Calculate WWS points yourself or get an official assessment?
Calculating with the free Rent Tribunal tool or an online calculator gives a quick indication, but the result is only as good as your own measurements. An assessment after an on-site survey records floor area and facilities under NEN 2580 and the policy manual, making it a much stronger basis in a rent discussion or dispute.
Comparison at a glance
| Criterion | Rent Tribunal / government tool | Online calculators | Assessment after on-site survey |
|---|---|---|---|
| Reliability | Applies the official rules, but relies on your own input and measurements. | Varies; often simplified and not always up to date. | High: measured floor area, recorded facilities and current rules. |
| Legal weight at the Rent Tribunal | Not binding; your own calculation. | None; indicative only. | Not binding (the Rent Tribunal always decides itself), but a substantiated report with measurements and photos. |
| Time | Your own time for measuring and input. | A few minutes. | On-site survey; report within 5 working days. |
| Cost | Free. | Usually free. | From €220 excl. VAT. |
| When to use | First check of a single home. | Quick orientation or scenarios. | Setting rent, new lettings, doubt around 143/186 points or portfolio decisions. |
When to use what
- Use the government tool or a calculator to orient yourself and explore scenarios.
- Choose an official assessment when rent, sale or refinancing depends on the result.
- Always have the home measured near 143 or 186 points: a few square metres can decide the segment.
Have your home measured and assessed
Frequently asked questions
Updated on 16 October 2026
Official sources
- Huurcommissie — huurprijscheck en informatie
- Huurcommissie — Beleidsboek waarderingsstelsel zelfstandige woonruimte
This comparison is general information, not legal advice.