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Every filter you can use when searching properties via Search Properties or Count Properties. Use the filter_id in your search request’s filters array.
Example
{
  "filters": [
    { "filter_id": "estimated_value", "operator": "range", "value": { "min": 200000, "max": 500000 } },
    { "filter_id": "is_owner_occupied", "value": false }
  ]
}
For operator syntax and value shapes, see Filters and Filter Values.
This list is also available programmatically via the List Filters endpoint — always free, no credits consumed.

Price

Filter IDNameTypeDescription
estimated_valueEstimated ValueNUMBEREstimated current market value in dollars

Equity & Value

Filter IDNameTypeDescription
estimated_equity_amountEstimated Equity AmountNUMBEREquity in dollars (value minus mortgage balances)
estimated_equity_percentageEstimated Equity PercentageNUMBEREquity as a percentage of total value

Beds & Baths

Filter IDNameTypeDescription
num_bedroomsNumber of BedroomsNUMBERTotal bedrooms (MLS data preferred, assessor fallback)
num_bathroomsNumber of BathroomsNUMBERTotal bathrooms (MLS data preferred, assessor fallback)

Building Information

Filter IDNameTypeDescription
year_builtYear BuiltNUMBERYear originally constructed
living_area_sqftLiving Area Square FeetNUMBERTotal heated/cooled living area in sq ft
num_unitsNumber of UnitsNUMBERTotal housing units (1 for SFR, more for multi-family)
num_buildingsNumber of BuildingsNUMBERSeparate buildings on the parcel
num_commercial_unitsNumber of Commercial UnitsNUMBERCommercial units within the property
building_styleBuilding StyleMULTI_SELECTArchitectural style (ranch, colonial, contemporary, etc.)
storiesStoriesMULTI_SELECTNumber of stories/levels
property_construction_typeProperty Construction TypeMULTI_SELECTPrimary construction material
Adobe, Brick, Concrete, Concrete Block, Dome, Frame, Heavy, Light, Log, Manufactured, Masonry, Metal, Mixed, Other, Steel, Stone, Tilt-up (pre-cast concrete), Wood

Property Type

Filter IDNameTypeDescription
property_typeProperty TypeMULTI_SELECTPrimary classification
additional_property_typesAdditional Property TypesMULTI_SELECTGranular sub-type (200+ options)
Agriculture, Apartment, Co-Op, Condominium, Development Site, Government/Institutional, Healthcare, Hospitality, Industrial, Mixed Use, Mobile Home, Multi Family, Office, Other, Retail, Single Family, Special Purpose, Townhouse, Vacant Land

Property Information

Filter IDNameTypeDescription
property_classProperty ClassificationMULTI_SELECTAssessor classification for tax purposes
Agricultural, Commercial, Exempt, Industrial, Office, Recreational, Residential, Vacant

Owner Type

Filter IDNameTypeDescription
is_owner_occupiedOwner OccupiedBOOLEANOwner lives in property as primary residence
has_absentee_ownersAbsentee OwnedBOOLEANOwner doesn’t live in the property
is_corporate_ownedCorporate OwnedBOOLEANOwned by corporation, LLC, or business entity
is_owned_by_trustOwned By TrustBOOLEANProperty held in trust structure
has_out_of_state_ownersOut of State OwnerBOOLEANOwner mailing address in different state
has_senior_ownersSenior OwnersBOOLEANOwner aged 65+
has_tired_landlordsTired LandlordsBOOLEANAbsentee/corporate owner for 15+ years
is_empty_nesterEmpty NesterBOOLEANMarried couple 50+, 2-person household
is_likely_to_moveLikely To MoveBOOLEANData signals suggest owner likely to relocate
is_vacant_homeVacant HomeBOOLEANProperty appears unoccupied
is_zombie_propertyZombie PropertiesBOOLEANAbandoned, in foreclosure, not yet bank-owned
is_bank_ownedBank OwnedBOOLEANREO by banks following foreclosure
is_pre_probateProbateBOOLEANImpending probate situation
is_intra_family_transferIntrafamily TransferBOOLEANRecent transfer between family members
ownership_entity_typeOwnership Entity TypeMULTI_SELECTEntity type
Bank, Corporation, Government, Individual, Trust

