All data available from the Houski API, including regular fields and expansion data sets.
Expansion data sets return sets rather than single values, like a property's assessments across multiple years.
Each field below shows its price and whether it can be sorted, filtered, or predicted, and how full it is in the country or region you choose.
Coverage
Houski gives every property the same set of fields in every country, so one query works the same everywhere. Choose your country or region to see how much of that set is filled there, and whether it is complete enough for your use. Data updated daily. Where no record exists, Houski estimates the value from the property and its neighbours.
The Filled column of the fields table below is each field's share of properties with a value in the place chosen, with how many properties that is. Each bar is the average fill of the fields that apply in its topic, or of the fields the datasets of its industry deliver. A field that cannot apply here, such as the listing date of a property never listed, is shown in the table but left out of every average. Every figure is also in one JSON file, updated daily.
Currency
Every money value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, and pounds sterling for a property in the United Kingdom, when United Kingdom properties are served. Houski applies no exchange rate, and the numbers carry no currency marker, so read the country_abbreviation field to know which currency you have.
The income bands in the demographic fields work the same way. A band such as 100,000 to 149,999 counts Canadian dollars in Canada and United States dollars in the United States, so the same band covers a different real income level in each country and the two percentages do not mean the same thing.
One piece of maths Houski does do: the census income figures are moved to today's dollars. The census reports income in the dollars of its own year, 2021 in Canada and 2024 in the United States, and Houski scales it forward with that country's own consumer price index.
Before you compare, total, or average any money value across countries, convert one side using an exchange rate of your choosing. Billing is separate from all of this and is always in United States dollars, whatever country the data came from.
Expansion data sets
Listing, rental, assessment, and permit data for properties across every country Houski covers. Expansion rows cost $0.001 each, whatever the row contains, so a full nested record costs the same as one field on the parent property.
Sale listings
Name
Description
Values
Sortable
Filterable
Source
expand_estimate_list_price
The price the property was listed for at the given date. It is considered an 'estimate' in our system because we may not have got the exact day of the intial listing or the price change correct, though it generally should be quite accurate.
For unlisted events backed by a public sale record, this is the actual price paid in the completed sale rather than an asking price.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
N/A
Yes
Yes
estimate
expand_listing_date
The date when this property was listed for sale on the market.
This timestamp marks the beginning of the property's listing period and serves as a reference point for calculating time-on-market metrics.
N/A
Yes
Yes
estimate
expand_listing_event
Identifies the specific market event that triggered the current status of this property listing.
This classification tracks significant changes to the property's market presence, providing insights into its listing history and price adjustment patterns.
Listed: Initial placement of the property on the market
Price increase: Upward adjustment of the asking price
Price decrease: Downward revision of the asking price
Unlisted: Removal of the property from active market listings (generally indicates a sale, but could also represent a withdrawn or expired listing where definitive public documentation may be unavailable). Where a public sale record backs the event, the price is the actual amount paid rather than an asking price
Sold: An official record of the transfer confirms the property changed hands on this date, so the date is the sale date and the price is the amount paid rather than an asking price
Listed
Price decrease
Price increase
Sold
Unlisted
Yes
Yes
estimate
Rental listings
Name
Description
Values
Sortable
Filterable
Source
expand_estimate_rent_monthly
The rental price that the property was listed for at the given date. It is considered an 'estimate' in our system because we may not have got the exact day of the initial rental listing or price change correct, though it generally should be quite accurate.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
N/A
Yes
Yes
estimate
expand_for_rent_what_is
Specifies which portion of the property is being offered for rent.
This field helps categorize rental listings based on whether the entire property or only specific sections are available.
This information can be used to filter rental properties based on tenant needs and living space requirements.
Entire property: The complete dwelling is available for rent
One room: A single bedroom within a shared property
Basement: A separate basement unit or suite
Main floor: The principal level of the property
Basement
Entire property
Main floor
One room
Yes
Yes
estimate
expand_listing_rent_date
The date when this property was listed for rent.
This timestamp marks the beginning of the property's rental listing period and serves as a reference point for calculating time-on-market metrics.
N/A
Yes
Yes
estimate
expand_listing_rent_event
Identifies the specific market event that triggered the current status of this property's rental listing.
This classification tracks significant changes to the property's market presence, providing insights into its listing history and price adjustment patterns.
Listed: Initial placement of the property on the rental market
Price increase: Upward adjustment of the rental price
Price decrease: Downward revision of the rental price
Unlisted: Removal of the property from active market rental listings (generally indicates the property was rented, but could also represent a withdrawn or expired rental listing)
Listed
Price decrease
Price increase
Unlisted
Yes
Yes
estimate
Assessments
Name
Description
Values
Sortable
Filterable
Source
expand_assessment_year
The calendar year in which the property value assessment was conducted.
