We hired this place for our wedding
http://www.villastjames.com
and it is amazing. Fully secure and gated, fenced pool sea views, beach across the road with tidal pool for children to play in. Kalk bay up the road boasts some great cafés too!
I can also highly recommend Charmaine and her team who can fully cater or offer a one off dining experience
http://chardonnaychefs.co.za/web/
We had an amazing week there and can't wait to go back!