I am a broker in Brentwood. Deer Ridge is not a gated community, but it is a very nice Golf Course Community up in the hills. I suggest you check the Crime Stats per the web site.
Brentwood has several Gated Communities for families, including Apple Hill. It also have 5 gated Active Adult 55+ communities.
I live and work in Brentwood and my family is very happy here and with the community.
The link below is all the Brentwood homes currently on the market. Please give me a call if you have any questions.