I want to buy a house in Bermuda St and Darby Avenue. How safe is this area?

It is relatively safe. Within one mile of the corner of Bermuda and Darby in the last 6 months there have been 148 crimes reported, mostly minor. Here are the most notable crimes:

6 assaults
30 burglaries
1 rape
6 robberies

The only one of those on the high side are the burglaries. Overall though, given the density, I think that you are okay.

If you want to check it out for yourself, you can take a look at this website:

www.crimemapping.com

Just plug in the address, adjust the dates and select the crime types. Good luck!