Construction has begun on Steven Holl's controversial Maggie's cancer-care centre at London's St Bartholomew's Hospital, which the architect says will respect rather than mimic its historic setting. More about Construction starts on Steven Holl-designed Maggie's Centre at London's oldest hospital
Graduate shows 2015: the head of Central Saint Martins' BA Fashion course has voiced support for a guerrilla presentation staged by students who were not chosen to exhibit at the school's official press show. More about Central Saint Martins backs protest by fashion students
Architecture studio Piercy & Company has resurrected a fire-ravaged building as offices in London's Shoreditch, reinstating the ornate facade at the front and adding a faceted brass structure at the rear (+ slideshow). More about Shoreditch office by Piercy & Company has a restored facade and a golden behind
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
Belgian artist Carsten Höller has filled the Hayward Gallery and terraces on London's South Bank with interactive installations, including a pair of spiral slides (+ slideshow). More about Carsten Höller transforms London's South Bank into a playground
London Festival of Architecture 2015: Turner Prize-nominated architecture collective Assemble has teamed up with British artist Simon Terrill to create full-size foam replicas of playground designs from architecture's Brutalist era (+ slideshow). More about Assemble's Brutalist Playground is a climbable landscape of ice-cream-coloured shapes
Architect Zaha Hadid has added a range of stools and a bowl designed to resemble ice formations to her collection of furniture for London's David Gill Gallery. More about Zaha Hadid extends Liquid Glacial furniture collection
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
Strips of black-stained timber give a charred appearance to this extension to a north-west London flat, designed by Fraher Architects to create a bigger kitchen for a client who loves to cook (+ slideshow). More about Blackened timber extension by Fraher Architects provides a new kitchen for a keen cook
London Festival of Architecture 2015: London studio Systems has organised an exhibition that brings together forgotten 1960s toys including Interslot, Bird and Fish, and Marble Run (+ slideshow). More about Play exhibition presents Modernist toys at a London furniture showroom
London studio Loop.pH has created an inflatable plastic dome by London's River Thames that will be pumped full of scented vapour to create a gathering space intended to replicate the atmosphere of a traditional bathhouse (+ slideshow). More about Inflatable dome on the banks of the River Thames is filled with aromatic fog
Designer Paul Cocksedge has completed a spiral staircase featuring a garden, a library and a tea bar (+ slideshow). More about Paul Cocksedge's Living Staircase includes plants, a mini library and tea-brewing facilities
These sculptural helmets by digital art studio FIELD incorporate Oculus Rift virtual reality headsets (+ movie). More about FIELD creates sculptural virtual reality helmets for Violescence exhibition
London Festival of Architecture 2015: visitors to this London "sleeperie" can take a 10-minute nap in a colourful sling within a dimly-lit room, where soothing music is played and all technology is banned (+ slideshow). More about Hassell and Draisci Studio create "London's first sleeperie" to encourage daytime naps
London Design Festival 2015: Mexican architect Frida Escobedo has added a series of adaptable mirrored platforms to the V&A museum's central courtyard, referencing an ancient Aztec city built over a lake (+ slideshow). More about Frida Escobedo creates an Aztec-inspired installation in the V&A courtyard
Clerkenwell Design Week 2015: Danish brand Carl Hansen & Son has opened a space in London's Clerkenwell to showcase furniture by mid-century designers Hans J Wegner, Kaare Klint and Poul Kjaerholm (+ slideshow). More about Carl Hansen & Søn opens showroom in London's Clerkenwell
Clerkenwell Design Week 2015: Swiss design studio GRUPPE has installed totems of colourful building blocks on the streets of Clerkenwell during the London district's annual design festival (+ slideshow). More about GRUPPE creates pastel-coloured totems to signpost Clerkenwell Design Week
Clerkenwell Design Week 2015: Murano glass sweets provided the inspiration for this pavilion by London studio Cousins & Cousins, which features a mixture of coloured and patterned glazing (+ slideshow). More about Glaze pavilion by Cousins & Cousins designed to resemble a Venetian glass sweet
Slate-grey bricks applied in zigzagging rows give the walls of this London house extension a faceted texture that contrasts the smooth, pale yellow brickwork of the original property (+ slideshow). More about Fraher Architects includes textured brick cladding on north London house extension
London studio Haworth Tompkins has completed its £80 million refurbishment of Brutalist icon the National Theatre, including the addition of an all-new aluminium-clad theatre production facility (+ slideshow). More about Haworth Tompkins completes renovation of Denys Lasdun's National Theatre