This temporal reference point indicates when the official valuation was determined, providing context for understanding the assessment's recency and relevance to current market conditions.
N/A
Yes
Yes
document
expand_assessment_value
The most recent official property tax assessment value available for this property.
This figure is the official value a public authority sets on the property, usually as the base of property tax. It may not reflect current market value and is updated on a schedule that varies by jurisdiction.
The assessment year corresponding to this value is provided in the separate 'assessment_year' field. No value will appear if assessment data is unavailable for this property.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
By country
Canada, United States
In Canada and the United States this is the value on the property tax roll of the local assessment authority: a city, a county or a provincial assessment agency.
Netherlands
In the Netherlands this is the valuation of immovable property (WOZ value), which the municipality sets on every home each year for its taxes: by law the price the home would have fetched on the reference date.
Latvia
In Latvia this is the state's current official valuation, set on 1 January 2025 from 2022 market prices and held at no more than 80 percent of the average price level. Latvia still charges property tax on an older value built on 2012 and 2013 prices, so this figure is not yet its tax base.
Slovenia
In Slovenia this is the generalised market value the Surveying and Mapping Authority's mass valuation sets on every part of a building, the land under it counted in.
Norway
In Norway this is the tax value a municipality's property tax list gives the home, which Oslo publishes as a workbook. By law it is 70 percent of the home's valuation, which for most homes is the Tax Administration's estimate of its market value, so it is lower than the price the home would fetch.
South Korea
In South Korea this is the official price the Ministry of Land, Infrastructure and Transport sets every 1 January on each flat, row house and multi household house, the base of the property tax. A detached house among the Ministry's standard houses takes its standard house price, and other detached houses have no value here.
N/A
Yes
Yes
document
Permits
Name
Description
Values
Sortable
Filterable
Source
expand_permit_application_date
The official date when the application for this permit or license was submitted to the relevant authority.
This timestamp marks the initiation of the regulatory approval process and serves as a reference point for tracking application progress and processing timelines.
N/A
Yes
Yes
document
expand_permit_content
The content of the official permit or license document.
This field contains information from the actual permit or license issued by the regulatory authority, whether it's a development permit, building permit, business license, or other official authorization.
Houski removes telephone numbers, email addresses, and the owner, applicant and contact details of private individuals from the record text, and marks each removal in the text as [contact removed] or [name removed]. Contractor, builder and business names stay as issued.
N/A
Yes
Yes
document
expand_permit_id
The unique identifier assigned to an official license or permit associated with this property.
This reference number may represent a development permit, building permit, business license, or other regulatory authorization relevant to the property's use or development status.
The identifier can be used to verify approval status or look up detailed information about authorizations through relevant government agencies.
N/A
Yes
Yes
document
expand_permit_type
Categorizes the specific type of permit or license associated with this property.
This classification helps distinguish between different regulatory authorizations such as building permits, development approvals, business licenses, occupancy permits, or other official sanctioning documents.
N/A
Yes
Yes
document
expand_permit_value
The value of the work the applicant declared on the permit, in whole units of the currency of the property's country.
It is the figure for the whole job as the permit states it, such as the construction value of a new house or the cost of a renovation. It is not a permit fee and not a value the authority worked out for itself.
No value appears where the permit states none, which is the case for most licences and for the authorities that do not publish the figure.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
The tax year for which the reported property tax amount applies.
This field provides important temporal context for the property tax data, allowing for accurate assessment of tax history and potential future adjustments.
$0.0010
N/A
Yes
Yes
No
none
60.8%
86,852,058 properties
property_taxes_source
Indicates whether the property tax amount is the bill the taxing authority levied or a figure Houski worked out.
A levied bill is the amount the taxing authority charged the property for the year in the property taxes year field. An estimate is worked out from the property's assessed value and the tax rate of its area, taken from a listing, or produced by Houski's models.
Document: Property taxes are the bill the taxing authority levied, read from official records
Estimate: Property taxes are estimated by Houski from the assessed value and the local tax rate, from a listing, or by Houski's AI algorithms
$0.0001
Document
Estimate
User
Yes
Yes
No
none
Not measured
property_taxes
The annual property tax amount assessed on this real estate.
Property taxes are levied by government authorities and may vary based on location, property value, and applicable exemptions. This figure represents the most recently reported or estimated annual tax obligation.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
By country
Canada, United States
In Canada and the United States this is the bill the taxing authority levied where it publishes one, and otherwise an estimate from the local tax rate and the assessed value, or the bill a listing reports.
United Kingdom
In England, Wales and Scotland this is the annual council tax for the home's band, from its council's published Band D charge and the band ratios set in law, which in Scotland are higher than in England and Wales from band E up.
