The typical asking rate per listing is in the $10's per square foot per year. The Brecon region is seeing a an increase in rates. In the last 3 months, the median rate increased $15 per sqft per year.
In the last 90 days, 0 listings have been made available, which means leases are probably leasing quickly. You'll want to be prepared to make an offer immediately. About NaN% of the available space in the Brecon 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 posted, so finding a space for a small business might be tough.
Even though the median size is 3,680 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are close to 2 stories. Most buildings in this region were built in 2000 and are Class A.