27 Hillside Ave, Millburn Twp., NJ 07078 - Photo 1

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$5,990,000 Just Listed

For Sale
Active
Single Family
6 Beds
6 Full Baths
2 Partial Baths
12,000 Sq. Ft.
3 Car Garage
Updated 5 days ago

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Property Description

Set on nearly an acre along one of Short Hills' most coveted streets, this Georgian Colonial estate blends timeless architecture with refined modern luxury. A dramatic double-height foyer with a grand split staircase, coffered ceilings, and marble floors sets an elegant tone. Formal living and banquet dining rooms house two of six fireplaces that flow seamlessly for effortless entertaining. A butler's pantry leads to the chef's kitchen with a leathered marble island, Nestos marble surfaces, and top-tier Wolf, Sub-Zero, and Viking appliances, opening to a sunlit breakfast area with garden views. The family room, anchored by a stone fireplace, features walls of glass overlooking the terrace and pool. A well-designed mudroom connects to the heated three-car garage and includes a spacious laundry room, built-ins, and a secondary staircase. Upstairs, the primary suite offers a sitting room, tray ceiling bedroom, spa-like bath, and custom dressing room. Four additional en-suite bedrooms are accessed via a gracious gallery hall with a gas fireplace. The lower level features a fitness studio, pool changing rooms, steam shower, powder room, and kitchenette. In addition, to a movie theater, wine cellar, game room, and guest suite. Outdoors, a heated saltwater pool, gazebo, and manicured grounds complete this exceptional offering near downtown Millburn and the Short Hills train. Showings begin Wednesday April 29th.

Full Property Details

Full Property Details for 27 Hillside Ave

General

Price: $5,990,000
Taxes: $71,352 (2025)
Status: Active
Type: Single Family
Source: Garden_State
MLS ID: 4023575
Updated: 4/29/2026
Added to Site: 5 day(s) ago

Interior

Number of Rooms: 16
3rd Floor/Level 3: Attic
2nd Floor/Level 2: Bedroom 4+, Main Bath, Other Bath, Foyer, SittngRm
1st Floor/Level 1: Breakfast Room, Dining Room, Family Room, Foyer, GarEnter, Kitchen, Laundry Room, Living Room, MudRoom, Office, OutEntrn, Powder Room
Lower Level: Bedroom 1, Other Bath, Exercise Room, GameRoom, Leisure, Media Room, Utility Room, Walkout
Interior Features: Wet Bar, Blinds, Carbon Monoxide Detector, Cedar Closets, Drapes, Fire Alarm System, High Ceilings, Hot Tub, Security System, Smoke Detector, Stall Shower, Walk-In Closet
Number of Fireplaces: 6
Fireplace(s): Dining Room, Family Room, Foyer/Hall, Gas Fireplace, Library, Living Room
Appliances: Central Vacuum, Dishwasher, Disposal, Dryer, Freezer-Freestanding, Generator-Built-In, Instant Hot Water, Microwave, Gas Range and Oven, Refrigerator, Wall Oven(s) - Electric, Washer, Water Filter, Wine Refrigerator
Flooring: Carpeting, Marble, Stone, Tile, Wood

Rooms

Bathrooms

Total Bathrooms: 8
Full Bathrooms: 6
Half Bathrooms: 2

Bedrooms

Total Bedrooms: 6
Primary Bedroom: Dressing Room, Full Bath, Sitting Room, Walk-In Closet
Bedroom 1: 25 x 17, Second
Bedroom 2: 16 x 18, Second
Bedroom 3: 17 x 16, Second
Bedroom 4: 14 x 14, Second

Other Rooms

Living Room: 16 x 24, First
Family Room: 25 x 23, First
Kitchen: Breakfast Bar, Center Island, Separate Dining Area, 16 x 21, First
Dining Room: Formal Dining Room, 18 x 24, First
Den: 16 x 21, First
Breakfast: 14 x 15, First
SittngRm: 16 x 16, Second
Bedroom: 14 x 17, Second
Media Room: 17 x 23, Basement

