1. The points system1, also called the home valuation system, is a system that reflects the quality of the house in points. Every part of the house, such as surface and sanitary, receives points. These points added together determine the maximum rental price of the property. Every year this is looked at again and therefore also determined again.
    This point system does not apply to the free-sector housing. The rented property or the tenant determines the rental price for these properties.
    The rent liberalization limit determines whether you occupy a social rental home or a home in the free sector2. You know whether you have a free sector property if the initial rental price is higher than a certain amount. In 2019 that amount was € 720.42.
    3From 1 July 2019 to 1 July 2020 the rule applies to special households, that are households with more than 4 people or for more households with one or more AOW claimants, the rent can be increased by a maximum of 4.1 percent. That is 1.6 percent inflation + 2.5 percent. This also applies to households that do not belong to an exception group with an income up to € 42,436, in 2017 the maximum rent increase will also be 4.1 percent. For households that also do not belong to an exception group and earn more than € 42,436, in 2017 the maximum rent increase is 5.6 percent. Here inflation is added from 1.6 percent to 4 percent.
    The liberalization limit has been frozen from 1 January 2016 to 2019 at € 710.68, with effect from 1 January 2019 this limit has been increased to € 720.42. That means that for a home from January 1, 2019, it must have 145 points in order to be let out on a liberalized basis, and from July 1, 2019, 142 points.

    https://www.rijksoverheid.nl/onderwerpen/huurverhoging/ question-and- answer/huurliberalisatiegrens