US Property Owner Lookup: NY, NYC, CT, Chicago, Philly, DC

Who owns this property? Search official property-assessment records by owner name, property address, ZIP code or parcel id and get one clean row per parcel: owner name(s), owner mailing address, market and assessed value, last sale date and price, year built, building and lot size, units, property class, and the parcel id you need for the county's own records.

The data comes straight from the open data that the governments publish themselves — no people-search sites, no login, no captcha:

Jurisdiction	Source	Owner names	Mailing address	Values	Last sale
New York State (every county outside NYC)	NYS Office of Real Property Tax Services, local assessment rolls	✓ (up to 4)	✓	market + assessed	–
New York City (5 boroughs)	NYC Dept. of City Planning PLUTO	✓	–	assessed	–
Connecticut (all towns)	CT Office of Policy and Management parcel + CAMA data	✓ + co-owner	✓	appraised + assessed	✓
Cook County IL / Chicago	Cook County Assessor	✓	✓	–	–
Philadelphia PA	Office of Property Assessment	✓ (2)	✓	market	✓
Washington DC	Office of Tax and Revenue (ITS public extract)	✓ (2)	✓	assessed + annual tax + balance due	✓
Norfolk VA	Office of the Real Estate Assessor	✓	–	total + land	✓
East Baton Rouge Parish LA	Assessor tax parcels	✓	✓	assessed + fair market	sale year

What you can use it for

• Real-estate investors and wholesalers: find who owns a property and where they get their mail (absentee owners have a different mailing address)
• Portfolio research: every parcel an LLC or a person owns across New York State, Connecticut, Philadelphia or DC
• Due diligence: confirm the owner of record, assessed value and last sale before a deal
• Prospecting for contractors, solar, roofing and property managers: owner lists for a ZIP or a town, filtered by value
• Tax research in DC: annual tax and current balance due per parcel

Why this one

• $10 per 1,000 properties ($0.01 each) — other owner-lookup actors charge $50 per 1,000
• Official sources only, linked in every row (sourceUrl), refreshed by the publishers on their own schedule (NY roll year shown as taxYear)
• One schema for every jurisdiction: the same field names whether the parcel is in Albany, Brooklyn, Hartford, Chicago or Philadelphia
• Any word order for names: "McHugh Peter" and "Peter McHugh" both work; add * for a prefix (Acme*)
• Forgiving addresses: "5th Ave" finds "5 AVENUE"; street types are compared loosely
• Value filters so you only pay for the properties you want

Input

Field	What it does
Owner name	Person or company; every word must appear in an owner name
Property address	House number + street
ZIP code	5 digits or a prefix
Parcel id	PIN / BBL / SSL / print key / account, partial works
City, town, county or borough	Narrow NY State, NYC, Connecticut and Cook County searches
Jurisdictions	Pick some or leave empty for all
Owner match	Fast (default) or contains-anywhere
Minimum / maximum value	Filter by market (or assessed) value
Max properties	Cap for the run

{ "ownerName": "Acme Holdings LLC", "jurisdictions": ["ny_state", "connecticut"], "maxResults": 50 }

{ "address": "1600 Pennsylvania Ave", "jurisdictions": ["washington_dc"] }

{ "zipCode": "06232", "minValue": 500000, "jurisdictions": ["connecticut"] }

Output

{
  "jurisdiction": "Washington DC (Office of Tax and Revenue)",
  "jurisdictionKey": "washington_dc",
  "state": "DC",
  "county": "District of Columbia",
  "city": "Washington",
  "parcelId": "1077 0130",
  "address": "1600 PENNSYLVANIA AVE SE",
  "zip": "20003",
  "ownerName": "BDC 1600 PENN LLC",
  "otherOwners": [
    "DNB 1600 PENN LLC"
  ],
  "mailingAddress": "4800 HAMPDEN LN STE 1200",
  "mailingCity": "BETHESDA MD 20814-2930",
  "propertyClass": "Residential-Apartment (Elevato",
  "useCode": "022",
  "neighborhood": "Old City 1",
  "lotAreaSqft": 17447,
  "assessedValue": 15983920,
  "assessedLandValue": 4845030,
  "annualTax": 135863.32,
  "taxBalanceDue": 0,
  "ownerOccupied": false,
  "lastSaleDate": "2017-02-17",
  "lastSalePrice": 26500000,
  "ward": "6",
  "sourceUrl": "https://opendata.dc.gov/datasets/integrated-tax-system-public-extract",
  "retrievedAt": "2026-10-30T10:47:11+00:00"
}

A New York State row adds county, taxYear, schoolDistrict, up to three otherOwners and exemptionCodes. Depending on the jurisdiction you also get yearBuilt, lotAreaSqft, buildingAreaSqft, livingAreaSqft, bedrooms, bathrooms, floors, residentialUnits, appraisedValue, lastSaleDate, lastSalePrice, zoning, latitude/longitude (NYC, Philadelphia), annualTax and taxBalanceDue (DC), floodZone (Baton Rouge), exemptionCodes (NY) a detailsUrl to the official property page where one exists, and for owner searches matchedOn (owner, or co-owner or mailing name when your name matched a second owner). Rows where the main owner matches come first, and a search across several jurisdictions mixes them evenly.

How much does it cost?

Pay per event: $0.01 per property returned plus $0.001 per run start. Searches that find nothing cost only the start. Higher Apify plans get tier discounts (Bronze −5%, Silver −10%, Gold and up −15%).

Worked examples (Free tier):

• One owner lookup across all jurisdictions, 12 parcels found: $0.12
• 500 properties in one Connecticut ZIP above $500k: $5.00
• A daily check of 20 addresses: about $6 a month

FAQ

Is it legal? Yes. Every source is official open data that the government publishes for public reuse (New York's Open Data portal, NYC Open Data, CT Open Data, Cook County's data catalog, OpenDataPhilly, Open Data DC, Norfolk and Baton Rouge open data). The actor reads their public APIs politely and never touches a login.

Can I use it for tenant, credit or employment screening? No. This is not a consumer report under the FCRA and must not be used for those purposes. Use owner data in line with the privacy and marketing laws that apply to you (for example do-not-call rules).

Why no phone numbers or emails? Assessor records do not contain them, and we do not add data from people-search sites.

How current is it? As current as each publisher's last update: NY State rolls yearly, PLUTO a few times a year, Cook County and Philadelphia yearly with updates, DC regularly. taxYear / dataVersion show what you got.

Why did my NYC address not match? PLUTO lists one address per tax lot; large buildings can be filed under another street number on the same lot. Search by owner or BBL instead.

More counties? Yes — tell us which ones in the Issues tab; jurisdictions with official open owner data are added regularly.

Tips

• Owner names are stored "LAST FIRST" in most places; any order works here, but use full words (or * for a prefix).
• Combine owner name and city to find a person's parcels in one town.
• Use minValue to skip cheap parcels and save money.

Integrations

Export as CSV, Excel or JSON, call it from the Apify API, Make, Zapier or n8n, or schedule it to watch a list of addresses.

Changelog

• 0.1 (Oct 2026): first release — 8 jurisdictions (NY State, NYC, Connecticut, Cook County, Philadelphia, DC, Norfolk, East Baton Rouge), owner/address/ZIP/parcel search, value filters.