Definition : Nadir

Point located in the center of the Earth, opposite the zenith. In terms of real right, it is the lowest point in the field that can be appropriated. When a lot is located in a horizontal cadastral plan, it generally includes, unless otherwise indicated, all the space below, up to the nadir.

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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).
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By purchasing a condo (apartment) in a residential tower, you automatically become an owner in a vertical co-ownership. You can also be in a divided co-ownership, if you purchase a house (semi-detached or townhouse), built on the same lot than other individual homes.  It is then called a horizontal co-ownership. If this is the case, you may not be the sole owner of the land surrounding your home.  You will therefore share with others the ownership of the private streets leading to the homes and common areas, and the common equipment such as the swimming pool and collective parking.
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