If your house is listed on the National Register of Historic Places you may be eligible for Federal Tax Credits. Unfortunately, New Jersey State law does not currently enable municipalities to grant favored tax treatment (abatement, exemptions, etc.) to designated historic structures; however, there is a bill in the State Assembly (Assembly Environment Committee—Assembly, No. 1172) that may enable you to recoup some monies if your house is designated a Landmark Site. This bill has been in front of the Assembly since March of 2000 but has not as yet been enacted into law.