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Maryann Senia

Maryann Senia
Real Estate Agent (Salesperson)
Garden City NY

Salesperson (NY: 40SE1009283)

REALTOR® 1 Active Listings Serves Nassau County, NY
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Contact Information

Brokerage
Keller Williams Realty Greater Nassau

Office Website
Office Address
400 Garden City Plz Ste 438
Garden City, NY  11530
(Nassau County)
Office Phone
516-873-7100
Office Fax
Mobile
516-317-0092
Email
mary************@*****.com
Show Email for $5

Service Areas

New Hyde Park: NY Elmont: NY North New Hyde Park: NY Queens: NY New York: NY Franklin Square: NY Stewart Manor: NY Floral Park: NY Bellerose: NY Bellerose Terrace: NY South Floral Park: NY Meacham: NY North Valley Stream: NY Alden Manor: NY Garden City South: NY Malverne Park Oaks: NY North Hills: NY Manhasset: NY Manhasset Hills: NY Lake Success: NY University Gardens: NY Thomaston: NY Plandome Heights: NY Flower Hill: NY Plandome Manor: NY Plandome: NY Munsey Park: NY Garden City Park: NY Hillside Manor: NY Herricks: NY Mineola: NY Garden City: NY Williston Park: NY East Williston: NY Searingtown: NY Albertson: NY Roslyn Heights: NY Westbury: NY Carle Place: NY Village of Garden City: NY Uniondale: NY Glen Cove: NY Glen Head: NY Old Westbury: NY Muttontown: NY Upper Brookville: NY Old Brookville: NY Glenwood Landing: NY Brookville: NY East Hills: NY Greenvale: NY Roslyn Harbor: NY East Meadow: NY Lattingtown: NY Matinecock: NY Locust Valley: NY Mill Neck: NY Barnum Island: NY Lido Beach: NY East Atlantic Beach: NY Long Beach: NY North Lynbrook: NY East Rockaway: NY Hewlett: NY Lynbrook: NY Malverne: NY Merrick: NY Bellmore: NY North Bellmore: NY North Merrick: NY Roslyn: NY Roslyn Estates: NY Jericho: NY Hicksville: NY New Cassel: NY Wantagh: NY Plainedge: NY Bethpage: NY Levittown: NY East Norwich: NY Oyster Bay: NY South Farmingdale: NY North Massapequa: NY Seaford: NY East Massapequa: NY Massapequa: NY North Wantagh: NY Great Neck: NY Melville: NY

About Maryann Senia

**Professional Real Estate Services Tailored to Your Needs**

When you choose this agent, you can expect a commitment to exceptional personal service and outstanding results. Whether you are looking to rent a cozy cottage or purchase a luxurious estate, clients receive unparalleled support throughout their real estate journey, complemented by a welcoming demeanor that aims to make the experience both enjoyable and stress-free.

For sellers, this agent ensures that your property is effectively marketed using a comprehensive array of resources available through Laffey Associates. This includes targeted internet advertising, print campaigns, neighborhood mailings, and both broker and public open houses, all designed to maximize exposure and attract potential buyers.

For buyers, this agent is dedicated to tirelessly searching for a home that aligns with your preferences and budget. From the initial mortgage pre-qualification to making an offer, arranging inspections, coordinating bank appraisals, and navigating the closing process, this agent will provide guidance and support at every stage.

As a lifelong resident of Long Island, this agent possesses extensive knowledge of communities from Queens to Montauk, covering a wide range of price points. With over 30 years of business experience and a deep understanding of the building and real estate sectors, this agent is well-equipped to assist clients effectively. Outside of real estate, personal interests include involvement in the equestrian community, sponsoring events, attending horse shows, as well as ceramics, home renovation, and decoration.

For a complimentary Comparative Market Analysis or to discuss a strategic marketing plan to sell your home, please reach out. This agent looks forward to connecting with you soon.

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

$1,420,531
Avg. Listing Price
From Maryann's portfolio
4.1 / 3.0
Avg. Beds/Baths
Typical property size
2,467 sf
Avg. Square Footage
Interior living space
3153
Active Listings
Current inventory

Nassau County's real estate market represents one of New York's most dynamic and valuable suburban landscapes, with properties consistently ranking among the highest-priced in the nation. This Long Island powerhouse attracts buyers seeking premium coastal living, top-tier school districts, and convenient Manhattan access, creating a marketplace where million-dollar homes are commonplace and inventory moves quickly despite premium pricing.

The county's real estate ecosystem supports 11,944 total actively licensed agents, with all 11,944 agents maintaining email contact information, reflecting the market's technological sophistication and professional connectivity. This robust agent network serves diverse communities from Hempstead's affordable starter homes to Old Westbury's sprawling estates, each requiring specialized market knowledge and relationship management.

Major Nassau County, New York Real Estate Markets

The Gold Coast communities of Manhasset, Port Washington, and Roslyn dominate Nassau's luxury segment, where historic estates and waterfront properties command prices exceeding $3 million. Meanwhile, established neighborhoods like Garden City, Rockville Centre, and Westbury offer premium suburban living with strong resale values, while emerging markets in Freeport and Uniondale present opportunities for first-time buyers and investors seeking appreciation potential.

Nassau's geography creates distinct micro-markets along the North Shore's prestigious waterfront communities versus the South Shore's beach-adjacent neighborhoods like Long Beach and Atlantic Beach. Each region maintains unique pricing dynamics, with proximity to transportation hubs like the Long Island Rail Road stations significantly impacting property values and market velocity throughout communities from Great Neck to Hicksville.

Market Dynamics and Geographic Complexity

Nassau County's real estate market operates on compressed inventory cycles, where desirable properties in sought-after school districts like Jericho or Syosset often receive multiple offers within days of listing. This competitive environment demands agents who understand hyperlocal nuances, from flood zone implications in waterfront areas to the impact of property taxes that can exceed $30,000 annually on premium homes.

The market's complexity extends beyond pricing to encompass co-op buildings in communities like Great Neck Plaza, new construction developments in previously industrial areas, and the ongoing conversion of larger estates into luxury subdivisions. These varied property types require agents with specialized expertise in everything from co-op board approval processes to new construction warranties and municipal approval procedures.

Why Businesses Need Nassau County, New York Agent Contact Data

Mortgage lenders, home inspection companies, and luxury service providers targeting Nassau County's affluent market need direct access to the county's extensive agent network to capture high-value transactions. With average home prices significantly exceeding national norms, each successful business relationship with local agents can generate substantial revenue through premium-priced services and repeat referral opportunities.

Technology companies, marketing firms, and financial services businesses benefit from connecting with Nassau's digitally-connected agent community to introduce innovative tools and services. Given the market's competitive nature and sophisticated clientele, agents actively seek resources that provide competitive advantages, creating opportunities for B2B companies offering everything from virtual staging software to client management platforms and investment analysis tools.

Current Property Listings

As of 2/9/2026, Maryann Senia has 1 property for sale in Garden City and surrounding areas.

$499,900

Listed 2025-09-11

21 Deville Dr
Selden, NY  11784

Beds: 4.0
Baths: 2.0
Sq Ft: 1,870
Lot: 8,712 sf
Single Family Map
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Current Property Rentals

Maryann Senia currently has no rental properties available in Garden City and surrounding areas. Check back later.