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Tammy Elaine Martellini

Tammy Elaine Martellini
Real Estate Agent (Broker)
McKinney TX

Broker (TX: 0593112)

19 years experience

REALTOR® 0 Active Listings Serves Collin County, TX
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Contact Information

Brokerage
Texas Elite Realty

Office Website
Office Address
3900 S Stonebridge Dr Ste 1002
McKinney, TX  75070
(Collin County)
Office Phone
214-592-9600
Office Fax
Mobile
214-592-7391
Email
tamm*@***************.com
Show Email for $5
Website

Service Areas

Plano: TX Frisco: TX McKinney: TX Lowry Crossing: TX Fairview: TX Allen: TX New Hope: TX Princeton: TX Weston: TX

About Tammy Martellini

With nine years of experience as a Texas Realtor, this professional is deeply committed to the real estate industry. Having personally bought, sold, and built numerous homes, they are now dedicated to assisting others in achieving their homeownership aspirations.

On a personal note, they are a proud mother of two boys and have been happily married for 21 years. Family time is cherished, and they enjoy gardening, fishing, reading, and creating memorable experiences together.

Rather than identifying solely as a listing agent, this Realtor focuses on sales, employing effective marketing and staging strategies to ensure properties are sold efficiently. They prioritize understanding clients' needs in the home-buying process, providing timely updates on listings and making themselves readily available to explore potential homes, ensuring clients never miss out on their ideal property.

Collin County, TX Real Estate Market Analysis (Single Family Homes)

$595,461
Avg. Listing Price
From Tammy's portfolio
3.9 / 3.2
Avg. Beds/Baths
Typical property size
2,692 sf
Avg. Square Footage
Interior living space
7951
Active Listings
Current inventory

Collin County, Texas represents one of the most dynamic and rapidly expanding real estate markets in the Dallas-Fort Worth metroplex, driven by explosive population growth, corporate relocations, and sustained economic development. This northern Dallas suburb has transformed from rural farmland into a sophisticated collection of master-planned communities, luxury developments, and thriving commercial districts that consistently rank among the nation's fastest-growing counties.

The county's real estate landscape is supported by an extensive network of 8,789 total actively licensed agents, with all 8,789 agents maintaining email contact information, creating one of the most connected and accessible real estate professional networks in Texas. This robust agent presence reflects the market's complexity and the high level of transaction activity across diverse property segments ranging from luxury estates to entry-level condominiums.

Major Collin County, Texas Real Estate Markets

Plano anchors the county's real estate activity as the largest city, featuring established neighborhoods like West Plano's luxury corridor alongside emerging developments in East Plano. Frisco has emerged as a premium destination with master-planned communities such as Starwood and Phillips Creek Ranch, while McKinney combines historic charm in its downtown district with sprawling new subdivisions like Adriatica and Craig Ranch that command premium pricing.

Allen, Richardson, and Wylie round out the major residential markets, each offering distinct characteristics from Allen's family-oriented communities to Richardson's tech-corridor proximity and Wylie's small-town atmosphere with big-city amenities. The northern reaches of the county, including Celina and Prosper, represent the newest growth frontiers where agricultural land continues converting to residential and mixed-use developments at unprecedented rates.

Market Dynamics and Geographic Complexity

Collin County's real estate market operates across multiple price tiers and geographic zones, creating microclimates that require specialized local knowledge to navigate effectively. The western portions command higher prices due to established infrastructure and proximity to corporate headquarters, while eastern areas offer more affordable entry points with significant appreciation potential as development expands outward.

Corporate relocations from California and other high-tax states continue driving demand, particularly in the luxury segment above $800,000, while the county's excellent school districts fuel consistent demand from families willing to pay premiums for top-rated educational access. This creates a complex market where inventory levels, pricing strategies, and buyer preferences vary significantly across relatively short geographic distances.

Why Businesses Need Collin County, Texas Agent Contact Data

Real estate service providers, from mortgage lenders to home improvement contractors, require direct access to Collin County's extensive agent network to capitalize on the county's sustained transaction volume and new construction activity. The ability to reach all 8,789 licensed agents via email enables targeted marketing campaigns for specialized services, referral program development, and partnership opportunities that can generate substantial revenue streams.

Technology companies, financial services firms, and professional service providers benefit from agent contact data to identify relocation opportunities, develop corporate housing partnerships, and establish relationships with agents who specialize in executive-level relocations. Given the county's continued growth trajectory and high-value transaction volume, maintaining current contact information for the entire agent population represents a crucial competitive advantage for businesses serving this lucrative market.

Current Property Listings

Tammy Martellini currently has no properties listed for sale in McKinney and surrounding areas. Check back later.

Current Property Rentals

As of 2/17/2026, Tammy Martellini has the following rental properties available in McKinney and surrounding areas.

$2,995

Listed 2026-02-05

8401 Hitching Trl
McKinney, TX  75070

Beds: 5.0
Baths: 3.0
Sq Ft: 3,218
Lot: 6,970 sf
Single Family Map
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$2,250

Listed 2026-02-03

808 Portina Dr
Anna, TX  75409

Beds: 4.0
Baths: 2.5
Sq Ft: 2,250
Lot: 17,424 sf
Single Family Map
View Full Details