Semi-detached / Delvendahl Martin Architects

Architects: Delvendahl Martin Architects
Area: 350 m²
Year: 2015
Photography: Tim Crocker
Project Team: Viktor Westerdahl, Finbarr O’Dempsey
Glass Contractor: Glass UK
Contractor: Sporn Construction
Structural Engineer: Price & Myers
City: Oxford
Country: United Kingdom

The Semi-detached residential project by Delvendahl Martin Architects in central Oxford transformed two Victorian houses into a unified family home. Completed in 2015, the design incorporates a central staircase that reconfigures the interior, creating a seamless flow throughout the space. The addition of a new loggia at the rear extends the living area, while custom-designed elements, including the facade and fittings, contribute to the house’s distinctive character.

Semi-detached / Delvendahl Martin Architects

The conversion project involved merging the two semi-detached Victorian houses into a single-family residence. A new staircase, clad in stained timber and positioned centrally and perpendicular to the party wall, unites the two structures, creating a cohesive and functional living space.

This new element shifts the original symmetrical layout, enabling a continuous spatial flow across all floors. The ground floor accommodates a secondary staircase, constructed from reclaimed bricks, which connects the entrance level to the back garden. A new loggia, accessible from the kitchen and living room, was added at the rear extension.

Semi-detached / Delvendahl Martin Architects

This loggia, positioned between the outriggers, uses materials that contrast with the original buildings, emphasizing the new construction while unifying the appearance of the house.

The facade is enhanced with deep anodized aluminum blades, providing daylight control and privacy from neighboring houses. The glass screen, which can fully open, transforms the spaces into an elevated terrace overlooking the two rear gardens, where the original dividing wall has been preserved.

Semi-detached / Delvendahl Martin Architects

All the fitted furniture, lighting, door handles, and handrails were custom-designed for the house.

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Project Location

Address: Worcester Place, Oxford, United Kingdom

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