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Mary Andrea Duperier

Mary Andrea Duperier
Real Estate Agent (Salesperson)
Fredericksburg TX

Salesperson (TX: 0452393)

30 years experience

REALTOR® 4 Active Listings Serves Gillespie County, TX
View on Realtor.com

Contact Information

Brokerage
Exp Realty Llc
Office Address
412 S Adams St Ste 191
Fredericksburg, TX  78624
(Gillespie County)
Office Phone
888-519-7431
Office Fax
Mobile
830-796-5558
Email
siss*********@*****.com
Show Email for $5

Service Areas

Lake Medina Shores: TX Bandera: TX Lakehills: TX Pipe Creek: TX Tarpley: TX Blanco: TX Hye: TX Johnson City: TX Round Mountain: TX Cypress Mill: TX Round Rock: TX Burnet: TX Buchanan Dam: TX Highland Haven: TX Granite Shoals: TX Marble Falls: TX Lago Vista: TX Meadowlakes: TX Cottonwood Shores: TX Horseshoe Bay: TX Bend: TX Cherokee: TX Richland Springs: TX KatemcY: TX San Saba: TX Junction: TX Telegraph: TX London: TX Roosevelt: TX Doss: TX Fredericksburg: TX Stonewall: TX Albert: TX Willow City: TX Camp Wood: TX Leakey: TX Rio Frio: TX Art: TX Fredonia: TX Mason: TX Pontotoc: TX Copperas Cove: TX Kempner: TX Lampasas: TX Lometa: TX Camp Verde: TX Center Point: TX Hunt: TX Ingram: TX Kerrville: TX Mountain Home: TX Bergheim: TX Fair Oaks: TX Sisterdale: TX Boerne: TX Scenic Oaks: TX Fair Oaks Ranch: TX Comfort: TX Kendalia: TX Waring: TX Castell: TX Valley Spring: TX Bluffton: TX Kingsland: TX Sunrise Beach Village: TX Sunrise Beach: TX Llano: TX Tow: TX Buchanan Lake Village: TX Castroville: TX Devine: TX Medina: TX

About Mary Andrea Duperier

Andrea Sissy duPerier, a proud Texan and second-generation REALTOR®, has been immersed in the real estate world from a young age. Inspired by her father, Harold duPerier, she learned the value of determination and the mantra of “making it happen.” Growing up in a family of eight, her nurturing nature earned her the enduring nickname "Sissy." Her diverse experiences span the state, having lived in locations from Beaumont to Alpine.

Sissy holds a bachelor's degree in Elementary and Physical Education from Sul Ross State University, which she utilized as a teacher and coach. Her commitment to education extended to a nine-year tenure on the School Board, where she cherished the impact she made on her students. However, she ultimately discovered that her true passion lies in real estate.

As a devoted mother to two grown children, Caitlynn and Graham, Sissy is deeply committed to helping others. In her free time, she actively volunteers with organizations such as Meals on Wheels, local food pantries, Rotary, and women’s shelters.

Since obtaining her real estate license in 1996, Sissy has dedicated herself to continuous professional development, accumulating over 550 educational hours to remain informed about the latest laws, principles, and ethical standards in the industry. She is a recognized designee and active member of the Graduate Realtor Institute (GRI), reflecting her commitment to enhancing her expertise for the benefit of her clients.

With more than 20 years of experience in real estate, Sissy combines honesty, ethics, determination, and sophistication to provide exceptional service. She is dedicated to simplifying the buying process, whether for a new home or ranch.

Sissy expresses her enthusiasm for real estate by stating, “What excites me most is the rewarding nature of this profession. The thrill of searching for, showing, and ultimately finding the perfect property for my clients is something I will always cherish. I understand that home and ranch purchases can be complex, but I promise to be there with you every step of the way.”

