The consent clears the way for family-run developer Chart Forte (Monument) to transform the Grade II-listed St Clement’s House at 27–28 Clements Lane into a 180-key luxury Marriott hotel, with designs by Studio Moren.

Construction works are proposed to commence this Summer, lasting for approximately 18-24 months.

The mid-19th century building, located between Monument and Bank, will be converted from underused offices into a design-led hotel with public lounge, restaurant, café and bar at ground level, supporting the City’s push to diversify the Square Mile beyond its traditional office base.

A lightweight metal rooftop extension will add four new storeys of guest accommodation.

The curved design draws on the building’s existing segmental arches and the vaulted forms of nearby St Clement’s Church, allowing the scheme to increase capacity while remaining sensitive to the surrounding historic townscape.

Heritage-led proposals will retain and restore key features including the marble-clad street-level façade, original staircases and cast-iron columns. Lost elements such as decorative plaster ceilings, chimney breasts and arches will be reinstated as part of the conversion.

The scheme targets BREEAM Excellent and adopts a reuse-first sustainability strategy, including roof-mounted PV, low-carbon materials and services, fabric upgrades, rainwater harvesting and a biodiverse green roof.