The band is the one the Valuation Office Agency lists for the home in England and Wales, or the one a listing of the home shows. The Band D charge is the council's average with every precept included, so a home in a parish or community that sets a higher or lower precept pays a little more or less. It is the full charge before any discount, exemption or reduction, such as the 25 percent discount for a single adult, and in Scotland it leaves out the water and sewerage charges billed with the council tax. The charging year runs from April to March, and property_taxes_year is the year it starts in.
South Korea
In South Korea this is an estimate of the yearly property tax the Local Tax Act levies on the home's official price: the property tax, the urban area part where the home's lot is zoned urban, and the local education tax, at the standard rates for an owner of more than one home. A household that owns only this home pays less.
Netherlands
In the Netherlands this is an estimate of the municipal property tax the owner pays on the home: its valuation of immovable property (WOZ value) for the tax year times the rate on homes the municipality set for that year. It leaves out the water board's charges and the municipality's sewerage and waste charges.
Norway
In Norway this is 0 where the municipality levies no property tax on homes. In Oslo it is the property tax the municipality levied on the home for the year, from the property tax list it lays out for public inspection, and 0 where the deduction every home takes covers the home's tax value. Homes in the other municipalities that tax homes have no value, because their tax value is not published.
$0.0010
N/A
Yes
Yes
No
property_taxes_source
61.0%
87,182,323 properties
maintenance_fee_include_water
Indicates whether water utility costs for the individual unit are covered as part of the regular maintenance fee payment.
This specifies if the owner's recurring maintenance fee includes water or if it is billed separately to the property owner.
$0.0010
No
Yes
Yes
Yes
No
estimate
100.0%
142,856,722 properties
maintenance_fee_include_heat
Indicates whether heating costs for the individual unit are covered as part of the regular maintenance fee payment.
This specifies if the owner's recurring maintenance fee includes heating or if it is billed separately to the property owner.
$0.0010
No
Yes
Yes
Yes
No
estimate
100.0%
142,856,722 properties
maintenance_fee_include_electric
Indicates whether electricity costs for the individual unit are covered as part of the regular maintenance fee payment.
This specifies if the owner's recurring maintenance fee includes electricity or if it is billed separately to the property owner.
$0.0010
No
Yes
Yes
Yes
No
estimate
100.0%
142,856,722 properties
maintenance_fee
The recurring fee the property owner pays to the owners' association, condominium corporation, building management or a similar body for shared maintenance and services.
This represents the regular contribution required for upkeep of common areas, shared amenities, building maintenance, and other collective services provided by the managing organization.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
By country
South Korea
In South Korea this is the monthly management fee the apartment complex reports, averaged over its latest twelve months and shared among its households: the common management charges and the charge to the long term repair reserve, without each household's own heating, hot water, gas, electricity and water, which are the energy and water cost fields.
United Kingdom, Czechia, Poland, Finland, Norway, Slovenia, Netherlands, France, Spain, Austria, Switzerland, Estonia, Latvia
In these countries no source states the fee, so a home that is not an apartment is 0 and an apartment takes an estimate. In Norway the monthly shared costs of a cooperative or company share are not read as this fee, because they also pay the housing company's shared debt.
$0.0010
N/A
Yes
Yes
No
estimate
100.0%
142,856,722 properties
has_expand_assessments
Indicates whether historical assessment data is available for this property.
Assessment history provides a record of past assessed values for the property across multiple years. This data is valuable for understanding how a property's officially assessed value has changed over time.
A value of 'true' indicates that the system has historical assessment records for this property. A value of 'false' indicates that no assessment history is available, which may occur in areas where multi-year assessment data is not published.
$0.0010
No
Yes
Yes
Yes
No
estimate
100.0%
142,856,722 properties
council_tax_band
The council tax band of a home in England, Wales or Scotland, the letter it is given from its value on 1 April 1991 in England and Scotland or 1 April 2003 in Wales, by the Valuation Office Agency in England and Wales and by the local assessor in Scotland. England's and Scotland's bands run from A to H, and Wales has a ninth band, I.
Each council sets a yearly charge per band, and band A pays the least. No value appears for a home outside England, Wales and Scotland, or for a home there whose band is not known.
$0.0010
N/A
Yes
Yes
No
document
0.0%
0 properties
Not counted in the averages
assessment_year
The calendar year in which the property's official assessed value was set.
This field indicates when the assessment_value was established and helps you understand how recent or outdated the tax assessment data might be.
By country
Netherlands
In the Netherlands this is the tax year the valuation of immovable property (WOZ value) is levied in, the year after its reference date: a value of a home's price on 1 January 2024 has the year 2025.
Latvia
In Latvia this is the year the official cadastral valuation took effect, which is set from the market prices of earlier years.
Slovenia
In Slovenia this is the year of the day the real estate register's values were exported, the generalised market value that stands in the register on that day.
