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W1U 2DB

Marylebone Lane, London, W1U

£8,500,000
Not valued
3 Beds
3 Baths
214 m² Floor area
Type Flat
Listed 18 Sep 2026
Price per m² £44,393 / m²

Set across the sixth and seventh floors of The Mansion, this three-bedroom duplex penthouse delivers impressive proportions, beautifully considered interiors and some of the best amenities in Marylebone.

The sixth floor is accessed via the building’s main lift, with a private lift inside the penthouse connecting both levels.

Upstairs, the focus is on entertaining. An expansive open-plan kitchen, dining and reception space is filled with natural light and opens onto a private balcony.

The principal suite features a generous walk-in wardrobe and beautifully finished en suite bathroom with a freestanding bath, walk-in shower and twin basins. Two further bedrooms each have their own en suite bathroom, alongside a separate guest WC.

The Mansion is designed around discreet, five-star living, with 24-hour concierge, valet parking, a private residents’ lounge, gym, spa and swimming pool.

Marylebone High Street and Chiltern Street are moments away, with Bond Street, Mayfair, Regent’s Park and Hyde Park all within easy reach.

Private, elevated and designed for effortless London living.

The penthouse also benefits from approved planning permission for a private roof terrace, offering the opportunity to create further outdoor space above Marylebone.

How the asking price has moved

Sep 2026
£9,500,000
Listed at original asking price
Oct 2026
£8,500,000
Current asking price

Prices, costs and transport nearby

What homes within 400 m sold for since Nov 2023, by type. Source: HM Land Registry.

Type Median Middle 80%
Flat This home
Median
68 sales
Terraced
Median
6 sales
Semi-Detached
No sales nearby
Detached
No sales nearby

Most recent sales

Address Sold price Date Type
Flat 4, 9, 9 WELBECK STREET, W1G 9YB £2,300,000 Nov 2025 Flat
22 JAMES STREET, W1U 1EJ £150,000 Oct 2025 Flat
Flat 40, 19, 19 BARRETT STREET, W1U 1BB £1,250,000 Oct 2025 Flat
Flat 4, THE PHOENIX, 8 BIRD STREET, W1U 1BU £550,000 Sep 2025 Flat
Flat 12, 12, 12 ALDBURGH MEWS, W1U 1BT £1,075,000 Mar 2025 Flat
Flat 12, LADBROKE APARTMENTS, 3 WELBECK STREET, W1G 0AR £2,250,000 Feb 2025 Flat
Flat 3, 25, 25 JAMES STREET, W1U 1DH £900,000 Feb 2025 Flat
Flat 303, THE MANSION, 9 MARYLEBONE LANE, W1U 1DB £5,800,000 Jan 2025 Flat
Flat 401, THE MANSION, 9 MARYLEBONE LANE, W1U 1DB £4,350,000 Jan 2025 Flat
Flat 103, THE MANSION, 9 MARYLEBONE LANE, W1U 1DB £1,450,000 Dec 2024 Flat
Flat 402, THE MANSION, 9 MARYLEBONE LANE, W1U 1DB £4,500,000 Oct 2024 Flat
Flat 20, WELBECK HOUSE, 62 WELBECK STREET, W1G 9XE £5,625,000 Aug 2024 Flat
Flat 7, LADBROKE APARTMENTS, 3 WELBECK STREET, W1G 0AR £1,350,000 Jul 2024 Flat
11 ALDBURGH MEWS, W1U 1BT £2,075,000 Jun 2024 Flat
Flat 11, LADBROKE APARTMENTS, 3 WELBECK STREET, W1G 0AR £900,000 Jun 2024 Flat
Source: HM Land Registry · within 200 m · most recent first

Marylebone Lane, London, W1U

We don't have enough nearby Land Registry sales matched to EPC floor-area data for this postcode and property type to calculate a fair price estimate. All other details are still available.

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About this valuation

Fair price calculated from HM Land Registry sold prices in the same postcode area, adjusted by the UK House Price Index, and multiplied by the EPC-declared floor area of 214 m². Updated daily.

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