St John’s Wood Villa

A seamless fusion of 19th-century charm and modern design.

St John’s Wood Villa, a 19th-century home in the St John’s Wood Conservation Area, has been transformed into a modern family residence while preserving its historic character. The project included a significant basement excavation beneath the existing house, creating space for a swimming pool, spa, and gym. Carefully positioned lightwells and rooflights bring in natural light, enhancing the tranquil atmosphere.

A contemporary Portland Stone rear extension was introduced to provide a flexible living area that seamlessly connects to the garden. The design balances modern architectural elements with the home’s historic fabric, maintaining its original charm while enhancing functionality.

We were appointed to develop the structural design, beginning with a Structural Method Statement for Westminster Council to support the approved planning application. The basement excavation beneath the historic structure required careful sequencing and temporary works to prevent settlement, ensuring structural stability throughout the process.

Reinforced concrete retaining walls and slabs formed the basement, while a steel frame supported the rear extension, allowing for large open-plan spaces. Extensive coordination was required to protect neighbouring properties, with party wall agreements and monitoring systems managing ground movements. Collaborating closely with LTS, we delivered a sophisticated transformation that integrates modern engineering with the villa’s timeless character.