South Korea
In South Korea this is the year of the official price, which the Ministry of Land, Infrastructure and Transport sets on 1 January of each year.
$0.0010
N/A
Yes
Yes
No
document
55.6%
79,457,430 properties
assessment_vs_estimate
The numerical difference between the property's official tax assessment value and its AI-estimated sale price.
This value is calculated by subtracting the estimated sale price from the tax assessment value (assessment_value - estimate_sale_price), expressed as an integer in the local currency.
\(\text{Value Difference} = \text{Tax Assessment Value} - \text{Estimated Sale Price}\)
A positive value indicates the property is assessed higher than its estimated market value, while a negative value indicates it's assessed below the market estimate. Null values appear when no assessment value is available.
$0.0010
N/A
Yes
Yes
No
calc'd from other fields
60.9%
87,010,679 properties
Not counted in the averages
assessment_value
The most recent official property tax assessment value available for this property.
This figure is the official value a public authority sets on the property, usually as the base of property tax. It may not reflect current market value and is updated on a schedule that varies by jurisdiction.
The assessment year corresponding to this value is provided in the separate 'assessment_year' field. No value will appear if assessment data is unavailable for this property.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
By country
Canada, United States
In Canada and the United States this is the value on the property tax roll of the local assessment authority: a city, a county or a provincial assessment agency.
Netherlands
In the Netherlands this is the valuation of immovable property (WOZ value), which the municipality sets on every home each year for its taxes: by law the price the home would have fetched on the reference date.
Latvia
In Latvia this is the state's current official valuation, set on 1 January 2025 from 2022 market prices and held at no more than 80 percent of the average price level. Latvia still charges property tax on an older value built on 2012 and 2013 prices, so this figure is not yet its tax base.
Slovenia
In Slovenia this is the generalised market value the Surveying and Mapping Authority's mass valuation sets on every part of a building, the land under it counted in.
Norway
In Norway this is the tax value a municipality's property tax list gives the home, which Oslo publishes as a workbook. By law it is 70 percent of the home's valuation, which for most homes is the Tax Administration's estimate of its market value, so it is lower than the price the home would fetch.
South Korea
In South Korea this is the official price the Ministry of Land, Infrastructure and Transport sets every 1 January on each flat, row house and multi household house, the base of the property tax. A detached house among the Ministry's standard houses takes its standard house price, and other detached houses have no value here.
$0.0010
N/A
Yes
Yes
No
estimate
60.9%
87,010,679 properties
assessment_land_value
The part of the property's tax assessment value that the assessing authority assigns to the land alone.
It is published only where the assessment roll states the land and the buildings separately, and it is on the same basis and for the same year as 'assessment_value'. Add it to 'assessment_improvement_value' to reach the total where the roll publishes both parts.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
$0.0010
N/A
Yes
Yes
No
document
55.7%
79,604,555 properties
assessment_improvement_value
The part of the property's tax assessment value that the assessing authority assigns to the buildings and other improvements on the land.
It is published only where the assessment roll states the land and the buildings separately, and it is on the same basis and for the same year as 'assessment_value'. A value of zero means the roll records land with no assessed building.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
$0.0010
N/A
Yes
Yes
No
document
54.3%
77,514,577 properties
area_comparable_property_tax_per_sq_m
The weighted average property tax per square meter from comparable properties in the immediate area.
This metric identifies properties of the same type with similar interior area (within 20% of this property's size) located within 1km, then calculates their annual property tax per square meter.
The final value is a distance-weighted average: closer properties have greater influence on the calculation. Every taxed property counts, whether or not it was ever listed for sale.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.
$0.0010
N/A
Yes
Yes
No
calc'd from other fields
100.0%
142,856,722 properties
area_comparable_assessment_value_per_sq_m
The weighted average assessment value per square meter from comparable properties in the immediate area.
This metric identifies properties of the same type with similar interior area (within 20% of this property's size) located within 1km, then calculates their assessment value per square meter.
The final value is a distance-weighted average: closer properties have greater influence on the calculation. Every assessed property counts, whether or not it was ever listed for sale.
This value is in the currency of the country the property is in: Canadian dollars for a Canadian property, United States dollars for an American one, pounds sterling for a property in England, Wales or Scotland, euros for one in Latvia, Slovenia, France, Spain, the Netherlands, Finland, Estonia or Austria, Czech koruna for one in Czechia, Polish zloty for one in Poland, Norwegian kroner for one in Norway, Swiss francs for one in Switzerland and South Korean won for one in South Korea. Houski applies no exchange rate, and the number itself carries no currency marker, so read the property's country_abbreviation field to know which currency you have. Before you compare, total, or average this value across countries, convert one side using an exchange rate of your choosing.