It's common to have about 100-150 square feet, per employee. With 20 staff, you'd be looking at an office of about 2,000 to 3,000 square feet.
If you're looking to have an open-plan office with seats fairly close to one another, then 2,000 square feet should do the job. If you're looking to set up cubicles for each employee, then 3,000 square feet would be better.
Remember to protect your space with a good commercial fire policy. This will cover your computers, inventory, renovations, fixtures and fittings, and other personal belongings against fire, some types of water damage, etc. It's not cheap to have all this infrastructure set up, so it's a good idea to have this protection in place.
It's common to have about 100-150 square feet, per employee. With 20 staff, you'd be looking at an office of about 2,000 to 3,000 square feet.
If you're looking to have an open-plan office with seats fairly close to one another, then 2,000 square feet should do the job. If you're looking to set up cubicles for each employee, then 3,000 square feet would be better.
Remember to protect your space with a good commercial fire policy. This will cover your computers, inventory, renovations, fixtures and fittings, and other personal belongings against fire, some types of water damage, etc. It's not cheap to have all this infrastructure set up, so it's a good idea to have this protection in place.