panoramic view of tree foliage.

In the kitchen, the timber-framed extension is delineated from the original house by what the architects describe as a ‘glass moat’ skylight. This T-shaped slot brings natural daylight including an hour of sunlight onto the ‘discovered’ part-exposed brick and lime-rendered corner of the original villa.

Judges praised the variety of ways used to bring light in, combined with different materials, and especially liked the use of the glass moat to separate the new from the existing house.

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Commendation

House in a Barn, by Artel 31

Designed by Artel 31, House in a Barn creates a fully breathable timber-framed home within the steel portal frame of the original structure, from which materials have been salvaged as part of the cladding. The result preserves the barn’s character, incorporating the new-build accommodation and sheltered adjacent amenities outside the home’s thermal environment.

The architects used Passivhaus software, natural light modelling, and wind studies to determine window sizes and orientations, so as to allow natural light penetration and optimise climate resilience.

VELUX roof windows light the master suite (where the old barn roof was removed) and the first-floor core below the existing rooflight in the original barn roof. As well as providing ventilation and light, the electric VELUX windows have smart closers and blinds for inhabitants’ safety and comfort. 

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Jury
Daylight from Above Awards

Deniz Beck
Conservation architect, founder of Deniz Beck Partners and the Sustainable Conservation Trust

Gianni Botsford
Director and head of design at Gianni Botsford Architects

Percy Weston
Architect and co-founder of Surman Weston

Richard Williams
Senior architectural development manager at VELUX

Chris Foges
Contributing editor, RIBAJ (chair)

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