Borzoi can be great house dogs if they are trained from an early start. Puppies can be rowdy, but with training will learn to love their house and split time with the outside. This is not to say borzoi can’t be outside dogs whatsoever: either is a fine choice. Crate training and exercise will be a must if you choose to keep your borzoi inside. Being able to run and stretch their legs every day to every other day may be a good rule of thumb
Many resources have actually listed borzoi as one of the top apartment dogs due to their quiet personality. Click best apartment dogs for a link to one such website.