For our latest roundup, we've collected seven dormer extensions, from a design that takes cues from Italian palazzos and paintings to an extension clad in recycled plastic tiles designed to look like slate. More about Seven British dormer extensions that take design to another level
Recycled plastic tiles that mimic natural slate cloak a dormer extension at this terraced home in London, which has been updated and expanded by local practice YN Studio. More about YN Studio extends London home around light-filled stairwell
A timber-framed glazed link and courtyard garden connect old and new parts of this home in Northwood, UK, which architecture studio Will Gamble Architects designed to reference traditional Sri Lankan houses. More about Will Gamble Architects adds "explicitly tropical" extension to Grade-II listed English cottage
Local studio Formwork Architects has transformed a derelict care home in Crouch End, north London, back into a family dwelling, introducing a two-storey brick extension overlooking a sunken patio. More about Formwork Architects transforms abandoned care home into light-filled Crouch End House
Architecture studio Sthapati took visual cues from local palaces and gateways for its expansion of the Jodhpur Airport in Rajasthan, India. More about Sthapati "draws from Jodhpur's royal past" for pastel-coloured airport
Architecture studios Carlo Ratti Associati and Park Associati are set to overhaul the Spedali Civili hospital in Brescia, Italy, with the addition of a three-pronged wing surrounded by a one-kilometre-long park. More about Carlo Ratti and Park Associati to surround children's hospital in one-kilometre "green ring"
Local studio Stylus Architects has completed Green Lodge, a partially submerged family home in Roehampton Village, southwest London, where a series of sunken lightwells brings daylight into rooms set below ground. More about Sunken lightwells illuminate partially submerged London home by Stylus Architects
Architecture studio Anna and Eugeni Bach has renovated and extended a holiday home in the medieval village of Fonolleres, Spain, adding a series of porches, pergolas, and terraces to bring daily living outdoors. More about Anna and Eugeni Bach extends Fonolleres House with porches and pergolas
Architecture studio Robert AM Stern Architects has completed an extension to the New York Historical museum in New York informed by the building's original design from the early 1900s. More about RAMSA completes sensitive extension of New York Historical museum
Australian studio MRTN Architects has completed Laneway House in Melbourne, extending a Victorian terrace with a "collage" of forms in red-toned brick, metal and timber. More about MRTN Architects extends Melbourne home with cluster of red-brick volumes
Architecture studio Herzog & de Meuron has transformed the industrial structure of the Titlis Tower in the Swiss Alps into a sculptural tourist destination with dramatic cantilevers and a panoramic viewpoint. More about Herzog & de Meuron transforms mountain antenna tower into "iconic sculpture"
Swiss architecture studio Herzog & de Meuron has revealed plans to update the Palace of Congresses concert venue in Tirana, Albania, with a 260-metre-tall skyscraper. More about Herzog & de Meuron to revitalise communist-era Palace of Congresses in Tirana
Brooklyn-based studio Out of Line has completed an attached accessory dwelling unit that extends a New Jersey suburban home by extending its colours and creating a gable form in the negative for the entryway. More about Out of Line adds playful ADU with "absent gable" to New Jersey house
A fluted wall wraps the curved exterior of this extension to the Maggie's centre at Cheltenham General Hospital, added as part of an overhaul by London studio Metropolitan Workshop. More about Metropolitan Workshop adds lozenge-shaped community space to Maggie's Cheltenham
Slender granite columns frame the glazed walls of this compact extension to a home in Dublin, completed by local studio Scullion Architects. More about Scullion Architects brings "romantic sensitivity" to elevated extension in Dublin
UK practice Studio Hallett Ike has completed the renovation and extension of a gothic-style lodge in the grounds of a London cemetery. More about Studio Hallett Ike updates and extends Victorian lodge in the grounds of a London cemetery
Architecture studio Rever & Drage has expanded a cluster of rural buildings in Norway, adding a barn-like form that steps up a sloping, rocky site. More about Rever & Drage extends smallholding in Norway with stepped barn-like volume
Local studio ODDO Architects has extended TH+ House in Vietnam, organising a series of shared, flexible spaces around tall voids informed by the "social intensity" of Hanoi's urban alleyways. More about ODDO Architects looks to urban alleyways for narrow extension in Vietnam
Local studio GS Architecture has completed its renovation and extension of a family home in Hampstead Heath, London, updating it to meet low-energy Passivhaus standards. More about GS Architecture retrofits Hampstead Passive House with "fabric-first approach"
Arizona-based studio Benjamin Hall Design completed an addition to a Phoenix house that hides in the landscaping to create a treehouse-like effect. More about Benjamin Hall expands Phoenix home with treehouse-like addition