No.1 Grosvenor Square's newly revealed apartments perfect for entertaining
A team of expert architects and designers breathe new life into No.1 Grosvenor Square, the prestigious London address by developers Lodha UK

Billy Bolton - Photography
No.1 Grosvenor Square is one of London's most recognisable addresses – formerly the home to the American Embassy in London and neighbour to the later US embassy home by modernist architect Eero Saarinen at 24 Grosvenor Square. Now the prestigious historic London building at No.1 Grosvenor Square is being reinvented as residential, with Eric Parry Archtiects overseeing the architecture and more design work unfolding inside by globally acclaimed firms. The transformation includes this newly revealed apartment interior design by developer Lodha UK's expert design team.
The building's past life was a huge inspiration to Blandine de Navacelle, Lodha UK’s creative director, who oversaw the works. ‘In its past life as an embassy, the building would have hosted many a party and evening soirée,' she says. ‘Grosvenor Square has also long been the centre of London’s social set; Oscar Wilde used to live on the square and was infamous for his parties. I wanted Residence 4.3 to nod to this, and to create the perfect place to entertain. The apartment, in terms of proportion and layout is a tribute the 18th century European lifestyle, where people wanted to host big parties and display their art collection.'
Creating a space that is perfect for receiving guests was important; as was design personality and comfort. ‘I didn’t want the apartment to feel like a hotel,' continues de Navacelle. ‘It needed to have the same luxurious finish, but I wanted it to be warmer and brighter, with more personality – and feel like a home. You can see this in the way colour is used throughout the apartment – we really experimented with patterns and palettes in each room and I think the effect is really warm and enveloping.'
There is colourful hand-painted wallpaper in the dining room by Fromental; an antique French art deco side console in the dining room; and bespoke displays by Marcus Wells of Haviland Designs, which all speak to that individualised approach. It was also key to ensure that spaces feel generous, and to balance intimate areas (such as a home study) and grander indoor and outdoor rooms, geared towards entertaining. Feature elements add fun twists and a unique identity to the whole. ‘I personally designed the huge brass convex disc in the hallway. This took months to design and was eventually crafted in Italy by a specialist. The idea was to play with light and reflection as you travel down that long corridor and into the living room,' says de Navacelle.
Photography: Mark Hazeldine
The restoration of the structure involved similarly careful orchestration. The architects oversaw the delicate dismantling of the neo-Georgian façade, which was then painstakingly reconstructed brick by brick, in order to enable new ceiling heights and all the mod-cons a contemporary residence needs inside. Meanwhile, international design firm Yabu Pushelberg created concepts for more apartment options on site.
‘No.1 Grosvenor Square is an unrivalled set of residences on London’s finest garden square. Our work has been to completely modernise this building, replacing it with a contemporary construction that transforms its former diplomatic function to create an accessible component of the urban fabric,' says architect Eric Parry.
INFORMATION
1gsq.com; ericparryarchitects.co.uk; lodhagroup.co.uk; yabupushelberg.com
Receive our daily digest of inspiration, escapism and design stories from around the world direct to your inbox.
Ellie Stathaki is the Architecture & Environment Director at Wallpaper*. She trained as an architect at the Aristotle University of Thessaloniki in Greece and studied architectural history at the Bartlett in London. Now an established journalist, she has been a member of the Wallpaper* team since 2006, visiting buildings across the globe and interviewing leading architects such as Tadao Ando and Rem Koolhaas. Ellie has also taken part in judging panels, moderated events, curated shows and contributed in books, such as The Contemporary House (Thames & Hudson, 2018), Glenn Sestig Architecture Diary (2020) and House London (2022).
-
Yannick Alléno takes over Monsieur Dior: ‘What would Christian Dior do if he were to create a restaurant today?’
At 30 Montaigne in Paris, the world’s most Michelin-starred chef reimagines French gastronomy as Christian Dior himself might have dreamt it
-
Oscar Ouyang’s imaginative knitwear makes him a London Fashion Week name to watch
The Guangdong-born designer, who recently graduated from Central Saint Martins, will hold his first runway show at LFW tomorrow. As part of our Uprising column, Wallpaper* gets a preview of the collection
-
The new Nothing Ear (3) are fine-sounding earbuds with added audio functionality
Nothing’s latest upgrade brings the Super Mic to its earbud range, enhancing call quality and creating a handy voice memo taker
-
A Cornish coastal home that flows like the tide and landscape
On the north coast of Cornwall, De Rosee Sa design a retreat shaped by surfing, sea views and natural materials, offering its owners a life of comfort and calm
-
In memoriam: Sir Nicholas Grimshaw, 1939-2025
Pioneering British architect Sir Nicholas Grimshaw has died at the age of 85; we honour the creative who marked 20th-century architecture like few others
-
The new 2025 London Open House Festival tours to book
2025 London Open House launches this weekend, running 13-21 September; here, we celebrate the newcomers in the residential realm, flagging the exciting additions to the festival's growing home tour programme
-
The wait is over – the RIBA Stirling Prize 2025 shortlist is here
The restored home of Big Ben, creative housing for different needs, and a centre for medical innovation – the RIBA Stirling Prize 2025 shortlist has just been announced, and its six entries are as diverse as they can be
-
Slides, clouds and a box of presents: it’s the Dulwich Picture Gallery’s quirky new pavilion
At the Dulwich Picture Gallery in south London, ArtPlay Pavilion by Carmody Groarke and a rich Sculpture Garden open, fusing culture and fun for young audiences
-
Bay House brings restrained modern forms and low-energy design to the Devon coast
A house with heart, McLean Quinlan’s Bay House is a sizeable seaside property that works with the landscape to mitigate impact and maximise views of the sea
-
A whopping 92% of this slick London office fit-out came from reused materials
Could PLP Architecture's new workspace provide a new model for circularity?
-
Meet the landscape studio reviving the eco-brutalist Barbican Conservatory
London-based Harris Bugg Studio is working on refreshing the Barbican Conservatory as part of the brutalist icon's ongoing renewal; we meet the landscape designers to find out more