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

$1,103,414
Avg. Listing Price
From Mary Andrea's portfolio
3.4 / 2.7
Avg. Beds/Baths
Typical property size
2,446 sf
Avg. Square Footage
Interior living space
518
Active Listings
Current inventory

Nestled in the heart of Texas Hill Country, Gillespie County presents a unique real estate landscape that blends rural charm with growing commercial opportunities. The county's market is characterized by a tight-knit professional community of exactly 194 actively licensed real estate agents, creating an intimate yet competitive environment where relationships and local knowledge drive transactions.

What makes Gillespie County particularly noteworthy is the complete digital connectivity of its agent network—all 194 licensed professionals maintain email contact information, reflecting a modern approach to business in this traditionally rural area. This digital accessibility facilitates faster communication and deal flow, despite the county's sprawling geographic nature and diverse property types ranging from historic downtown commercial spaces to expansive ranch properties.

Major Gillespie County, Texas Real Estate Markets

Fredericksburg dominates the county's real estate activity as both the county seat and primary commercial hub. The city's German heritage and thriving wine tourism industry have created sustained demand for both residential properties and commercial real estate, particularly hospitality-related investments. The historic Main Street corridor remains highly sought after for retail and restaurant ventures, while surrounding residential areas see consistent activity from both local buyers and Austin-area relocations seeking Hill Country lifestyle.

Beyond Fredericksburg, smaller communities like Stonewall, Luckenbach, and Harper contribute to the county's diverse market dynamics. These areas primarily feature rural residential properties, working ranches, and recreational land purchases. The presence of several renowned wineries and the proximity to Austin—just 80 miles southeast—has elevated property values throughout the county, creating opportunities for agents specializing in luxury rural estates and investment properties.

Market Dynamics and Geographic Complexity

Gillespie County's real estate market operates with surprising sophistication for a rural area, driven largely by tourism revenue and urban flight from Austin and San Antonio. The county's 1,061 square miles encompass everything from dense commercial districts to vast ranch lands, requiring agents to possess diverse expertise across property types. Seasonal fluctuations tied to tourism create unique timing considerations, with peak activity often coinciding with wine harvest season and major festivals.

The limited number of active agents relative to the county's size means individual professionals often handle diverse portfolios, from downtown commercial leases to multi-thousand-acre ranch sales. This creates a market where agent specialization is less common than in urban areas, but local expertise and long-term relationships prove invaluable for navigating complex rural transactions and understanding generational property transfers.

Why Businesses Need Gillespie County, Texas Agent Contact Data

The complete email accessibility of all 194 Gillespie County agents presents unique opportunities for service providers, lenders, and vendors targeting this specialized market. Unlike urban markets where agent networks can be fragmented and difficult to reach, this county offers complete market penetration potential through direct digital communication with every licensed professional, enabling targeted marketing campaigns for title services, mortgage products, or real estate technology solutions.

For businesses seeking to establish relationships in Texas Hill Country's growing real estate sector, Gillespie County serves as an ideal entry point. The manageable agent population allows for personalized outreach and relationship building, while the county's economic growth and proximity to major metro areas suggest expanding business opportunities that forward-thinking companies can capitalize on through early relationship establishment.

Current Property Listings

As of 2/13/2026, Mary Andrea Duperier has 4 properties for sale in Fredericksburg and surrounding areas.

$185,000

Listed 2025-10-18

S Walcott Ridges Dr Lot 51
Kerrville, TX  78028

Beds:
Baths:
Sq Ft:
Lot: 175,111 sf
Land Map
View Full Details

$989,000

Listed 2022-09-26

326 Rocky Creek Rd
Medina, TX  78055

Beds: 3.0
Baths: 2.0
Sq Ft: 2,169
Farm Map
View Full Details

$1,300,000

Listed 2025-11-18

801 Mickle Creek Rd
Medina, TX  78055

Beds: 2.0
Baths: 2.0
Sq Ft: 2,000
Farm Map
View Full Details

$399,000

Listed 2025-10-18

White Bluff Rd
Medina, TX  78055

Beds: 4.0
Baths: 2.0
Sq Ft: 1,344
Farm Map
View Full Details

Current Property Rentals

Mary Andrea Duperier currently has no rental properties available in Fredericksburg and surrounding areas. Check back later.