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Sandra Diaz-Mills

Sandra Diaz-Mills
Real Estate Agent (Salesperson)
Prosper TX

Salesperson (TX: 0536249)

24 years experience

REALTOR® 3 Active Listings Serves Collin County, TX
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Contact Information

Brokerage
Ebby Halliday - Prosper / Celina

Office Website
Office Address
1390 N Preston Rd Ste 20
Prosper, TX  75078
(Collin County)
Office Phone
972-893-3130
Office Fax
Mobile
214-864-9220
Email
sdia******@****.com
Show Email for $5

Service Areas

Frisco: TX Little Elm: TX Hackberry: TX The Colony: TX Prosper: TX Celina: TX Lucas: TX Parker: TX Fairview: TX Allen: TX Weston: TX

About Sandra Diaz-Mills

With more than 25 years of experience in real estate management and sales, this professional is well-equipped to address all your real estate needs. Specializing in residential real estate for the past 17 years, they are committed to delivering exceptional customer service and achieving optimal results for clients.

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

$595,461
Avg. Listing Price
From Sandra'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

As of 2/17/2026, Sandra Diaz-Mills has 3 properties for sale in Prosper and surrounding areas.

$499,000

Listed 2025-08-07

9121 NE County Road 2170
Powell, TX  75153

Beds: 3.0
Baths: 2.0
Sq Ft: 1,512
Lot: 1,243,202 sf
Farm Map
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$750,000

Listed 2025-10-01

2500 Weston Rd
Weston, TX  75009

Beds:
Baths:
Sq Ft:
Lot: 169,231 sf
Land Map
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$395,000

Listed 2025-10-16

7133 Prairieside Trl
Venus, TX  76084

Beds: 4.0
Baths: 2.0
Sq Ft: 2,004
Lot: 8,581 sf
Single Family Map
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Current Property Rentals

As of 2/17/2026, Sandra Diaz-Mills has the following rental properties available in Prosper and surrounding areas.

$2,500

Listed 2026-02-12

2209 Barx Dr
Little Elm, TX  75068

Beds: 4.0
Baths: 3.0
Sq Ft: 1,960
Lot: 4,182 sf
Single Family Map
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$2,400

Listed 2025-11-13

1615 Sweetwater Way
Celina, TX  75009

Beds: 3.0
Baths: 2.0
Sq Ft: 1,907
Lot: 5,097 sf
Single Family Map
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