I see nothing in the news saying Chabad house has been attacked.
I do however see bulletins telling Israeli’s to come there for shelter
Here's a link to their website.
On the site, it's refered to as the Nariman House. It's within walking distance of the hotels that have been attacked.
I’ve seen references in several reports to shooting at the Chabad House and also to a hostage situation there..... I’ll try to find what I saw before.
The reported hostage situation is referred to the in the list of report headings here, but I’m not a Stratfor member so I cannot access whatever report may be behind the headlines on this page:
http://www.stratfor.com/situation_reports