This project is the careful refurbishment of a penthouse apartment within a 1920s mansion block in Marylebone, designed by H.W. Willis and W. Kaula and completed in 1927. The work focuses on restoring lost character while integrating contemporary upgrades with minimal visual impact.

Throughout the apartment, later additions are removed and areas of lost ornament reinstated. Reclaimed parquet floorboards are laid to a pattern discovered as a trace in the substrate, recalling an earlier arrangement that had been stripped out over time.

New bathrooms are introduced using terrazzo and period inspired fittings, responding to the age and ornamental language of the building. An inlaid jade border reintroduces colour and detail in a manner consistent with the original interiors, while integrated joinery is carefully detailed to sit quietly within the plan.

A bespoke timber screen opens onto the trellised and planted roof terrace, replacing later interventions with elements more in keeping with the original architecture. Environmental performance is discreetly improved through the introduction of an air source heat pump and vacuum glazing, allowing the apartment to be upgraded without compromising its character.