In the last 90 days, 2 listings have been posted online, which means listings might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 50% of the available leases in the London are subleases, so you might be able to find a shorter term or below market rent. 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 sqft. Most properties in this region are approximately 2 stories. Most buildings in this area were built in 1959 and are Class C.