1 Mayfair Residences, Grosvenor Square by Caudwell · South Audley Street, Grosvenor Square, London, Mayfair W1K
Completed 2026
Built by Caudwell. Homes in Westminster sold for a median £830,000 over the last year, £1,119 per sq ft; see house prices in Westminster.
About 1 Mayfair Residences, Grosvenor Square
1 Mayfair is an ultra-prime development by Caudwell, delivering around 30 bespoke residences on the south side of Grosvenor Square. Designed by RAMSA with interiors by Thierry Despont, it features a classical Portland stone façade, generous proportions, and world-class amenities, setting a new benchmark for luxury living in Mayfair.
- Developer
- Caudwell
- City
- London
- Neighbourhood
- Mayfair
- Postcode
- W1K
- Address
- South Audley Street, Grosvenor Square, London
- Completed
- 2026
- Tenure
- For sale
Facilities
- 24-hour concierge & security
- Swimming pool & spa
- Gym / wellness suite
- Residents’ lounge
- Private dining rooms
- Private cinema
- Underground parking
Questions about 1 Mayfair Residences, Grosvenor Square
›Who is the developer of 1 Mayfair Residences, Grosvenor Square?
1 Mayfair Residences, Grosvenor Square is a Caudwell development in Mayfair, London.
›Is 1 Mayfair Residences, Grosvenor Square still selling?
1 Mayfair Residences, Grosvenor Square: completed 2026. Use the enquiry button to check current availability with Caudwell.
›What are house prices like in Westminster?
The median sold price in Westminster was £830,000 over the last 12 months (1,719 sales, −7.8% on the year before), or £1,119 per square foot, from HM Land Registry data. The house prices in Westminster page has the trend, prices by property type and every street.
Location
South Audley Street, Grosvenor Square, London, W1K
Nearest stations
- Marble Arch Station 0.4 miles
- Green Park Station 0.4 miles
- Oxford Circus Station 0.5 miles
- Hyde Park Corner Station 0.6 miles
Nearest schools
- St George's Hanover Square CofE Primary School 0.1 milesPrimary · ages 3–11
- London Park School Mayfair and London Park School Sixth 0.4 milesIndependent · ages 11–18
- Wetherby Senior School 0.5 milesIndependent · ages 11–18
- St Vincent's Catholic Primary School 0.5 milesPrimary · ages 3–11
Straight-line distances; actual routes will be longer. Stations from NaPTAN; schools from the Department for Education register, with the latest Ofsted signal.
Area insights
The Westminster neighbourhood around this development.
Sources: HM Land Registry price paid data, EPC register, Police.uk, Historic England, ONS Census 2021, Ofcom Connected Nations, Environment Agency. Planning offices.
Register for launch pricing and availability.
