NOT LISTED FOR SALE

550 Oak St Winnetka, IL 60093

Estimated Value: $2,101,858 - $2,381,000

5 Beds
5 Baths
5,000 Sq Ft
$450/Sq Ft Est. Value

Sale Details

Date Sold: July 29, 2025

Last sale price $2,201,894 $440 Per Sq Ft

Est. 2% increase in value since last sale

Current estimated payment $14,797 / mo

7 Days on Market

Highlights

  • Fireplace in Primary Bedroom
  • Recreation Room
  • Wood Flooring
  • Greeley Elementary School Rated A
  • Traditional Architecture
  • Corner Lot

About This Home

As of July 2025

Opportunity to own and enhance a once-in-a-generation architecturally rich East Winnetka home built in 1894 and set on a beautifully landscaped .42-acre corner lot just steps from town, train, schools, Lake Michigan beaches and the Village Green. Bring your contractor with you to see this solidly built 5000 plus square foot, 5+ bedrooms, 3.2 baths vintage beauty that is surrounded by an iconic white "acorn" picket fence. This home is full of original character with soaring ceilings, fine millwork, original hardwood floors and five handsome wood-burning fireplaces. Expansive, light-filled rooms offer a flexible and gracious layout that could work perfectly for today's lifestyle. Watch the world go by on the oversized, serene, screened porch. Be welcomed by the gracious foyer leading to a stunning living room with custom bookcases and a grand dining room with a fireplace offering a meticulously preserved surround. At the heart of the home is the breathtaking family room affectionately known as "the library" distinguished by walls of built-in bookcases, lofty ceilings, rich woodwork, and a dramatic wall of windows that bathe the space in natural light. This extraordinary room opens to the spacious porch with bead board accents and overlooks the lush, expansive yard. A thoughtfully designed and potential open-concept kitchen connects seamlessly to the rear mudroom/butler's pantry and is flanked by two versatile spaces perfect for use as an office, food pantry or laundry room. Upstairs, the primary suite offers a peaceful retreat with its own sitting room, ample closet space, and a private en-suite bath. Four additional bedrooms and a well-appointed hall bath provide flexibility and endless opportunities for personalization. In addition to a separate alarmed and locked security room with large fireproof safe, the lower level adds the possibility for expanded living ideal for recreation, fitness, hobbies, a shop, or storage. The attic with its lofty ceilings has potential for future living space. Panoramic views abound from nearly every room, framing the private, beautifully landscaped grounds. The expansive yard, enhanced by mature plantings and tranquil green space, is perfect for entertaining, play, or quiet outdoor enjoyment. 550 Oak is more than just a home it is a beloved sanctuary where every detail has been thoughtfully preserved to honor its legacy while elevating its livability. Nestled in one of Winnetka's most distinguished neighborhoods and walkable to all, this is a truly exceptional opportunity to own a piece of Winnetka's storied history - ready to be reimagined for generations to come. *Note the house is in an estate and is being conveyed AS-IS. Please complete all inspections and contractor visits prior to any offer being submitted in order to waive the inspection contingency. Showings begin on Tuesday, June 24th.

Last Agent to Sell the Property

Paige Dooley

Compass License #475131775 Listed on: 06/22/2025

Compass

Last Buyer's Agent

Jacquelynn Gordon

Compass License #475193476

Compass

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $33,616

Year Built

  • Built in 1894

Lot Details

  • 18,295 Sq Ft Lot
  • Lot Dimensions are 140 x 127 x 88 x 10 x 52 x 137
  • Fenced
  • Corner Lot

Parking

  • 2 Car Attached Garage
  • Garage Door Opener
  • Driveway

Home Design

  • Traditional Architecture
  • Brick Foundation
  • Frame Construction
  • Asphalt Roof
  • Concrete Perimeter Foundation

Interior Spaces

  • 5,000 Sq Ft Home
  • 2-Story Property
  • Ceiling Fan
  • Wood Burning Fireplace
  • Mud Room
  • Family Room with Fireplace
  • Living Room with Fireplace
  • Sitting Room
  • Dining Room with Fireplace
  • 5 Fireplaces
  • Formal Dining Room
  • Home Office
  • Recreation Room
  • Play Room
  • Screened Porch
  • Storage Room
  • Home Gym
  • Wood Flooring

Kitchen

  • Range
  • Dishwasher

Bedrooms and Bathrooms

  • 5 Bedrooms
  • 5 Potential Bedrooms
  • Fireplace in Primary Bedroom

Laundry

  • Laundry Room
  • Laundry on main level
  • Gas Dryer Hookup

Unfinished Basement

  • Basement Fills Entire Space Under The House
  • Fireplace in Basement
  • Finished Basement Bathroom

Outdoor Features

  • Screened Patio

Schools

  • Greeley Elementary School
  • Carleton W Washburne Middle School
  • New Trier Twp High School Northfield/Wi

