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5 Chalcot Road

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A mid-terrace four storey house by Studio Octopi

The architect’s view

5 Chalcot Road is a mid-terrace four storey house built around 1860 that fronts onto the north-east side of Chalcot Road.  It is a single family house that has had numerous internal and external alterations. The current layout suffers from a lack of connection between principal living spaces.

As well as extending the property our proposals focused on increased connectivity between floors with a new double height space at the rear. An open staircase allows glimpses up to the first floor from the basement, achieved by a combination of fire engineering, sprinkler system and forced ventilation.

The double height space at the back has two parts. The older part, where a new 2 storey pivot door reinforces the vertical nature of the brick closet wing, and a new glass extension with a full width 2 storey high sash window. This extension is carried up to the first floor with a smaller full width sash window and rooflight forming the master ensuite.

Overall the proposals preserve the historic pattern whilst allowing the property to be developed as a family home.

  • Chris Rohmer-Lee, director, Studio Octopi

Project data


Start on site: July 2012
Completion: May 2013
Gross internal area: 250m2
Procurement: Single stage tender
Total cost: Undisclosed
Client: Confidential
Structural engineer: Built Engineers
QS: Listers
Fire engineer: Braidwood Fire
Main contractor: GMS Building Services
CAD software used: Vectorworks
Annual CO2 emissions: Unavailable


Specified products


Bespoke Sash Window System




Privacy glass to sash window


Triple glazed window with copper EML



Bespoke pivot door






Velfac 200 system





Polished concrete screed



Bespoke kitchen counter


Glacier white corian



Bespoke Kitchen island unit

Prima Marble

Carrera white marble



Bespoke steel stair

Perforated steel treads + risers with solid steel plate balustrade.

Design by Studio Octopi



SDS London





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