London Festival of Architecture 2015: four architecture studios from Ireland have come together to create colourful pavilions for this year's London Festival of Architecture – a red one containing an elevated passageway and a yellow one housing a library of bricks (+ slideshow). More about Architects from Dublin and Belfast install red and yellow pavilions at London's King's Cross
Lights projected through perforated boxes illuminated a space designed by Cullen Projects to host fashion shows during London Collections: Men (+ slideshow). More about Cullen Projects builds glowing perforated boxes for London menswear shows
Thomas Heatherwick has reportedly been brought in to work on Google's new London headquarters after plans by architecture firm Allford Hall Monaghan Morris were deemed too boring. More about Google drafts in Thomas Heatherwick for delayed London HQ project
This London pavilion, designed to resemble a smattering of stars, casts reflections on a mirrored plate to operate like a giant sundial (+ slideshow). More about East London pavilion by Nonscale is designed to resemble a cluster of stars
This artists' home in Dalston has been updated with a yellow-framed kitchen extension in the back garden and a traditional glass and timber "shopfront". More about PriceGore adds a yellow-framed extension to an east-London artist's home
London Festival of Architecture 2015: wrapped around a tree trunk in east London's Hoxton Square, this translucent pod provides temporary office space intended to encourage workers into the borough's parks (+ slideshow). More about Pop-up office created around a tree trunk in London's Hoxton Square
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