What surprised her most was the speed with which many expatriates left the country while those who had already booked space postponed their agreements, leaving her with just a few clients.
Like many landlords and dealers in office space, Ms Njambi has suffered great loss.
For many in the multi-billion-shilling real estate sector, business has been bad since people started working from home, with uptake of office space sluggish.
With many businesses struggling after sending staff home, some have scaled down operations to reduce rental cost by giving up space.
Therefore, Ms Njambi is banking on strong client relations to woo them back when the situation normalises as she strategises on new ways of boosting sales.