Open House Festival

Primrose Hill House


Architecture for London, 2022

6 Conybeare, NW3 3SD

This 1960s house in Primrose Hill is a detached property in a Modernist estate of brick courtyard houses. Our project reconfigured the internal layout and added a rooftop extension, whilst improving the house's thermal performance.

Getting there


Swiss Cottage, St. John's Wood, Chalk Farm


South Hampstead


C11, 31



Project Information

This 1960s house in Primrose Hill is one of only two detached properties in a Modernist estate of painted brick courtyard houses and small terraces. The house is uniquely surrounded on three sides by communal landscaped gardens.

Our proposal removes unsympathetic alterations whilst creating open-plan living spaces internally. The key to this courtyard house is the relationship between the living spaces and the private rear garden. This is enhanced with a large picture window in the kitchen and full-height sliding timber doors in the living area.

A rooftop extension creates a new space for yoga and meditation, with views over the Chalcots Estate’s landscaped gardens. This was the first upwards extension in the estate allowed under the new permitted development rules.

Inspired by the trompe l’oeil in Azulejos tiles found in Portuguese manor houses, our design employs subtle shifts in material to create borders and frames in the new staircase, floor finishes and joinery details.

High-performance insulation and an airtight layer have dramatically improved the house’s thermal performance. An MVHR system provides fresh filtered air with heat recovery, further reducing energy bills. An air-source heat pump meets all hot water and space heating requirements, creating a fossil fuel free home.

Architect: Architecture for London

We are award-winning London architects dedicated to the creation of inspirational architecture and interiors. Our holistic design, engineering and construction service ensures that each project meets the exacting requirements of our Healthy Homes approach. We employ the highest comfort standards, including Passivhaus and EnerPhit; creating warm, low-energy homes and workplaces that are a joy to inhabit. Our residential projects include new homes, house extensions and refurbishments at all scales. We have extensive experience with heritage properties, where there is often a need to balance sensitive refurbishment with carefully considered contemporary extensions. Projects are designed holistically with architecture, landscape, joinery and interiors each interlocking to form a coherent whole.


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