Dartmouth Park House

This house extension in Dartmouth Park is designed to better connect the property to a large garden. A new dining room with oak framed sliding doors leads to a landscaped terrace, and a separate glazed evening room allows uninterrupted garden views. Between these two spaces a sheltered outdoor kitchen is created.

Concrete beams at roof level create a horizontal datum across the spaces. This begins internally and continues outside to shelter the barbecue area, finally returning to the ground to form a new pergola against the garden wall. When viewed from the garden, this continuous horizontal line creates the impression of a unified, wide extension that emphasises the generous 17m garden width.
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Sustainability improvements include replacement double-glazed sash windows throughout and ultra high performance vacuum insulation (Kingspan Optim-R) to improve heat retention. New glass to the rear extension has a solar control coating and a U-value of 1 W/m²K.

The structural beams in the extension are concrete with GGBS to reduce cement content. Underfloor heating, energy efficient appliances and low energy LED lighting were specified throughout.

“We are simply thrilled with the outcome. AFL fully delivered on the brief and our home feels modern, while in keeping with the period building” – Jackie & Adrian

Project Architect:
Becky Wootton

Structural Engineer:
Michael Hadi Associates

Location:
Dartmouth Park Hill, London NW5

Featured:
Architects’ Journal
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