Cook County, Illinois · records as of 2026-09-04
Winnetka property records
Use property records to investigate changes in this town: assessments, recorded sales, permits, appeals and flood screening. Browse by street or record type, then check the available history and source dates. Municipal decisions are tracked separately in Neighborhood changes.
What the records reveal
See your town differently.
Homes assessed above their peers
At least 10% above comparable homes. About $4,600 a year of estimated tax on the gap for the median home in this group.
Explore on the map 2,738Older homes with no permit on file
Built before 1985, with no permit in the county feed. A starting point for research, not proof that work was never done.
Explore on the map 457Parcels in a FEMA flood hazard area
See the exact zone before a purchase or renovation. Follow the record back to FEMA's source.
Explore on the mapComputed from this town’s current release. Comparisons and tax amounts are estimates; each parcel shows its sources.
- Parcels
- 4,846
- 159 streets · 353 condo units
- Median assessed value
- $141,279
- Cook County Assessor
- Median est. market value
- $1,390,000
- model estimate
- Median year built
- 1947
- where on file
Streets
Recent sales
- 680 Green Bay Rd 3062026-06-22 · Trustee$625,000
- 1094 Fisher Ln2026-06-18 · Warranty$3,795,000
- 140 Sheridan Rd2026-06-17 · Other — 2-parcel deed, total $7,800,000undisclosed
- 140 Sheridan Rd2026-06-17 · Other — 2-parcel deed, total $7,800,000undisclosed
- 1241 Ash St2026-06-12 · Warranty$2,765,000
Buyer and seller names: Personal
Recent permits
- 36 Indian Hill Rd2025-12-03 · Addition · ADDITION AND INTERIOR REMODELRecheck
- 945 Ravine Dr2025-12-02 · Other · CABANAClosed
- 870 Heather Ln2025-12-02 · Other · POOL AND HOT TUBRecheck
- 603 Elm St2025-12-02 · Other · INTERIOR REMODEL - KITCHEN AND MUDROOMClosed
- 986 Grove St2025-12-01 · Other · OUTDOOR KITCHEN, PERGOLA, AND FIRETABLEClosed
Flood zones
FEMA NFHL, by parcel location.
Schools
Districts on the assessor record, by parcel count.
- SCH DISTRICT 36elementary4,593
- SCH DISTRICT 38elementary165
- SCHOOL DISTRICT 37elementary88
- NEW TRIER TOWNSHIP HIGH SCHOOL 203secondary4,846
Zoning (inferred)
Inferred from assessor class until a licensed city layer is connected.
- R-1Single-Family2,569
- R-2Single-Family1,527
- R-4Multi-Family353
- POSParks and Open Space209
- B-2General Commercial114
- R-3Two-Family74
Assessor neighborhoods
The Cook County Assessor groups parcels into valuation neighborhoods by code. Names are not published, so codes are shown as-is.
- Neighborhood 230221,868 · $137,428
- Neighborhood 23044726 · $128,535
- Neighborhood 23080458 · $246,559
- Neighborhood 23091446 · $122,000
- Neighborhood 23041327 · $110,000
- Neighborhood 23050267 · $167,000
- Neighborhood 23045244 · $113,000
- Neighborhood 23021120 · $211,634
- Neighborhood 23171116 · $698,609
- Neighborhood 23132104 · $154,112
- Neighborhood 2309292 · $93,092
- Neighborhood 2317065 · $200,174
- Neighborhood 231105 · $264,073
- Neighborhood 239994
- Neighborhood 231204
Coverage and freshness
- Assessor - Parcel Universe (Current Year Only)As of 2026-09-01
- Assessor - Parcel AddressesAs of 2026-09-01
- Assessor - Single and Multi-Family Improvement CharacteristicsAs of 2026-09-01
- Assessor - Residential Condominium Unit CharacteristicsAs of 2026-09-01
- Assessor - Assessed ValuesAs of 2026-09-01
- Assessor - Parcel SalesAs of 2026-09-01
- Board of Review Appeal Decision HistoryAs of 2026-06-09
- Assessor - AppealsAs of 2026-09-01
- Assessor - Property Tax-Exempt ParcelsAs of 2026-09-01
- Assessor - PermitsAs of 2026-09-01
- PTAX-203, 203-A, and 203-BAs of 2026-08-30
- PTAX-203 Additional PINsAs of 2026-08-30
- Cook County Parcels (current, beta)As of 2026-09-04
- FEMA NFHL Flood Hazard ZonesAs of 2026-09-04