Open plan offices and individual offices make very good bases for a business but sometimes, a private meeting or conversation will need to take place. Having a private meeting room can account for this, giving individuals a space to hold a meeting, an interview, or to have a private phone conversation that cannot take place in the office.
Many office spaces, such as dedicated serviced office spaces within an office hire building, will have private meeting rooms available. These will often be shared between the businesses that have offices in the building and so will need to be booked in advance. Some office managers will allow these rooms to be booked for free; others will require a deposit, or a payment for booking out the meeting room space. This is often minimal though and hiring a meeting room within your usual office building can offer you the best value when you need to host a private meeting.