Complete refurbishment of Grade I listed building with side and roof extension


Private, Residential


South Street, Mayfair, London W1

Project Value

Not disclosed

With extensive experience in Grade I buildings and high-end house refurbishments, MBL was the partner of choice for this challenging residential project. We lowered the basement and skillfully extended the roof and side elevation to create 7 floors in this stunning property. A full refurbishment was also undertaken, with new Mechanical, Electrical and Plumbing (MEP) services throughout.

The home extension created the space for luxury amenities. The MBL team installed a professional kitchen, a bespoke Spa and Jacuzzi in the basement, a new cinema and cigar room as well as a new passenger lift and dumb waiter. The masterpiece is an awe-inspiring suspended stone staircase from the basement to the 5th floor, with polished plaster walls.

Built to perfection, the renovation an extension create a truly unique and breath-taking home whilst ensuring it retains the character and history of the building.



For more information please call us on (020) 8900 2345 or send us a message below.

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