Mantra Capital Office
Location: Blackfriars Road, Southwark
Type: Commercial/Retail
Stage: Complete
Brief: Complete fit-out, including lowering of basement floor level



The brief for this project was to transform a dark and outdated ground-floor corner retail unit into a light-filled, open-plan workspace that fosters interaction between staff and customers while providing a flexible and contemporary commercial environment.
A key aspect of the scheme involved the comprehensive refurbishment and integration of the existing basement, which was previously underutilised as storage due to its limited headroom and poor access to natural light. To maximise the usability of this level, the existing basement slab was lowered and the structural soffit above was left exposed, creating a more generous sense of volume and enhancing the spatial character of the interior.
To improve daylight penetration throughout the building, a series of new structural openings and rooflights were introduced within the ground-floor structure, allowing natural light from the enlarged glazed frontage and internal glazing elements to filter down into the basement level. This strategy significantly improved the quality of the lower-ground accommodation, creating a comfortable and productive environment for staff. Areas where access to natural daylight was not feasible were rationalised to accommodate ancillary functions, including plant rooms, storage areas and WC facilities.
Across both levels, extensive glazed partitions and large-format glazing were incorporated to maximise daylight, reinforce visual connectivity between spaces, and promote a sense of openness throughout the workplace. A restrained palette of light-toned materials, natural finishes and contemporary detailing was carefully selected to enhance the perception of space, improve occupant wellbeing, and create a bright, welcoming environment tailored to the operational needs of the client.














