Archello Awards 2026 · Enter your projects before 30 September 2026
Archello Awards 2026 · Enter your projects before 30 September 2026

Roof extension

An overview of projects, products and exclusive articles about roof extension

Proyecto • By Ciarcelluti Mathers Architecture • Casas Privadas

Soft-Spoken House

 Victorian Loft Conversion and Family Home Retrofit, Hackney This project reconfigures a Victorian terraced house in Hackney, through a compact loft extension and a fabric-first retrofit. Rather than increasing the footprint, the design focuses on improving spatial clarity, thermal performance, and the overall quality of everyday living. The result is a home that feels calm, well-balanced, and quietly efficient. Brotherton-Lock Over time, the house had become fragmented and difficult to use. Bedrooms were distributed across different floors, the bathroom was undersized, storage was limited, and environmental performance was poor, with rooms prone to overheating in summer and heat loss in winter. Previous attempts to improve the... Más

Proyecto • By elua® • Casas Privadas

Sport d’hiver

Designing the vertical roof extension of a Bordeaux échoppe as a new layer. Like a mountain, the stone of the house dreams of scale, geology, and mineral strata. The program calls for an additional large bedroom, followed by a walk-in closet and a bathroom. The studio proposes an extension over half of the roof, cut to the right of the front door in order to contain the program within the private, night-time area of the house. The extension becomes the mineral continuation of the échoppe, a stone outgrowth, like a new tectonic movement of the geological plates that compose it. This new layer defines a fresh elevation, evoking the childlike silhouette of a small mountain while also referencing, through its metal roof profile,... Más

Proyecto • By ALEXANDRE BERNIER ARCHITECTE • Apartamentos

RJM apartment

A century-old duplex in Montreal's Mile-end, abandoned for several years, has been extended with a large rooftop apartment and a backyard bedroom wing on each floor. The project aims to answer the delicate and sensitive question of “architectural intervention on modest heritage. ". How to densify in a gentle way by adding new housing, while retaining the authenticity of the original design and the urban landscape of the street and the lane. How to achieve this in a dialogue between the existing and the new, without one speaking louder than the other, while maintaining the modesty that forms a district of the city. Raphael Thibodeau Raphael Thibodeau Raphael Thibodeau The answer for the project was to lay a white veil o... Más

Proyecto • By LACROIX CHESSEX • Alojamiento

051_SUR Roof extention rue de Lausanne, Geneva

This roof extension project located on the outskirts of the city of Geneva provides for the addition of three floors to the existing building dating from the 1960s. The result is the construction of fifty new apartments with views over the lake. Olivier di Giambattista Olivier di Giambattista The project is based on an analysis of the existing structure, which revealed a high load reserve, making it possible to envisage a heavy, reinforced concrete roof extension. This large beam construction allows for the consolidation of the six existing buildings in terms of seismic risks by compressing their structure (as in pre-stressed structures) and by horizontally connecting them. Olivier di Giambattista Olivier di Giambattista... Más

Proyecto • By Dietrich Untertrifaller • Oficinas

DU Office Flachgasse – Apartments

The former factory of metal objects Grünwald, built in 1907, was first transformed into a designer furniture store by Matthäus Jiszda in 1981. The building was once again restructured to house the offices of the Viennese branch of Dietrich | Untertrifaller. It has also been enhanced by two floors to offer a penthouse and two spacious apartments. Bruno Klomfar Bruno Klomfar The alignment recess is due to the load distribution of the cross-laminated beam-to-wall structure. The plan of the apartments adapts to these structural constraints and takes advantage of them: the supports on the central supporting wall and on the existing dividing walls allow clearing free levels as well as large windows on all the west facade of t... Más

Proyecto • By Pool Leber Architekten • Apartamentos

Roof extension Maxvorstadt_R11

R11 is a roof extension to a four storey building in the Munich inner city near the central station.The foundations of the existing 1980s building had limited carrying capacity and did not allow for a simple extension of this size. Instead, it was first necessary to demolish the reinforced concrete structure on the fourth floor before extending upwards with a more lightweight construction. The new structure of massive timber, clad in steel encloses two new floors and a mezzanine gallery. In total, three separate living units have been created. The interior space is designed as a flowing sculpture binding all functions together in a series of interlocking interior and exterior spaces. The upper floors are connected by an east-west galle... Más

Proyecto • By Satish Jassal Architects • Alojamiento

Kensington & Chelsea Roof Extension

A new floor and terrace within Kensington and Chelsea Satish Jassal Architects were approached to remodel an existing roof space in Kensington and Chelsea’s Colville conservation area. Steep roof slopes and a small existing terrace compromised the existing roof space. Our solution was to cut back some of the existing roofs to create a more useable roof terrace and to capitalise on the impressive views of London. We did this by introducing and anodised aluminium frontage with L shaped glazing to bring light down into the lower living areas. Two modern dormer windows were inserted to the rear to increase the internal headroom and create a bedroom and ensuite. A view study at street level was carried out demonstrating... Más

Proyecto • By Mustard Architects • Casas Privadas

The Curated Home

The Curated Home embraces the ordinary language of the Victorian vernacular and contemporary design to create an extra-ordinary home for our clients, their children and their home run business in Balham, South London. The architecture and interior design are concerned with the domestic to create opportunities for the display of carefully chosen, much loved possessions and items for sale. Although functional, our clients wanted to address the low levels of natural light and restricted space in their existing home to allow for family social living, larger gatherings and to accommodate an expanding home run business.Practical space and open plan design don’t always go hand in hand but by combining the existing vernacular with modern desig... Más