Erfpacht / ground lease
In Amsterdam, many homeowners own their home, but not the land underneath it. The land is owned by the municipality. The right to use that land is called erfpacht, or ground lease.

Canon
The canon is the payment you make for the use of the land. Some homeowners pay this every year. Others have bought it off for a fixed period or forever.

Continuing leasehold / voortdurende erfpacht
This is the older system. Your canon or buyout is fixed for a long period, often 50 or 75 years. At the end of that period, the municipality can recalculate the canon based on the rules and values that apply then.

Perpetual leasehold / eeuwigdurende erfpacht
This is the newer system. Homeowners were given the option to switch to perpetual leasehold, which could give more certainty about future erfpacht costs.

Transition / overstap
This means switching from the older continuing leasehold system to the newer perpetual leasehold system.

Favorable conditions / gunstige voorwaarden
These were the earlier, more favorable calculation conditions available to homeowners who applied before the original deadline. They could make a major difference to the final canon or buyout amount.

Remedial scheme / spijtoptantenregeling
This was a later scheme for some homeowners who had missed the original deadline or had not completed the transition. It gave some people another chance to use the earlier favorable conditions, but not everyone was helped by it.

WOZ value
The WOZ value is the official value the municipality assigns to your home. It is used for taxes and can also affect erfpacht calculations.

Land value / grondwaarde
The land value is the estimated value of the land under your home. In erfpacht calculations, this can be important because you pay for the use of the land, not the building itself.

Hefboomwerking / leverage effect
This is the effect where rising home or land values can lead to much higher erfpacht costs. Many homeowners did not understand how big this effect could be.

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