This unique Thomas Cubitt designed lower ground floor flat boasts a perfect blend of character, practicality, and charm, offering three double bedrooms, three bathrooms, and a separate guest WC. The property's standout feature is its substantial undeveloped vault space, approximately 260 ft2, which can be accessed directly from the main courtyard. This rare opportunity allows for potential development into a home gym, studio, guest suite, or extended living area, making the flat not only spacious but also smartly future-proofed. With growing demand for creative lower ground conversions, this added potential makes the property an attractive option for anyone seeking a distinctive and flexible London home.