Marble bathrooms and simple furnishings complement period mouldings and restored wooden floorboards inside this waterfront Lisbon apartment recently renovated by local office Rar.Studio (+ slideshow). More about Rar.Studio adds marble bathrooms in renovation of 19th-century Lisbon apartment
Anne Rolland Architecte has transformed a ground-floor space in a 17th-century Parisian townhouse into a studio apartment with a secret underground room. More about Studio apartment in Paris by Anne Rolland Architecte has a hidden converted slurry pit
A copper-clad box for storing, exhibiting and selling paintings will stand in the centre of this Hong Kong apartment, designed by Penda for one of China's biggest art collectors (+ slideshow). More about Penda designs copper "suitcase" to store paintings for Hong Kong art collector
A curved wooden staircase connects the two floors of this penthouse apartment in Brussels, which architecture office B-ILD converted from two flats (+ slideshow). More about B-ILD combines two apartments in Brussels to create live-work penthouse
Chinese architects Lee Chul and Liu Jing punched through the partitions of this small Beijing apartment to create a more open-plan layout with only one door (+ slideshow). More about Lee Chul and Liu Jing knock through walls to open up spaces in a Beijing apartment
Design Haus Liberty has converted a building with an triangular footprint in London's Shoreditch into rental apartments that fold around awkwardly shaped internal walls (+ slideshow). More about Design Haus Liberty squeezes three flats into angular period property in east London
Paris studio Atelier 37.2 has added a multifaceted wooden volume to an apartment in the French capital to house two shower rooms. More about Atelier 37.2 installs sculptural wooden bathroom inside Haussmann-era apartment
Hungarian firm Position Collective has renovated a Budapest studio flat, designing a furniture and storage system that caters for temporary occupants booking via Airbnb (+ slideshow). More about Position Collective tailors Budapest apartment towards Airbnb guests
Architects Anna and Eugeni Bach have suspended a desk from the ceiling of this renovated Barcelona apartment so residents can use its mezzanine level as a study (+ slideshow). More about Desk hangs from ceiling of Barcelona apartment by Anna and Eugeni Bach
A wooden bridge-like corridor connects a master bedroom to a walk-in wardrobe on the mezzanine level of this apartment in the Taiwanese city of Kaohsiung (+ slideshow). More about Taiwan apartment renovation by Hao Design includes a new floor with house-shaped doors
London studio Emrys Architects has converted a pair of warehouses in London's Covent Garden into apartments, including a pair of penthouses slotted underneath the original pitched roof (+ slideshow). More about Emrys Architects creates six homes in converted Covent Garden warehouses
Cairos Architecture has converted the attic of an old Parisian apartment into children's bedrooms, making the property more suitable for use as a family home (+ slideshow). More about Cairos Architecture uses mezzanine level to create more room inside Paris apartment
Contemporary oak cabinetry features alongside original patterned tiles in this 19th-century Barcelona apartment recently renovated by local studio Built Architecture. More about Built Architecture uses oak cabinetry to reorganise a mosaic-floored Barcelona apartment
A brown cashmere coat, a pair of sand-coloured shoes and a piazza in Rome influenced Note Design Studio's renovation of this 1930s loft apartment in Sweden. More about Note Design Studio rejects white in renovated Stockholm apartment
Polish studio Loft Szczecin has renovated a summer apartment in the suburbs of Berlin, pairing original brick walls and ceilings with mid-century furniture (+ slideshow). More about Loft Szczecin fills Berlin summer apartment with Polish materials and furniture
Belgian architects Edouard Brunet and François Martens have converted a terraced house in Brussels into two apartments, adding a projecting box with a full-height glass wall to house a new kitchen (+ slideshow). More about Kitchen extension projects from the top floor of a renovated Brussels house
Ukrainian designer Olga Akulova added glazed partitions, metal-topped counters and a wooden bath to this apartment on the 30th level of a condominium in Kyiv. More about Olga Akulova installs glass walls and monolithic fireplace within Kyiv penthouse
Standard Studio has created a home for a family inside a former teachers' lounge – part of a wider conversion project by Casa Architecten that turned an early-20th-century school in Amsterdam into a series of apartments (+ slideshow). More about School teachers' lounge transformed into contemporary loft apartment by Standard Studio
Munich architecture studio IFUB has overhauled a 1930s apartment in Vienna, uncovering original details like parquet flooring and adding contemporary lighting and black steel fittings (+ slideshow). More about IFUB installs bespoke black steel fittings in 1930s Art Deco apartment renovation
Materials uncovered during the renovation of this early-20th-century apartment in Montreal have been used to add texture to the space and create visual boundaries between each room. More about Anne Sophie Goneau exposes brickwork within Montreal apartment renovation