http://www.nyc.gov/html/housinginfo works. http://www.nyc.gov/housinginfo redirects to http://www.nyc.gov/html/housinginfoinfo which gives a 404 error, that's probably a typo bug.

http://www.nyc.gov/dob 404s, but http://www.nyc.gov/html/dob works, so that ought to be fixed.

http://www.nyc.gov/planyc2030 works.