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Tigg + Coll creates triple-height stairwell to transform west London home

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The refurbished Victorian terrace features a folded metal stair and dramatic voids to draw light down through the house

The design centres on the introduction of a new stairwell in which a folded metal staircase stands proud of the walls to form a triple-height void stitching together this family home. The staircase replaces a series of half-landings, while the void helps draw natural light deep into the plan. Oak fins shield and define the circulation space of the staircase and adjacent living areas. 

An additional extension to the rear of the house opens on to the garden. Here a second, double-height void connects the lower ground floor dining area with the ground floor kitchen, fronted by a large counter-balanced glazed sash, extending the living space out into the garden. 

Full stair render

Full stair render

Architect’s view

This slim, tall and very tricky Victorian property presented many design opportunities but also considerable challenges. The concept behind this counterbalanced sash window was largely driven by the existing closet wing articulation along the terrace. Our proposal is an interpretation of the traditional casement and swing/pivot doors used on the other properties.

David Tigg, director, Tigg + Coll Architects

6np image 03 (courtesy david butler photography)

6np image 03 (courtesy david butler photography)

Project data

Start on site March 2017
Completion July 2018
Gross internal floor area  240.5m2
Form of contract JCT Intermediate Building Contract 2011
Construction cost Undisclosed
Architect Tigg + Coll Architects
Client Private
Structural engineer AMA Consulting Engineers
M&E consultant Contractor design portion
Quantity surveyor/cost consultant Measur
CDM coordinator Goddard Consulting
Approved building inspector Quadrant Building Control
Main contractor Stella Rossa Contractors
CAD software used Vectorworks

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