As your children get older there is greater demand on their time and on their space. As the school work gets complicated, and more numerous, they will need a place that is totally dedicated towards study. However, in this world of continuous professional development, or just the fact that there are so many online courses to do, it might be an idea that you and the rest of your family need it as well.
The first thing to do is to look at a desk unit. There are a few questions to ask yourself here. Will it be a case of having space for just one person to work at the desk or do you want provision for more people? Will it have a computer and if it does will it be a laptop or tower. If it is for just one then you can save some considerable space by investing in a corner unit. It is also a good idea to invest in a nice hardboard so that you can all keep track on what you are doing.
The next thing to look at is a chair. Posture is an essential part to get correct when you are working at a desk. This is where you will need a proper Draughtsman Chair like the ones from https://www.bestbuy-officechairs.co.uk/office-chairs/draughtsman-chairs/. They can provide the correct back and hand support that you will need.