Juliette Janssens

New York NY

Sothebys International Realty

31 Closed Sales

$180.3M Total Value

$2.8M - $16.5M Price Range

$5.8M Average Price

Prior five years

About Juliette

A lifelong New Yorker with a true passion for real estate, Juliette Janssens is a Senior Global Real Estate Advisor and Associate Broker who uses her exceptional knowledge and creative negotiating and marketing skills to help clients realize their dreams. To her, a home is more than an investment—it’s a vital part of a person’s well-being.

Juliette attended the Johns Hopkins University and the University of Colorado and has a background in fashion and publishing. She traveled and lived in locations across the country before returning to New York, putting her keen eye for style, her deep Manhattan roots, and her love of real estate to work. She joined Sotheby’s International Realty in 2004 and quickly established a reputation for comprehensive market knowledge, sharp analytical skills, and dedication to the industry and her city. Clients and colleagues alike admire her open and honest communication, patience, and discretion.

For more than a decade, Juliette has partnered with fellow broker Allison Koffman. Their business acumen, discernment, in-depth familiarity with the city’s neighborhoods, and sophisticated marketing materials set them apart. Their expertise covers all areas of Manhattan, and their understanding of the nuances of New York real estate allows them to help clients navigate that daunting world with ease. In addition to working with buyers and sellers, they have successfully represented new development projects on the Upper East Side, providing them with unique insights that expedite successful deals. Their trusted partners in other markets facilitate transactions outside the Manhattan area. Juliette and Allison are consistently ranked as top producers at Sotheby’s International Realty, with nearly a billion in sales.

Juliette lives on the Upper East Side.

Home Types: Co-op, Condo, House

Years of Experience: 12

Education: Johns Hopkins University University of Colorado, Boulder

Transaction History

1 Year
2 Year
5 Year

Neighborhoods Juliette Has the Most Experience In

Juliette's Recent Active Listings

$3,600,000
- 3 Beds
- 2 Baths
- 2,346 Sq Ft
150 E 72nd St

Unit 6S

New York, NY
Bring Your Architect and Create Your Dream HomePerfectly positioned in the heart of the Upper East Side, 150 East 72nd Street is an intimate, luxury condominium that blends timeless prewar elegance with modern sophistication. Originally designed in 1914 by the renowned architectural firm Schwartz & Gross and thoughtfully reimagined a century later, the building retains its classic charm while

Juliette Janssens Sothebys International Realty

Co-Listing Agent

$17,500,000
- 3 Beds
- 3.5 Baths
- 3,779 Sq Ft
151 E 58th St

Unit PH54E

New York, NY
Perched on the 54th floor of One Beacon Court—New York’s most prestigious modern landmark with a private circular driveway, designed by renowned architect Cesar Pelli—this stunning penthouse, meticulously crafted by internationally acclaimed interior designer Jacques Grange, occupies the coveted front corner and offers commanding panoramic views. Forty floor-to-ceiling windows and soaring

Juliette Janssens Sothebys International Realty

Co-Listing Agent

$2,795,000
- 2 Beds
- 2 Baths
- 1,295 Sq Ft
40 E 78th St

Unit 5F

New York, NY
Fabulous two Bedroom | two Bath condominium in prime Upper East Side location, one block from Central Park. This fully renovated, bright and sunny residence measures approximately 1,295 square feet with all rooms facing west over Madison Avenue. Featuring a wonderful layout, this home has an expansive Living | Dining Room that gives the space an open, airy feel. A well-appointed chef's Kitchen

Juliette Janssens Sothebys International Realty

Co-Listing Agent

$6,850,000
- 3 Beds
- 3.5 Baths
- 2,833 Sq Ft
245 W 14th St

Unit PH

New York, NY
The crown jewel of the Village Green West condominium is a stylish, three-Bedroom, three and a half Bath, duplex Penthouse with a fabulous private roof deck as well as two additional balconies. With both northern and southern exposures, this 2800+ square foot apartment offers breathtaking, iconic views of the Freedom Tower, Hudson River, Hudson Yards and beyond.A key-locked elevator opens

Juliette Janssens Sothebys International Realty

Co-Listing Agent

$6,850,000
- 4 Beds
- 5.5 Baths
857 5th Ave

Unit 7th Floor

New York, NY
Full floor residence boasting SPECTACULAR above tree line Central Park views. Perfectly situated on the corner of 5th Avenue and 67th Street, this expansive 9 room home, complete with terrace, offers over 40 feet of frontage facing Central Park. Enter this 4 Bedroom/5.5 Bath home from your own private elevator landing. You are immediately greeted by an impressive gallery from which everything

Juliette Janssens Sothebys International Realty

$5,500,000
- 3 Beds
- 2.5 Baths
- 2,316 Sq Ft
150 E 72nd St

Unit 7-S

New York, NY
Perfectly situated in the heart of the Upper East Side, 150 East 72nd Street is a boutique, luxury condominium. Originally designed by Schwartz & Gross in 1914 and transformed a century later, the building has retained its classic prewar charm while seamlessly incorporating the state-of-the-art luxuries desired for modern living.Enter this fabulous 3 Bedroom, 2.5 Bath home through a private

Juliette Janssens Sothebys International Realty

$4,600,000
- 4 Beds
- 4 Baths
115 Central Park W

Unit 9A

New York, NY
Exemplifying classic pre-war elegance, this spectacular and sprawling, sun-flooded home, at the storied Majestic, is perfectly suited for both comfortable living and grand entertaining. Bring your architect and create your dream home. The apartment features wonderful original details, generous room sizes, bright open exposures and a flexible layout. Accessed via a semi-private elevator landing, a

Juliette Janssens Sothebys International Realty

$2,695,000
- 3 Beds
- 2 Baths
175 E 79th St

Unit 3A

New York, NY
Perfectly situated in one of the most desirable Upper East Side locations, this triple-mint condition, three-Bedroom home has it all. Upon entry, you are immediately greeted by an oversized Living/Dining room, with sunny Southern exposures and high beamed ceilings. There is a decorative fireplace that anchors the room which is perfect for both formal entertaining and casual, comfortable living.

Juliette Janssens Sothebys International Realty

Co-Listing Agent

$1,750,000
- 2 Beds
- 1.5 Baths
- 1,073 Sq Ft
310 W End Ave

Unit 11C

New York, NY
Welcome to this bright, airy, and beautifully appointed 2-bedroom, 1.5-bath corner residence on a high floor in a distinguished, pre-war cooperative on the Upper West Side. This sun-filled home offers open western exposures and excellent natural light throughout the day. A spacious entry foyer with two large closets sets the stage, leading into a warm, loft-style living and dining area framed by

Juliette Janssens Sothebys International Realty

Agent License #30JA0966185

Juliette Janssens

(855) 691-6015

Juliette Janssens

About Juliette

Transaction History

Seller Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Seller Deals

Production Over Time

5 Year View

Neighborhoods Juliette Has the Most Experience In

Juliette's Listings and Deals

Juliette's Recent Active Listings