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Diane Mascellaro

Diane Mascellaro
Real Estate Agent (Salesperson)
Smithtown NY

Salesperson (NY: 10401328547)

7 years experience

REALTOR® 4 Active Listings Serves Suffolk County, NY
View on Realtor.com

Contact Information

Brokerage
Exit Realty Achieve

Office Website
Office Address
956 W Jericho Tpke Ste 1
Smithtown, NY  11787
(Suffolk County)
Office Phone
631-543-2009
Office Fax
Mobile
631-872-5217
Email
dian*************@*****.com
Show Email for $5

Service Areas

Captree Island: NY Oak Island: NY West Gilgo Beach: NY Gilgo Beach: NY Oak Beach: NY Babylon: NY Kismet: NY Fair Harbor: NY West Bay Shore: NY North Bay Shore: NY West Islip: NY Brightwaters: NY Point O Woods: NY Islip: NY Bay Shore: NY Baywood: NY Brentwood: NY Central Islip: NY Bohemia: NY Sayville: NY Commack: NY Smithtown: NY Dix Hills: NY East Northport: NY Fort Salonga: NY Elwood: NY Kings Park: NY St. James: NY Nesconset: NY Hauppauge: NY Village of the Branch: NY East Islip: NY Great River: NY Oakdale: NY West Sayville: NY Islip Terrace: NY Selden: NY Medford: NY Holtsville: NY Farmingville: NY Coram: NY Middle Island: NY Yaphank: NY North Bellport: NY Gordon Heights: NY Holbrook: NY Centereach: NY Ronkonkoma: NY Lake Ronkonkoma: NY Stony Brook: NY Head of the Harbor: NY Nissequogue: NY West Babylon: NY

About Diane Mascellaro

Diane is a committed residential sales agent who consistently delivers exceptional service to clients navigating the buying and selling process in her local market. Her approach is characterized by a genuine warmth, honest guidance, and a commitment to transparent communication, all of which contribute to a seamless and enjoyable experience for her clients.

Distinguished by her strong work ethic and hands-on support, Diane employs her sharp problem-solving abilities to achieve successful outcomes. She specializes in real estate transactions across Long Island, with a particular passion for assisting first-time homebuyers in realizing their aspirations.

A native of Queens, NY, and raised in Ronkonkoma, Diane holds a degree from SUNY Farmingdale in Dental Hygiene. She is a licensed New York Real Estate Salesperson and is affiliated with the New York State Association of Realtors, the Long Island Board of Realtors, and the National Association of Realtors.

Having resided and worked in Smithtown for over 25 years, Diane possesses extensive knowledge of the local real estate landscape. An avid boater on the South Shore, she is dedicated to helping clients find homes and neighborhoods where they can thrive, while also ensuring sellers receive optimal value for their properties. To facilitate a smooth transaction, she collaborates with a network of skilled professionals, including stagers, painters, designers, handymen, and inspectors.

Diane is married and has two daughters in college. She is actively engaged in her community and has a history of involvement with the local school district. In her leisure time, she enjoys boating, traveling, exercising, playing beach volleyball, entertaining, and exploring new dining experiences.

Suffolk County, NY Real Estate Market Analysis (Single Family Homes)

$2,180,503
Avg. Listing Price
From Diane's portfolio
4.0 / 3.1
Avg. Beds/Baths
Typical property size
5,355 sf
Avg. Square Footage
Interior living space
4631
Active Listings
Current inventory

Suffolk County's real estate market represents one of New York's most dynamic and diverse property landscapes, stretching across Long Island's eastern expanse from bustling suburban communities to exclusive waterfront estates. With 9,107 total actively licensed agents serving the region, this market demonstrates remarkable depth and professional expertise, reflecting the county's complex mix of residential neighborhoods, commercial districts, and luxury coastal properties that attract buyers from across the metropolitan area.

