• Tenure: Leasehold, 999 years remaining

• Outside space: No

• Parking: No

• EPC: B

• Service charge: Approximately £13,000

Key features and description

London's mansion blocks were the city's answer to Paris's renowned apartment living. They offered well-to-do families an alternative to the townhouse, with all the space, ceiling heights and grandeur they expected, arranged laterally across a single floor.

Constructed in the mid-1920s on the Howard de Walden Estate as a building of superior apartments, the highest grade of the day, Stone House was developed by a syndicate that included Charles Peczenik, who trained in Paris under René Sergent, the architect behind the extension and refurbishment of both Claridge's and the Savoy.

The building's architect, George Vernon, gave it a rusticated stone ground floor, arched windows and a corner tower that anchors the junction of Weymouth Street and Hallam Street, within the Harley Street Conservation Area.

Set on the raised ground floor, a grand Marylebone apartment with ceilings of almost ten feet. An open-plan reception room incorporates space for dining, a fully fitted kitchen and enjoys a double aspect onto both Weymouth Street and Hallam Street.

A walk of approximately half a mile takes you up Portland Place, past John Nash's Park Crescent and into The Regent's Park itself.

Exceptionally well served for the best that Marylebone has to offer: the Royal Academy of Music, Bechstein Hall, Wigmore Hall and five Michelin-starred restaurants all lie within half a mile, with Great Portland Street and Regent's Park stations both within 0.3 miles.

Council Tax band: London Borough of Westminster
(Band G).