Starts a valuation. Either for an existing property via property_id
or for freeform input via characteristics - for example during an
initial consultation, before a property record exists.
Exactly one of property_id or characteristics must be set.
Example:prop_8f2c1a
Allowed values:initial_consultationsalerentalfinancinginheritance
Example:sale
Freeform property description, used when no property record exists.
Valuation created
Example:val_3e18
Example:prop_8f2c1a
Allowed values:initial_consultationsalerentalfinancinginheritance
Example:sale
Example:638000
Example:7376
How reliable the indication is.
Allowed values:lowmediumhigh
What the indication was derived from.
Example:2026-08-20T09:52:00Z
Example:val_3e18
Valuation
Example:val_3e18
Example:prop_8f2c1a
Allowed values:initial_consultationsalerentalfinancinginheritance
Example:sale
Example:638000
Example:7376
How reliable the indication is.
Allowed values:lowmediumhigh
What the indication was derived from.
Example:2026-08-20T09:52:00Z
Anonymized closed sales from the surrounding area. Addresses are
rounded to the street level so no individual sale can be traced back.
Example:10001
Allowed values:apartmenthouselandcommercial
Reference size; matches are searched within a ±20 percent corridor.
Example:86.5
Default:12
>= 3<= 36
Comparable sales