Joint ownership can be defined as a regime of forced co-ownership of dividing barriers such as walls, hedges and ditches. These are not easements but genuine rights of ownership held in common by two people.

The release procedure is an administrative procedure. It allows the owner of a property subject to planning regulations preventing it from enjoying it, to induce the recipient of the easement to acquire the property.

An administrative act is a legal act subject to administrative law, the litigation of which is the responsibility of the administrative judge. Mayors and presidents of local authorities may use real estate acquisitions in a development or road project, either in administrative form or by notarial deed.

The purpose of urban planning documents is to specify the rules affecting the allocation and occupation of land (mostly for buildings).

To improve one’s income or retirement, life annuity makes it possible to sell one’s property (house, apartment or other) in exchange for a payment in the form of a life annuity by the buyer.

Expropriation and pre-emption are complex procedures. When the owner's payment raises obstacles, it may be necessary to use the deposit system for the price of the expropriated or pre-empted property.