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Who  We  Are

Studio G, based in The Woodlands, Texas is a Full-Service Residential and Commercial design firm with clients throughout the country. We specialize in new construction, remodel and interior design. 


Our mission is to utilize an understanding of our clients' preferences and lifestyle as a catalyst for creating a space that goes above and beyond their expectations. Our firms customized, one of a kind designs leave our clients with a design that is a blend of the past, present and future, with both a functional and luxurious space that they can enjoy for years to come.

Meet  The  Team

Tammie Gandarillas

Owner | Principal Designer

Studio G Interior Design (formerly Gandarillas Interiors) was founded as a natural extension of Tammie's love of design as well as her BA in Interior Design and Minor in Art. Her drive to learn all aspects of design started early when as a student she chose an internship with a furniture firm. Her goal was to learn about the manufacturing of furniture with a focus on construction specifications and quality. Tammie believes that furnishings are a integral part of design. She holds a wealth of experience in part from working with two local design firms. During her career, her commitment to learning the underpinnings of design excellence and superior construction led her to work with a kitchen design firm. It was there she expanded her knowledge not only of kitchen and bath design, but of cabinet construction.


Tammie is truly a detail oriented, bottom-to-top, specialized designer. She understands that the finished project not only needs to look good, but be great through excellence in design and planning, selection of high-quality products, and experienced implementation from start to finish.

Monica Handfelt

Interior Designer

Monica inherited the joy of creativity from her mother and design partner, Tammie Gandarillas. As a young girl, she was fascinated with textiles and design, and taught herself to make purses and dresses. She developed a deep interest in fashion while experimenting with sewing and styling, and wanted to expand her creativity further. 


While earning a BS in Fashion Merchandising from University of North Texas, Monica worked as a wardrobe stylist in Dallas and interned in New York City. It was not lost on her that many of the principles and elements of her plan of study overlapped with Interior Design curriculum. This peaked her interest to pursue interiors, and after a couple of years post-grad, Monica was led back to Studio G to practice Interior Design. It was during this transition she discovered that not only did she like interior design, she was good at it.


Monica brings a relaxed, but elegant style to Studio G. She has a detail-oriented approach in her designs and process, enjoys listening to the needs of her clients, and guides them into timeless style.

Tzeitel Petrzelka

Interior Designer


Tzeitel Petrzelka gradutated from the Art Institute of Houston with a BFA in Interior Design. With over 13 years of experience in local interior design firms and indepenent contracting, she enjoys the personable aspect of design. She enjoys listening the the clients ideas and needs in order to create unique spaces that reflect their lifestyle and personality. 

Her design inspiration is technology and current trends. She uses that inspiration to create her personal style of relaxed transitional and soft modern.

Cindy Clark

Interior Designer

Cindy embodies a wealth of experience from her early days in co-ownership of an Antique and Decor shop as well as designing for her father, a custom home builder. She expanded her career and knowledge by learning the art of custom drapery and bedding, and interior decorating from her past 8 years buying and decorating for a local furniture store. 


Cindy offers an energetic and creative approach with her projects. She enjoys bold color, movement, and warmth in her designs. With a passion of textiles, clients boast her ability to create beautiful bedding and drapery treatments. 


Cindy's personal style is a blend of Antiques, French Country with pops of the most current trends.


Carrie Handfelt

Client Accounts Manager

Carrie holds an MBA and a BS in Finance from Oklahoma State University. She has a deep seated belief that family owned businesses are the backbone of America. With that belief, working at Studio G as the Client Accounts Manager with daughter-in-law, Monica, and business owner, Tammie is a perfect fit.


In an office permeated with creativity, Carrie offers grounding and policies and procedures. She is considered to be a long-term thinker, with valued business development ideas. Carrie manages client accounts in a manner demonstrating her care of both the business and the client.

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