WOZ valuation models

Municipality of Noordoostpolder

Valuation models for WOZ value calculations within Key2Value.

Last change on 30th of May 2024, at 14:47 (CET) | Publication Standard 1.0

• Publication category: Impactful algorithms
• Impact assessment: Field not filled in.
• Status: In use

General information

Theme

Public finance

Begin date

01-2002

Contact information

[e-mail]

Link to publication website

https://noordoostpolder.nl/privacy

Responsible use

Goal and impact

The purpose of the algorithms applied is to calculate the market value of immovable property under
of the WOZ Act.

The level of the WOZ value has various implications for stakeholders (citizens and businesses). The
main impact is in direct taxes, such as property tax. In addition, the
level of the WOZ value -directly or indirectly- affects other taxes, such as inheritance and gift tax
income tax and corporation tax.

Considerations

For the efficient, correct and uniform calculation of the WOZ value, the use of appraisal models is
crucial. Without these models, this is not possible.

Human intervention

The outcome of the algorithms is determined each time by the levy officer. To do this carefully, several layers of control take place, for example by doing spot checks.

Risk management

Supplier indicates no risks with this algorithm

Legal basis

Property Valuation Act (WOZ)

Link to Processing Index

Privacy | Gemeente Noordoostpolder

Operations

Data

BRP, BR, WOZ, BRK, BAG, NHR and Centric Taxes

Technical design

The most common method is a calculation rule, consisting of multiplying a yardstick by a rate. In some cases there is a graduated approach, where the calculation rules applied also depend on the yardstick

External provider

Centric