The roof of this Stockholm house by Streetmonkey Architects turns into a ramp for children to sled on when it snows (+ slideshow). More about Pulkabacken house has a sloping roof that doubles as a sledding hill
UK studio London Atelier has updated the interior of a dilapidated terraced property, adding a new staircase, and a folding ladder for access to the roof (+ slideshow). More about London Atelier reorganises Victorian house to create multi-level apartment
Two house-shaped rooms project out from the facade of this three-storey residence by SoNo Arhitekti, which nestles into a hillside near an Austrian Alpine village (+ slideshow). More about Mountain View House nestles against a hillside in the Austrian Alps
The trio of stacked blocks that make up this Virginia residence by Höweler + Yoon Architecture are arranged in a bridge-like formation, providing three generations of a family with separate living spaces (+ slideshow). More about Höweler + Yoon's Bridge House accommodates three generations of a family
A concrete basin constructed inside this small apartment in Venice is designed to fend off flooding from the city's waterways. More about Act_Romegialli damp-proofs a Venetian home against the rising tides of the city's waterways
Prefabricated modules of cross-laminated timber were "plugged in like Lego pieces" to build this eight-storey apartment block in Finland – one of the first examples of its type in the world (+ slideshow). More about OOPEAA completes Finland's first high-rise wooden apartment building
This collection of angular asphalt-clad roof extensions provide elevated sleeping platforms, a study and a pair of funnel-shaped skylights for a home in eastern Denmark. More about Asphalt-clad roof pods by Leth & Gori create new rooms on top of a Danish bungalow
Belgian studio De Meester Vliegen Architecten overhauled an apartment at the top of a building in Antwerp to create a penthouse that also functions as a private office (+ slideshow). More about Monolithic marble partition perches on top of a steel fireplace in Antwerp penthouse
This timber-clad villa by Stockholm studio The Common Office stands between the trees of a steep rocky slope in the Swedish countryside (+ slideshow). More about Villa Altona by The Common Office fits around the trees of a Swedish woodland hill
A concrete floor merges with seating inside and outside this rusted steel and glass extension to a Victorian-style house in west London, designed by local architecture studio McLaren Excell (+ slideshow). More about McLaren Excell adds a weathered-steel and concrete extension to a London house
The living and dining rooms of this house overlooking a river valley in Connecticut, USA, are contained in a timber-clad box raised up by concrete buttresses (+ slideshow). More about Bridge House by Joeb Moore & Partners straddles a site on the edge of a valley
Architecture studio Cadaval & Solà-Morales has transformed a traditional white brick house in Mexico City into an apartment complex, with the addition of a row of black penthouses (+ slideshow). More about Cadaval & Solà-Morales installs angular black penthouses during renovation of a 1920s building
A pair of glass doors, weighing almost four tonnes and measuring six metres in height, pivot out towards the garden of this renovated Antwerp home. More about Sculp IT adds "world's largest pivoting window" to an Antwerp townhouse
The buildings of this California housing community were designed by Leddy Maytum Stacy Architects to suit the domestic and social needs of adults with autism – the fastest growing developmental disability in the US (+ slideshow). More about California housing by Leddy Maytum Stacy addresses the needs of residents with autism
Vietnamese studio MM++ Architects stripped a house back to its concrete frame to create this pared-back open-plan villa featuring red brick walls, pivoting glass doors and leafy gardens (+ slideshow). More about MM++ Architects replaces the old walls of a Vietnam house with red bricks and pivoting glass
Portuguese architect Manuel Aires Mateus renovated and extended the ground floor of an 18th-century townhouse to create this Lisbon home (+ slideshow). More about Manuel Aires Mateus reworks the interior of an 18th-century Lisbon townhouse
This beach house by Ruhl Walker Architects is raised above the landscape, helping it to have a minimal impact on the fragile coastal ecosystem of its Cape Cod setting (+ slideshow). More about Beach house by Ruhl Walker Architects designed to "curve and shift" with the landscape
The tiled roof of this residence in Switzerland has been raised by one metre to provide extra height for the newly renovated spaces within. More about Studio Inches raises the roof of a Swiss home to create a lofty living space
A trio of overlapping buildings all pointed in different directions make up this house in South Korea, designed by Engineforce Architects to accommodate a family of three (+ slideshow). More about Every occupant has their own domain in South Korean home by Engineforce Architects
Angular balconies and timber panelling characterise these housing developments by architects Zaha Hadid and Daniel Libeskind, both located in Milan's fast-growing City Life district (+ slideshow). More about Zaha Hadid and Daniel Libeskind build a community of 650 homes in Milan