If you are a cold zone 5 I would not recommend them. They will not grow well here in northeast Iowa (rated zone 5a but every so often receiving colder temps).

If you are in Zone 5b you would probably be okay.

Look at Thuja 'Hetz Wintergreen' or 'Brabant' if you need a hardier solution.

How many stories to the new house - that is, how high will you need to block? In choosing plants, height and width should be considerations as should the formality of the look you want and whether it needs to be year-round or just in warmer weather when you are more likely to be out-of-doors. If you have deer, Thuja isn't a good choice since they are likely to be browsed in winter. You might want to look at the work of Deborah Silver, a Detroit area designer who keeps a blog, particularly if your zone 5 is in the midwest or Great Lakes area. Here's a search of her blog, Dirt Simple, with the term privacy. She uses a combination of shrubs, trees, and occasionally fences in often tight spaces to add privacy to the landscapes she designs. If you have the space, a combination of deciduous trees and evergreen shrubs might work for you.

We had these in WI MI and they did fine, it took about five years to get good "privacy" from them as far as blocking our lawn activities. They were about 8 feet tall when we bought them. We were in a subdivision, so no deer issues but I have seen them got eaten up in the country. It's a very uniform look, so like the prior poster said, I would think about what look you are going for too.