I had an experience before in organizing a team building for our company too. I was assigned to look for a venue and to create a plan based on the given budget by the company. My choices of venue were always beach resorts and/or nature trip adventure since we always hold our team building during summer season. I suggest to look for a venue which is less crowded so that you and your group can really enjoy the facilities of venue. Check the rooms and other facilities to ensure that they will feel comfortable. Remember that during team building, we want to feel relaxed and forget about work. Include games too on your list and that can build trust and group effort. A company always want the staff to work as team. Set-up a group sharing too where they can express anything. Encourage them to share good and learning experience from the past where other can learn from it too. I have a lot to share but my I am running out of time. I'll surely come back for more.