The typical asking rate per listing is in the $10's per square foot per year. The Woodbridge region is seeing a decline in rates. In the last 3 months, the median rate decreased $23 per sqft per year. That's a 57% decline in rent.
In the last 90 days, 17 listings have been listed, which means new availabilities are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 6% of the listings in the Woodbridge are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,500 sqft. Most properties in this market are around 3 stories. Most buildings in this area were built in 1973 and are Class A.