Additional Information

Shared Amenities: Exercise Room, Pool-Outdoor
Pool: Yes
Pool Description: Heated, In-Ground Pool

Exterior

Exterior Features: Barbecue, Gazebo, HotTub, Patio, FencPriv, Sprinklr
Color: Brick

Parking

Garage: Yes
Garage Spaces: 3
Garage Description: Built-In Garage, Garage Door Opener, Oversize Garage

Location

County: Essex
Subdivision: Hartshorn
Driving Directions: Old Short Hills Road or Hobart Avenue to Hillside

School Information

Elementary School: HARTSHORN
Middle School: MILLBURN
High School: MILLBURN

Community

Pets Allowed: Yes

Heating & Cooling

Cooling Type: 4+ Units, Central Air Conditioning, Multi-Zone Cooling
Heating Type: 4+ Units, Forced Hot Air, Multi-Zone, Radiant - Hot Water
Heating Fuel: Natural Gas
Water Heater: Gas

Utilities

Sewer: Public Sewer, Sewer Charge Extra
Water: Public Water
Utility Description: Electric, Natural Gas, Cable TV Available, Garbage Included

Structural Information

Architectural Style: Colonial
Basement: Yes
Basement Desc.: Finished, Full, Walk-Out
Roof: Slate/Imitation Slate
Square Feet: 12,000
Year Built: 2001

Lot Features

Lot Size (Acres): 0.92
Lot Size: 145 x 275
Driveway/Sidewalk: 1 Car Width, Blacktop, Circular, Paver Block
Lot Description: Level Lot

Financial Considerations

Assessment Amount: $3,600,000
Land Assmt: $1,097,600
Tax Amount: $71,352
Tax Year: 2025

Disclosures and Reports

Ownership: Fee Simple
Exclusions: personal furniture and art
Disclosures: Yes
APN: 1612-01505-0000-00004-0000-
Block: 1505
Lot Number: 4

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Schools

Schools serving 27 Hillside Ave

School District:Millburn Township School District

Name	Grades	Distance
Hartshorn Elementary School 400 Hartshorn Drive, Millburn, NJ 07078	K-5	1.5 mi
Millburn Middle School 25 Old Short Hills Rd, Millburn, NJ 07041	6-8	0.3 mi
Millburn Sr High School 462 Millburn Ave, Millburn, NJ 07041	9-12	0.7 mi

Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 27 Hillside Ave Get Price Alerts and Save Property

Date

Details

Price

Change

Source

4/29/2026

Listed

$5,990,000

44.34%

MLS

4/27/2015

Sold

$4,150,000

—

Public Record

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Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History

Tax History for 27 Hillside Ave

Year

Property Taxes

Change

Tax Assessment

Change

2024

$71,352

2%

$3,600,000

—

2022

$69,948

—

$3,600,000

—

2021

$69,768

—

$3,600,000

-6%

2021

$69,768

-11%

$3,850,000

-6%

2018

$78,315

2%

$4,117,500

—

2017

$76,421

15%

$4,117,500

34%

2016

$66,307

-17%

$3,078,300

-25%

2019

$79,468

23%

$4,117,500

34%

2015

$64,798

4%

$3,078,300

—

2014

$62,059

—

$3,078,300

—

Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost

Estimate the Cost for 27 Hillside Ave

27 Hillside Ave, Millburn Twp., NJ 07078 (MLS# 4023575) is a Single Family property with 6 bedrooms, 6 full bathrooms and 2 partial bathrooms. 27 Hillside Ave is currently listed for $5,990,000 and was received on April 29, 2026. Want to learn more about 27 Hillside Ave? Do you have questions about finding other Single Family real estate for sale in Millburn Twp.? You can browse all Millburn Twp. real estate or contact a Coldwell Banker agent to request more information.

27 Hillside Ave Millburn Twp., NJ 07078