Services .


We specialize in designing custom living spaces from kitchens and bathrooms, to wine cellars and theater rooms, with projects ranging from small to large scale. Working directly with developers and builders on projects as well as individual homeowners, our designs achieve timeless and functional spaces in every home. 

Interior Design

We built our business on the belief that there is a big difference between a house and a home. That is why we sweat the details and take the time to understand the needs of every person (and pet) we work with. Our work is carefully tailored to each unique space, and consistent across all you’ll find an aesthetic that is timeless, original, and livable. 

Studio K

It is our hope to create beauty and luxury spaces for everyone with curated and bespoke pieces, whether you are a design client or someone looking for the perfect accessory for your home. Studio K, located in the heart of Fort Wayne, offers furnishings, accessories, and design inspiration no matter your budget. 

Our Story

Who we are

Hartzog Interiors, located in the heart of Fort Wayne yet nationally available, is an innovative full-service design company with over 15 years of experience. Founded by Katie Hartzog in 2009, we quickly became the premier design firm in the area shaping timeless, approachable, and functional, luxury spaces. Our team takes on small to large scale projects ranging from room design to home remodeling and new builds. 

We pride ourselves in providing exemplary experiences to every one of our clients. Through designer-led yet collaborative processes, we deliver customized results inspiring and elevating the lives of those who experience them. We’re proud to provide a holistic design service and are involved from the initial design phase through construction and completed design. There is nothing out of reach – from lighting design, to interior styling and art curation – we make it happen. 


Our Team .




Katie Hartzog

Owner | Interior Designer

Meet Katie, owner and interior designer of Hartzog Interiors and Studio K. She brings over 15 years of design, contracting, and development experience together with a creative eye to deliver one of a kind custom living spaces for her clients.

Growing up in Fort Wayne, Katie was inspired to bring her affection for décor and art to the Fort Wayne market. After graduating with her degree in interior design, and interning through college she was hired buy a local custom home builder and design studio where she worked for years before branching out to open her own business in 2009. Over the years, she and the Hartzog Interiors team have delivered a number of full-scale residential projects in the Fort Wayne area and beyond, and have helped local clients find beautiful and  unique statement pieces to feature in their homes through the Studio K showroom. She has a passion for curating individual pieces of art, accessories, custom furniture, drapery, and rugs, and spaces that host intentional choices that represent the personal style of her clients, providing them with a deep visceral sensation of happiness.

"I love my business and the endless opportunities that we are presented with the influence our clients lives with the creative process. I love the task of unveiling the beauty of old spaces, and the evolution of design of new ones. My favorite part of my job is being able to share my appreciation for timeless spaces that are unique to each client and inspired by my love of art, fashion, and architecture, and seeing the happiness a completed project brings to my clients.  I hope to continue to grow and bring inspiration to my clients, serving as a pillar of the design community in the Fort Wayne area for many years come."

Mark Hartzog

Co-Owner | Project Manager

Kirsten Moore

Office Manager

Madison Campbell

Studio Designer

Becky Johnson

Showroom Manager

Jen Lasley

Designer | Project Manager

Bob Smith

Project Controller

Luxury Spaces .

A timeless, approachable, luxury design where no space is off-limits is our goal with every project. We want your space to work for you and your family, while providing happiness and joy in your home. Intentional choices to spatial & architectural details mixed with distinctive options in decorative items that represent personal style are incorporated into every space.


Perfection .

Design inspiration comes in a variety of colors, patterns, and textures. We use a wide array of materials and objects to create interest in a room. We mingle patterns with hard lines, juxtaposing masculine and feminine silhouettes to create compelling sensual spaces with something for every member of a household, and focus on how lighting effects design and activity in every room. 

Testimonial .

  • Katie has been such a pleasure to work with. The experience has been great and her dedication to our home redesign shows in the final product. Thank you guys so much! We love it!

    Brandon S.
    Interior Design Client
Happy Clients
Amazing works
Awards winning
operated Years

Connect With Us .

Are you ready to start designing your new space? Schedule your consultation today.

Follow Along .

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