Mortgage

Filter IDNameTypeDescription
num_mortgagesNumber of MortgagesNUMBERCount of active mortgages (0-4)
is_free_and_clearFree and ClearBOOLEANNo outstanding mortgages or liens
has_adjustable_loansHas Adjustable Rate MortgageBOOLEANHas ARM or variable-rate financing
estimated_loan_to_value_percentageLoan To Value %NUMBERTotal loans divided by estimated value
mortgage_1_loan_balance1st Mortgage Loan BalanceNUMBERCurrent outstanding balance on first mortgage
mortgage_1_loan_interest_rate1st Mortgage Interest RateNUMBERCurrent interest rate as a percentage
mortgage_1_loan_term_months1st Mortgage Loan Term MonthsNUMBEROriginal term in months (typically 180, 240, or 360)
mortgage_1_loan_type1st Mortgage Loan TypeMULTI_SELECTLoan type (conventional, FHA, VA, jumbo, etc.)
mortgage_1_loan_due_date1st Mortgage Maturity DateDATEScheduled payoff date
mortgage_1_estimated_payment_amount1st Mortgage PaymentNUMBEREstimated monthly payment
has_mortgage_1_adjustable_rate_rider1st Mortgage Adjustable Rate RiderBOOLEANFirst mortgage has adjustable rate rider

MLS / Listing Status

Filter IDNameTypeDescription
is_mls_activeMLS ActiveBOOLEANCurrently listed as Active on MLS
is_mls_pendingMLS PendingBOOLEANOffer accepted, not yet closed
is_mls_contingentMLS ContingentBOOLEANSale dependent on conditions
is_off_marketOff MarketBOOLEANNot listed, no recent MLS activity
is_recently_soldRecently SoldBOOLEANSold within the last year
is_mls_listing_expiredExpired ListingsBOOLEANListing expired without selling
market_statusMarket StatusMULTI_SELECTCurrent MLS market status
mls_current_listing_priceCurrent Listing PriceNUMBERCurrent MLS asking price
mls_days_on_marketDays on MarketNUMBERDays actively listed on MLS
mls_last_initial_listing_dateInitial Listing DateDATEFirst listed date in current cycle
is_corner_lotIs Corner LotBOOLEANProperty is on a corner lot
Active, Contingent, Expired Listings, Off Market, Pending, Recently Sold

Sale History

Filter IDNameTypeDescription
last_sale_dateLast Sale DateDATEDate of most recent recorded sale
last_sale_priceLast Sale PriceNUMBERMost recent recorded sale price
last_sale_doc_typeLast Sale Transaction TypeMULTI_SELECTDocument type of last sale

Preforeclosure

Filter IDNameTypeDescription
is_preforeclosurePreforeclosuresBOOLEANCurrently in pre-foreclosure status
foreclosure_statusProperty Foreclosure StatusMULTI_SELECTCurrent foreclosure status
property_preforeclosure_statusProperty Preforeclosure StatusMULTI_SELECTPre-foreclosure status level
foreclosure_auction_dateAuction DateDATEScheduled foreclosure auction date
foreclosure_default_dateDefault DateDATEDate mortgage went into default
foreclosure_recording_dateDocument Recording DateDATEDate foreclosure docs were recorded
foreclosure_doc_typeForeclosure Document TypeMULTI_SELECTStage of foreclosure proceedings
Bank Owned, In Foreclosure, In Preforeclosure
Cancel Due to Length of Time and Auction Date, Notice of Default and Lis Pendens, Notice of Sale, Notice of Trustee’s Sale and Final Judgement, Recession Recording, REO, Rescission, Transfer

Tax

Filter IDNameTypeDescription
tax_amountTax AmountNUMBERAnnual property tax in dollars
is_tax_delinquentTax DelinquentBOOLEANDelinquent property taxes within last 2 years
tax_delinquent_yearTax Delinquent YearNUMBERMost recent year with delinquent taxes
tax_yearTax YearNUMBERTax year for current assessment

