attic dormer out & property tax (Hempstead, Nassau: homes, neighborhood, appraise)

[jerron]

I'm thinking of dormer addition to the attic to make it a playroom for my kids. Someone reminds us it might increase the property tax. So what is the general rule that what kinds of addition will cause tax increase and what will not? I'm in North Hempstead in Nassau.

[ovi8]

The general rule is if it raises your appraised value 1.5x, then your taxes will go up 1.5x. Appears to be true after our dormer.

If it increases your home value, it will be an increase. In your case a single room may not increase your appraised value all that much but undoubtedly it's a lot of headache otherwise. Are you only doing the 1 room? The permits will trigger a new appraisal.

[OhBeeHave]

Originally Posted by jerron

I'm thinking of dormer addition to the attic to make it a playroom for my kids. Someone reminds us it might increase the property tax. So what is the general rule that what kinds of addition will cause tax increase and what will not? I'm in North Hempstead in Nassau.

Are there any similar homes in your neighborhood which have dormered the attic the way you are considering?

If so look at mynassauproperty.gov and see what their taxes are -- it's not a perfect method, but it might give you an inkling.