It is quite possible to add a comfortable office to your home surroundings no matter how small your space to do this maybe.
As with all offices, the most important piece of furniture for which you can organize your office around is your office desk.  Your office desk is also an essential piece of furniture because it dictates how much working space you will have to complete your tasks.

If you are limited with space you may find that you do not have room for separate filing systems such as a filing cabinet and computer desk, therefore your office desk will need to accommodate everything that you cannot achieve with the additional office pieces.

With limited space your office desk will need large draw space and for filing you may need to look for larger draws with metal poles inside the draws to enable hanging files for you to label for paperwork.  Additionally, you will probably need to work out your desk space in such a way that your computer monitor or laptop does not take up the entire top surface space so you still have room to write and carry out other necessary functions.

Just because you are creating a home office doesn’t mean you have to have an area that is stiff and stark, you need to enjoy your working area because much of your time will be spent there.

Ideally you should choose a desk and office chair that is in line with your décor at home whilst still retaining the function it is required for.  Your office chair should be comfortable and support your back; an office chair with wheels is preferable so you can move around to reach different parts of your office. 

Remember that lighting is important, bright lighting keeps you alert so ensure you have a direct light over your workable space e.g. your office desk or have a desk lamp on top of your desk that focuses directly onto your paperwork to avoid eye strain.