Whether semi-detached or row, the townhouse is a good compromise between the typical co-ownership apartment and the single-family home. This type of project is established in "horizontal co-ownership". Each of the fractions is composed of a private portion (usually a house) and a share of common portions (the land). Each co-owner is the owner of his private portion "from nadir to zenith", while the common portions are usually limited to traffic lanes, parking lots and certain strips of land. From a legal point of view, horizontal co-ownership has no special status. Horizontal co-ownerships are governed by the same rules set out in the Civil Code of Quebec that apply vertically (e.g. residential towers).