I was asked in an interview whether the environment I work in is structured or unstructured. I believe at their end it is unstructured. How will my answer hurt or help my chances at the company? What is the intent of this question? The place where I work is structured in terms of the technologies we use but all of us work pretty independently on the individual problem. Is this a sufficient explanation? What individual areas can I highlight to support my answer?
I don't think you have fully understood structured/unstructured:
Both have their positives and negatives.
This is a question you really want to answer correctly. If you are someone who cannot stand a structured work environment, you do not want to end up working in one. Likewise for the opposite. Whether it helps or hurts probably depends on how far along the company is in one direction. For example if you are interviewing with a 5 person startup, they probably will be looking for "unstructured" as an answer. If interviewing for an IT help-desk, perhaps structured.
The net effect probably slightly depends on the management philosophy as well.
It normally would be to determine how good of a fit you would be for the work environment and avoid any significant culture clash.
This is probably a good answer (even if you misunderstood structured vs unstructured). You could expand to show the way you have approached problems, for example, if you had a manager give you an assignment such as, "this feature doesn't work, we don't know why, fix it" you could detail how you took that, developed steps to identify and fix the issue, etc.
Even though they asked about your current environment, I would have talked a bit about my current enviroment and then why I liked or disliked it and what kind of environment I prefered to work in and why.
Frankly I wouldn't care what their enviroment was like when I answered this because if it doesn't match what I need and am good at working in, then I'm not interested in them. Both you and the interviewers are looking to see if you are match for their workplace. When you answer workplace fit questions, just be as honest as you can, you don't want to go to a place you don't fit anymore than they want to hire you for one.