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Sydney Street

+44 (0) 20 7225 0277

151A Sydney Street
London
SW3 6NT

Kensington Square

+44 (0) 20 3761 9691

13 Kensington Square
London
W8 5HD

Mayfair

+44 (0) 20 3815 9144

50 Grosvenor Hill
London
W1K 3QT

Bubble House

Upper East Side

Bubble House, Upper East Side


Iconic modernist brownstone with distinctive convex oval windows

$5,750,000

£4,264,148

€3,641,566

¥641,172,966

AED 15,660,084

SAR 15,993,805

Internal

4,736

sq ft

439

sqm

Number of Stories

4

Number of Stories

4

Bedrooms

4

Bathrooms

5

Property Type

Single-Family Townhouse

Map

Floorplan

The Property

A rare architectural gem offering substantial space across four stories.

Entering the house, you discover approximately 4,736 square feet of generously proportioned rooms ready to be reimagined for modern living. The garden level features a flexible office space, providing excellent potential for live/work use. The upper floors showcase the building's lofty proportions, with each level offering well-proportioned rooms that fill the space with light through the signature oval windows.

The Bedrooms

Currently configured with four bedrooms and five bathrooms, the substantial interiors present exceptional opportunity for a discerning buyer to create sophisticated contemporary living spaces. The basement level adds to the sense of scale, providing additional functional space throughout this impressive property.

The Design

Originally constructed as a traditional brownstone in the 19th century, this exceptional property underwent a visionary redesign in 1969 by architect Maurice Medcalfe of Hills & Medcalfe. Medcalfe transformed the façade into a modernist icon with its smooth stucco exterior and distinctive convex oval windows—a sculptural interpretation of the classic bay window that fills the interiors with light whilst creating a striking architectural presence. The property requires renovation throughout, offering the opportunity to reimagine the space whilst preserving its unique architectural heritage.

The Neighbourhood

East 71st Street is a quiet, tree-lined street in the heart of Lenox Hill, moments away from the open spaces of Central Park. This upmarket neighbourhood offers sophisticated proximity to acclaimed restaurants and boutiques, whilst remaining within easy reach of convenient transit connections. The location provides an ideal balance of residential tranquillity and urban convenience, with the cultural attractions and refined amenities of the Upper East Side just a short walk away.

This remarkable property stands as a testament to mid-century architectural innovation, representing a bold reimagining of traditional New York brownstone design. The 1969 modernist transformation by Hills & Medcalfe created one of the neighbourhood's most distinctive façades, demonstrating exceptional originality and craftsmanship that continues to command attention on this elegant Manhattan block.

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