WWS points calculation

WWS points calculation for rental homes

Determine how many points a rental home has, and therefore which rent segment applies.

In short

The essentials at a glance

A WWS points calculation uses the Dutch housing valuation system (woningwaarderingsstelsel) to determine how many points a rental home has, based on floor area, facilities, outdoor space, WOZ value and energy label. Since the Affordable Rent Act (1 July 2024) the system applies up to and including 186 points. Labels E, F and G cost 4, 9 and 15 points.

Law: Affordable Rent Act (since 1 July 2024)
Social rent: up to 143 points
Mid-rent: 144–186 points
Label E / F / G: -4 / -9 / -15 points

Why a points calculation?

Under the Affordable Rent Act the maximum rent of homes up to 186 points is regulated. A landlord therefore needs to know the number of points before setting the rent. A well-founded calculation prevents disputes and rent reductions afterwards.

What counts?

Floor area of rooms and other spaces (measured under NEN 2580)
Kitchen and sanitary facilities
Outdoor space such as a balcony or garden
WOZ value
The energy label: a good label adds points, labels E, F and G cost points
Any monument status

Better energy label = more points

Because the energy label weighs so heavily, upgrading is often directly profitable for landlords. Going from label G to C means lower energy costs for the tenant and no more 15 deduction points. Read more in energy label and rent.

How we work

1
Data
We collect the address, WOZ value and current energy label.
2
Measuring
We measure the home and record facilities and outdoor space.
3
Calculation
You receive a well-founded calculation with points per item and improvement opportunities.

Frequently Asked Questions

Answers to the questions we are asked most about this topic.

1. How many points does a poor energy label cost?

Under the Affordable Rent Act, labels E, F and G cost 4, 9 and 15 points respectively in the housing valuation system.

2. Up to how many points does the WWS apply?

Since 1 July 2024 the system applies to rental homes up to and including 186 points: up to 143 points is social rent, 144 to 186 points mid-rent.

3. Do I need an energy label for the calculation?

The label is an important part of the calculation, and you must have a valid label when renting out anyway. Hasibo can combine the energy label and the points calculation in one visit.

4. How much does a WWS points calculation cost?

You receive a fixed-price quote upfront. For multiple homes we prepare a tailored price.

Last updated: 7 October 2026 · by Hasibo Ingenieurs & Adviesbureau

Sources: Aedes — Wet betaalbare huur van kracht sinds 1 juli