
About
Senior Real Estate Advisor·Allie Beth Allman & Associates
Based In Dallas
Grecia Garza-Castillo, GG to nearly everyone, works out of Allie Beth Allman & Associates on Oak Lawn Avenue and leads GGDALLAS Real Estate Group. She has been licensed in Texas since 2012, and her closings map the parts of Dallas that trade on reputation: Highland Park and University Park, Preston Hollow and Bluffview, Uptown, and the M Streets in East Dallas.
She came to real estate from a pre med path. A TCU graduate in neuroscience, psychology and Spanish, she took her licence months after graduation and never went back. The daughter of immigrant parents who ran their own business, she credits them for the standard she holds herself to: if you are going to do something, do it right.
Her work has been recognized with D Magazine’s Best Real Estate Agents list in 2020, 2021 and 2022, a Latino Business Award finalist nod in 2016 and 2017, and a feature on GGDALLAS Real Estate Group in the April 2026 issue of Modern Luxury Dallas. Away from work she volunteers with the Junior League of Dallas and The Warren Center, serves on the board of the Dallas TCU Alumni Association and on the board of Entrepreneurship and Innovation at TCU’s Neeley School of Business, and sits on the communications committee for DIFFA Dallas.
With a team behind her, you still get one point of contact. Call or text (409) 392-4832, in English or Spanish, and Grecia will come back to you the same day.
By The Numbers
More than $100 million in sales volume across the Park Cities, Preston Hollow, Bluffview, Uptown, East Dallas and out to Frisco and Fort Worth.
Texas real estate sales agent, TREC #623128, active and in good standing.
Named to D Magazine’s Best Real Estate Agents list in 2020, 2021 and 2022.
How I Help
Three ways to begin, each handled personally from first call to closing.

Private showings across the Park Cities, Preston Hollow and North Dallas, with a straight read on condition, price and resale.
Explore Buying →
Preparation, photography and pricing handled by a marketer, then placed in front of every buyer and agent working your neighborhood.
Explore Selling →
A quiet conversation about the market, your timing and your options. In English or Spanish.
Request A Consultation →Recent Representation
Seven of the closings published on her brokerage profile, from the Park Cities and Preston Hollow to the M Streets and Uptown.







Thinking About A Move
A private valuation, prepared personally, with a straight list of what would lift the number before it goes live.
Request A ValuationAddresses, specifications and photography as published on her Allie Beth Allman agent profile. Sale prices are not published there and are never estimated here.
On Instagram
New listings, quiet sales, Park Cities open houses and the occasional look behind a Dallas front door.
Client Reviews
Repeat clients and referrals carry this business. These are their words.
GG is a true professional and I loved working with her. Class act and would highly recommend.
She’s knowledgeable, patient and provides excellent service. Our transactions were seamless. She’s our go-to realtor in Dallas!
Grecia has located me to three different fabulous places over the past four years! I couldn’t be more satisfied!
One of the most pro-active brokers I know and really knows her stuff. She takes the time to understand your exact needs and acts on your behalf.
Her negotiation skills and calm demeanor were so refreshing. She helped us negotiate an incredible deal and listed and sold our home under 30 days!
Her attentiveness, professionalism, and organization allowed me to enjoy the experience, knowing that she had all the details handled.
GG is a true professional and I loved working with her. Class act and would highly recommend.
She’s knowledgeable, patient and provides excellent service. Our transactions were seamless. She’s our go-to realtor in Dallas!
Grecia has located me to three different fabulous places over the past four years! I couldn’t be more satisfied!
One of the most pro-active brokers I know and really knows her stuff. She takes the time to understand your exact needs and acts on your behalf.
Her negotiation skills and calm demeanor were so refreshing. She helped us negotiate an incredible deal and listed and sold our home under 30 days!
Her attentiveness, professionalism, and organization allowed me to enjoy the experience, knowing that she had all the details handled.
Areas Served
Six Dallas neighborhoods, each with its own buyer and its own pricing logic.
The centre of the Dallas luxury market, and the most protected address in the city.
Ask About Highland Park →
Park Cities schools with a wider range of price points than Highland Park.
Ask About University Park →
Acre lots, gated drives and the estate end of the Dallas market.
Ask About Preston Hollow →
Creek lots, mature trees and architecture that is not all one thing.
Ask About Bluffview →
1920s Tudors, real trees and the best value in central Dallas.
Ask About Lakewood and M Streets →By Appointment
Buying, selling or simply weighing the market. Start with a private conversation, no obligation.
Request A Consultation