Utilities

  • Radiator
  • 200+ Amp Service
  • Lake Michigan Water
  • Gas Water Heater

Home Details

Home Type

Single Family

Est. Annual Taxes

$33,616

Year Built

Built in 1894

Lot Details

0.42 Acres

Parking

2

Listing Details

  • Property Type: Residential
  • Property Type: Detached Single
  • Type Detached: 2 Stories
  • Ownership: Fee Simple
  • ArchitecturalStyle: Traditional
  • New Construction: No
  • Property Sub-Type: 2 Stories
  • Year Built: 1894
  • Age: 100+ Years
  • Built Before 1978 (Y/N): Yes
  • Disability Access and/or Equipped: No
  • General Information: None
  • Rebuilt (Y/N): No
  • Rehab (Y/N): No
  • New Construction Y/N: No
  • Actual Status: Closed
  • SomePhotosVirtuallyStaged: No
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Appliances: Range, Dishwasher, Refrigerator
  • Basement: Unfinished, Full
  • Full Bathrooms: 3
  • Half Bathrooms: 2
  • Total Bathrooms: 5
  • Total Bedrooms: 5
  • Fireplace Features: Wood Burning
  • Fireplaces: 5
  • Flooring: Hardwood
  • LivingArea: 5000
  • Other Equipment: Ceiling Fan(s), Water Heater-Gas
  • Room Type: Mud Room, Bedroom 5, Office, Sitting Room, Screened Porch, Play Room, Exercise Room, Storage, Recreation Room, Other Room
  • Estimated Total Finished Sq Ft: 4496
  • Basement Bathrooms: Yes
  • Below Grade Bedrooms: 0
  • Dining Room: Separate
  • Fireplace Location: Family Room,Living Room,Master Bedroom,Basement,Dining Room
  • Total Sq Ft: 5983
  • Attic: Pull Down Stair,Unfinished
  • Flooring: Hardwood

Exterior Features

  • Construction Materials: Frame
  • Fencing: Fenced
  • Foundation Details: Brick/Mortar, Concrete Perimeter
  • Lot Features: Corner Lot
  • Patio And Porch Features: Screened
  • Roof: Asphalt
  • Waterfront: No

Garage/Parking

  • Garage Spaces: 2
  • Parking Features: Asphalt, Garage Door Opener, On Site, Garage Owned, Attached, Garage
  • ParkingTotal: 2

Utilities

  • Sewer: Public Sewer
  • Cooling: Small Duct High Velocity
  • Electric: 200+ Amp Service
  • Heating: Radiator(s)
  • Laundry Features: Main Level, Gas Dryer Hookup
  • Water Source: Lake Michigan

Condo/Co-op/Association

  • Association Fee Frequency: Not Applicable
  • Community Features: Sidewalks
  • Master Association Fee Frequency: Not Required

Fee Information

  • Association Fee Includes: None

Schools

  • Elementary School: Greeley Elementary School
  • High School: New Trier Twp H.S. Northfield/Wi
  • Middle/Junior School: Carleton W Washburne School

Lot Info

  • Lot Size Acres: 0.42
  • Lot Dimensions: 140 X 127 X 88 X 10 X 52 X 137
  • Lot Size: .25-.49 Acre
  • Special Assessments: N

Rental Info

  • Board Number: 2

Tax Info

  • Tax Annual Amount: 33616
  • Tax Year: 2023

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Jun 22, 2025
Closed on
Jul 18, 2025
Sold by
Mary C Allen Trust and Allen Mark C
Bought by
Donnelly Mark and Donnelly Elizabeth
Seller's Agent
Paige Dooley
Compass
Buyer's Agent
Jacquelynn Gordon
Compass
List Price
$1,599,000
Sold Price
$2,201,894
Premium/Discount to List
$602,894
37.7%
Views
47
Current Estimated Value
$2,249,465

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$47,571
Avg. Annual Appreciation
2.78%
Original Mortgage
$1,541,325
Outstanding Balance
$1,538,465
Interest Rate
6.38%
Mortgage Type
New Conventional
Estimated Equity
$711,000
Source: Public Records
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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
Donnelly Mark $2,202,000 Chicago Title
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Open Donnelly Mark $1,541,325
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
07/29/2025 07/29/25 Sold $2,201,894 +37.7% $440 / Sq Ft
06/30/2025 06/30/25 Pending -- -- --
06/22/2025 06/22/25 For Sale $1,599,000 -- $320 / Sq Ft
Source: Midwest Real Estate Data (MRED)

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $33,616 $217,000 $49,437 $167,563
2024 $33,616 $145,000 $60,423 $84,577
2023 $31,647 $145,000 $60,423 $84,577
2022 $31,647 $145,000 $60,423 $84,577
2021 $29,012 $111,791 $41,197 $70,594
2020 $28,550 $111,791 $41,197 $70,594
2019 $28,336 $121,512 $41,197 $80,315
2018 $34,102 $142,177 $35,704 $106,473
2017 $33,050 $142,177 $35,704 $106,473
2016 $31,478 $142,177 $35,704 $106,473
2015 $31,271 $127,099 $29,753 $97,346
2014 $29,539 $127,099 $29,753 $97,346
2013 $28,151 $127,099 $29,753 $97,346
Source: Public Records

Agents Affiliated with this Home

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Map

Source: Midwest Real Estate Data (MRED)

MLS Number: 12349818

Midwest Real Estate Data (MRED)

APN: 05-21-118-004-0000

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