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Andrea Costello

Andrea Costello
Real Estate Agent (Salesperson)
Woodbury NY

Salesperson (NY: 40CO1003731)

24 years experience

REALTOR® 3 Active Listings Serves Nassau County, NY
View on Realtor.com

Contact Information

Brokerage
Compass Greater Ny Llc
Office Address
8285 Jericho Tpke Unit 16
Woodbury, NY  11797
(Nassau County)
Office Phone
516-517-4866
Office Fax
Mobile
516-457-6451
Email
andr***********@*******.com
Show Email for $5

Service Areas

Woodbury: NY Plainview: NY

About Andrea Costello

With over a decade of experience in the real estate industry, Andrea Costello has established herself as a trusted advisor for buyers, sellers, investors, and builders. Her commitment to integrity, exceptional negotiation abilities, and practical business insight have consistently enabled her to navigate even the most complex transactions successfully.

Andrea believes that effective communication is key to real estate success, adhering to the principle that "it's not what you say, but how you say it." She possesses a deep understanding of the industry's nuances, procedures, and technicalities, and excels at conveying this information in a clear and impactful manner. Her extensive background in advertising allows her to devise comprehensive marketing strategies, ensuring that her clients receive the high-quality service for which she is renowned.

Andrea finds immense satisfaction in seeing buyers delighted with their new homes and sellers pleased with the transaction process. Her goal is to create a seamless experience for all parties involved. Clients appreciate her dedication to staying informed about evolving market conditions, which has made her a reliable resource in the field.

Known for her professionalism, Andrea also fosters strong relationships with her clients, many of whom consider her a friend and continue to refer her services. For inquiries, Andrea can be reached at 516-457-6451 or via email at acostello@laffey.com.

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

$1,425,813
Avg. Listing Price
From Andrea's portfolio
4.1 / 3.0
Avg. Beds/Baths
Typical property size
2,471 sf
Avg. Square Footage
Interior living space
3105
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 2/13/2026, Andrea Costello has 3 properties for sale in Woodbury and surrounding areas.

$1,699,000

Listed 2026-02-04

65 Avery Rd
Woodbury, NY  11797

Beds: 5.0
Baths: 3.5
Sq Ft: 3,001
Lot: 43,734 sf
Single Family Map
View Full Details

$2,888,000

Listed 2026-01-10

26 Windemere Way
Woodbury, NY  11797

Beds: 6.0
Baths: 4.5
Sq Ft: 5,216
Lot: 23,958 sf
Single Family Map
View Full Details

$599,000

Listed 2026-01-30

11 Tooker Ave
Oyster Bay, NY  11771

Beds: 2.0
Baths: 1.5
Sq Ft: 1,181
Lot: 2,901 sf
Single Family Map
View Full Details

$699,000

Listed 2026-02-09

843 Madeira Blvd
Melville, NY  11747

Beds: 2.0
Baths: 1.5
Sq Ft: 1,150
Lot: 1,237 sf
Condos Map
View Full Details

Current Property Rentals

Andrea Costello currently has no rental properties available in Woodbury and surrounding areas. Check back later.