Flat Penthouse, 6, Charles Street, London, W1J 5DG

An exceptional duplex apartment in an exclusive Mayfair development.

This impeccably finished duplex apartment unfolds over the fourth and fifth floors of this exceptional new development by redd, which offers a boutique collection of homes in one of London's most coveted addresses.

Perfectly positioned just off the north-east corner of Berkeley Square. Each residence has been exquisitely crafted in collaboration with renowned design studio 1508 London.

The internationally lauded design team have successfully honoured the traditional features of the building while creating sophisticated contemporary interiors.

Traditional plaster mouldings and cornicing's, Havwoods European oak flooring in a herringbone pattern, and bespoke joinery throughout pay homage to the building's storied history.

No detail has been overlooked to ensure comfortable and convenient contemporary living, which includes comfort cooling, underfloor heating in the bathroom, and curated lighting by Light Directions includes Crestron control.

On the fourth floor, soaring ceiling heights, oak parquet floors and three sets of beautiful arched floor-to-ceiling windows with French doors open onto a private terrace, making the open-plan reception and dining room the perfect place to entertain.

It leads seamlessly onto the bespoke dine-in kitchen where you will find marble countertops and splashbacks, Gaggenau and Miele appliances, a large wine fridge and sleek Dornbracht tapware.

Ascending to the fifth floor you will find three generously proportioned ensuite double bedrooms.

The principal suite has a luxurious spa-like ensuite bathroom and a walk-wardrobe with bespoke cabinetry.

The two additional bedrooms each have ensuite shower rooms, built-in storage and large windows.

Security is paramount throughout the development, with Banham locks, a video entry system, and a 24/7 concierge, while residents also benefit from lift access to all floors.

Located in Mayfair which is arguably London's most exclusive neighbourhood, where grand Georgian architecture, Michelin-starred dining, exclusive private member's clubs and luxury boutiques line leafy squares and cobbled lanes.

Key features Private roof terrace Newly developed by redd Interior design in collaboration with 1508 Originally built in 1849 Lift access Concierge Comfort cooling Underfloor heating High pressure hot water system A rare find in Mayfair, this stunning duplex penthouse offers a vast living space flooded with natural light, a spiral feature staircase and its own private roof terrace.

Accommodation Large living/dining room Kitchen Principal bedroom with walk-in dresser and ensuite Two further bedrooms with ensuite bathrooms Cloakroom Roof terrace