The sheer scale of professional representation in Suffolk County reveals a market that operates at institutional levels, where every one of the 9,107 agents maintains email connectivity, enabling rapid communication and deal coordination across multiple price points and property types. This extensive network of licensed professionals supports everything from first-time homebuyer transactions in communities like Brentwood and Central Islip to multi-million dollar estate sales in the Hamptons, creating a sophisticated ecosystem that responds quickly to market shifts and seasonal demand patterns.

Major Suffolk County, New York Real Estate Markets

The county's real estate activity concentrates heavily around several key metropolitan areas, with Huntington, Babylon, and Islip serving as major commercial and residential hubs that drive significant transaction volume. These central markets feature diverse housing stock ranging from post-war suburban developments to newly constructed luxury communities, while coastal areas like Southampton, East Hampton, and Montauk command premium pricing due to their proximity to beaches and seasonal rental potential that attracts both permanent residents and investment buyers.

Emerging markets in communities such as Patchogue, Riverhead, and Greenport have experienced surprising growth as buyers seek more affordable alternatives to traditional high-end areas, creating opportunities for agents specializing in value-oriented transactions and redevelopment projects. The contrast between these developing markets and established luxury zones like Sag Harbor creates multiple distinct real estate ecosystems within the county, each requiring specialized knowledge and different marketing approaches.

Market Dynamics and Geographic Complexity

Suffolk County's real estate market operates with distinct seasonal patterns that significantly impact pricing and inventory levels, particularly in eastern coastal communities where summer demand can drive rental rates up by 300% compared to winter months. This seasonality creates unique challenges for agents who must navigate fluctuating buyer preferences, vacation home purchases, and the complex interplay between permanent resident sales and investment property transactions that define much of the county's higher-end market activity.

Geographic complexity adds another layer of market sophistication, as properties just miles apart can vary dramatically in value due to school district boundaries, flood zone designations, and proximity to transportation corridors like the Long Island Rail Road. Agents must possess hyperlocal expertise about everything from septic regulations in rural areas to co-op board requirements in more developed communities, making market knowledge extremely specialized and location-dependent.

Why Businesses Need Suffolk County, New York Agent Contact Data

Companies serving the real estate industry can leverage Suffolk County's comprehensive agent database to reach professionals handling transactions across dramatically different price points and property types, from affordable housing initiatives to luxury estate sales exceeding $10 million. This diversity creates opportunities for businesses offering everything from basic transaction management tools to sophisticated wealth management services, as agents require different solutions depending on their specific market segments and client demographics.

The complete email accessibility across all 9,107 licensed agents enables businesses to execute targeted marketing campaigns that can be customized by geographic area, specialization, or transaction volume, allowing for precise audience segmentation that maximizes response rates and conversion potential in this competitive and professional market environment.

Current Property Listings

As of 2/13/2026, Diane Mascellaro has 4 properties for sale in Smithtown and surrounding areas.

$439,000

Listed 2025-12-08

380 Woodbridge Dr Unit D
Ridge, NY  11961

Beds: 2.0
Baths: 2.0
Sq Ft: 1,147
Lot: 1,385 sf
Condos Map
View Full Details

$469,999

Listed 2025-12-13

11 Dianne Ave
Centereach, NY  11720

Beds: 4.0
Baths: 1.0
Sq Ft: 1,050
Lot: 9,148 sf
Single Family Map
View Full Details

$815,000

Listed 2025-09-17

77 Woodland Rd
Miller Place, NY  11764

Beds: 3.0
Baths: 2.0
Sq Ft: 1,800
Lot: 19,166 sf
Single Family Map
View Full Details

$549,000

Listed 2025-10-17

175 Pleasant St
Ronkonkoma, NY  11779

Beds: 3.0
Baths: 1.0
Sq Ft: 1,320
Lot: 21,780 sf
Single Family Map
View Full Details

Current Property Rentals

Diane Mascellaro currently has no rental properties available in Smithtown and surrounding areas. Check back later.