BASE King William Street, Monument

55 King William Street is a fully managed office building in the heart of the City of London, sitting directly above the entrance to Monument Underground station at the junction of Gracechurch Street, Cannon Street and Eastcheap. The upper floors combine a lift-served glazed lobby and breakout lounge with an open-plan desking floor, glass-partitioned meeting rooms, a kitchen/breakout bar and a private roof terrace looking out over the City skyline.

One private office suite is available now: the full 4th floor, 5,613 sq ft fitted for 100 desks across 6 meeting rooms. BASE's fully managed model means one monthly bill in GBP covers rent, fit-out, IT, cleaning and coffee — £56,130/month (£561/desk) for the whole floor.

The building sits directly above Monument station (Circle and District lines, 0 minutes' walk). Cannon Street (National Rail, District and Circle lines) and Bank (Central, Northern, Waterloo & City lines, DLR) are both about 4 minutes' walk (sourced via Hubble's listing for this address).