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Cullinan completes Hampstead house extension

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[FIRST LOOK + PLANS + PROJECT DATA] Cullinan Studios has completed this glazed extension to a gradeII-listed house in Hampstead

The 100m² project has improved the upper and lower ground floors of the grade II-listed Georgian house in north London.

A new central living space has been created ‘giving the house a new heart’, with smaller spaces coming off this main space.

Waxed birch ply and oak has been used to line the stairs, floors, walls and ceiling.

The architect’s view 

‘Much of the original integrity of this grade II-listed Georgian house had been lost through a series of clumsy interventions. The house was poorly planned – with no real central living space or easy flow from one part to another.

‘We did not want to simply add on more living space but rather improve the upper and lower ground floors of the house in a way that worked with the existing building, both internally and externally. It was clear that the new part of the building would relate to the garden on a more domestic scale if its height were lower.

‘Clever arrangement of the kitchen, pantry, utility room and cloakroom makes for a smoothly and efficiently run home.

‘Spaces open into each other – and out into the garden. The delight of a London garden is enjoyed from carefully organised windows and also from an upper outdoor terrace.

‘Extensions to similar houses close by had aimed for a contrast to the existing style. We took a different approach and started with what was already there. We chose materials that were the same or similar to the original house: timber; glass; neutral-coloured fenestration; and off-white coloured rendered masonry panels.’

Cullinan House in Hampstead

Project data

Location Hampstead, London
Type of project residential
Client private
Architect Cullinan Studio
Landscape architect DesignWild
Structural engineer Cullinan Studio
Lighting consultant Delta Lighting
Main contractor Cape Construction
Tender date April 2013
Start on site date July 2013
Completion date mid April 2014 (building), May 2014 (landscaping)
Contract duration 10 months plus 3 months defects period
Gross internal floor area 100m2
Form of contract and/or procurement MWD 2011- Minor Works Building Contract with contractor’s design 2011
Total cost confidential


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