Assessor

Filter IDNameTypeDescription
assessed_total_valueTotal Assessed ValueNUMBERTotal assessed value for tax calculation
assessed_improvement_valueAssessed Improvement ValueNUMBERAssessed value of buildings only
assessed_land_valueAssessed Land ValueNUMBERAssessed value of land only
tax_assessment_yearAssessment YearNUMBERYear of latest assessment

Liens

Filter IDNameTypeDescription
has_active_lienActive LienBOOLEANAny active liens filed against property
has_hoa_lienHas HOA LienBOOLEANActive HOA lien for unpaid fees
num_total_active_liensNumber of Active LiensNUMBERTotal active liens count
lien_doc_typeLien Doc TypeMULTI_SELECTType of lien document filed

HOA

Filter IDNameTypeDescription
has_hoaPart of an HOA?BOOLEANWhether property is in an HOA
hoa_1_fee_amountHOA Fee AmountNUMBERPrimary HOA fee in dollars

Lot / Land

Filter IDNameTypeDescription
lot_size_acresLot Size AcresNUMBERTotal lot size in acres
lot_size_frontage_feetLot Size Frontage (Feet)NUMBERLot width along street
lot_size_depth_feetLot Size Depth (Feet)NUMBERLot depth from street
zoningZoningSTRINGLocal zoning designation
lot_codeLot CodeMULTI_SELECTLot characteristics type
lot_numberLot NumberSTRINGLot number within subdivision

Amenities

Filter IDNameTypeDescription
poolHas PoolMULTI_SELECTSwimming pool presence and type
garage_typeGarage TypeMULTI_SELECTGarage type and configuration
basementBasementMULTI_SELECTBasement presence and type
patioPatioMULTI_SELECTPatio presence and type
porchHas PorchMULTI_SELECTPorch presence and type
drivewayDrivewayMULTI_SELECTDriveway presence and type
has_deckHas DeckBOOLEANWhether the property has a deck
Daylight / Walkout, Daylight Partial, Full Basement, Improved Basement (Finished), No Basement, Partial Basement, Unfinished Basement, Unspecified Basement
Asphalt, Bomanite, Brick, Chat, Concrete, Gravel, Paver, Tile, Unknown

Systems & Utilities

Filter IDNameTypeDescription
air_conditioningAir ConditioningMULTI_SELECTAC system presence and type
heating_typeHeating TypeMULTI_SELECTPrimary heating system type
heating_fuelHeating FuelMULTI_SELECTHeating fuel type
sewerSewerMULTI_SELECTSewer service type
waterWaterMULTI_SELECTWater service type
has_fireplacesHas FireplacesBOOLEANProperty has fireplaces
Central, Chilled Water, Evaporative Cooler, Geo-Thermal, Office Only, Other, Packaged Unit, Partial, Refrigeration, Ventilation, Wall, Window/Unit
Butane, Coal, Electric, Gas, Geo-Thermal, None, Oil, Propane, Solar, Wood
Municipal, Septic, Storm
Cistern, Municipal, Spring, Well

Construction Materials

Filter IDNameTypeDescription
exterior_wallsExterior WallsMULTI_SELECTPrimary exterior wall material
interior_wallsInterior WallsMULTI_SELECTPrimary interior wall material
roof_typeRoof TypeMULTI_SELECTRoof design and structure type
roof_coverRoof CoverMULTI_SELECTRoof covering material
floor_coverFloor CoverMULTI_SELECTMain floor covering material
Bowstring Truss, Dome, Flat, Gable, Gable or Hip, Gambrel, Hip, Irr/Cathedral, Mansard, Prestress Concrete, Reinforced Concrete, Rigid Frm Bar Jt, Sawtooth, Shed, Steel Frame/Truss, Wood Truss

Condition & Quality

Filter IDNameTypeDescription
building_conditionBuilding ConditionMULTI_SELECTOverall condition grade
building_qualityBuilding QualityMULTI_SELECTConstruction quality grade
Average, Excellent, Fair, Good, Poor, Unsound, Very Good
A, A+, A-, B, B+, B-, C, C+, C-, D, D+, D-, E, E+, E-

Flood

Filter IDNameTypeDescription
flood_zoneFlood ZoneMULTI_SELECTFEMA flood zone classification
High Risk, High Risk Coastal Area, Low Risk, Moderate to Low Risk, Undetermined Risk